GPT-5.6 Sol matches Mythos Preview on ExploitBench, adds Ultra mode with subagents for complex workflows, and max reasoning for deep problem-solving
We're beginning a limited preview of the GPT-5.6 series: Sol, our flagship model; Terra, a balanced model for everyday work; and Luna, a fast and affordable model.
OpenAI
Context & Ripple Effects
OpenAI’s limited GPT-5.6 preview spans three positioning tiers: Sol as flagship, Terra for everyday work, and Luna for speed and affordability. The preview was reportedly limited to roughly 20 companies, with participants disclosed to the US government.
Related coverage places the release in a security-sensitive arc: Sol matched Mythos Preview on ExploitBench, while OpenAI said Sol and Terra could identify vulnerabilities but could not autonomously complete end-to-end attacks against hardened targets. A subsequent broad release and the launch of ChatGPT Work suggest the models are being positioned for work across apps and files, not just standalone chat.
First-order effects
- Preview participants gain access to a model lineup differentiated by capability, cost, and speed, including Sol’s Ultra mode, which uses subagents and maximum reasoning for more complex workflows.
- OpenAI’s security claims put immediate emphasis on controlled deployment: the models show vulnerability-finding capability, but the reported limit on autonomous attacks against hardened targets remains a key boundary.
Second-order effects
- Enterprise adopters will need to assess agent-style workflows differently from single-model prompting, because subagents and cross-context work can expand both task completion and oversight requirements.
- Rival model providers face pressure to compete not only on benchmark performance but also on tiered product design, deeper reasoning modes, and evidence about the limits of cyber-capable behavior.
Third-order effects
- If broad deployment follows the preview, frontier-model competition is likely to shift toward managed, multi-agent workplace systems rather than a single general-purpose model interface.
- The combination of cyber-capability evaluation and disclosed preview participation points toward more formalized access controls and evaluation expectations for increasingly capable agentic models, though the corpus does not establish what regulatory requirements will follow.
The trend: This is one data point in the move from standalone AI models toward tiered, agentic work systems released through progressively broader and more controlled deployment channels.
Related: ExploitBench · GPT-5.6 Sol matches Mythos Preview on ExploitBench, adds Ultra mode wi · OpenAI says GPT-5.6 Sol and Terra were capable of identifying vulnerab · OpenAI releases three versions of GPT-5.6, called Sol, Terra, and Luna
Related Coverage
- OpenAI names Prabhjeet Singh India MD, launches GPT-5.6 Sol with stronger cyber protections Livemint · Aman Gupta
- OpenAI limits GPT-5.6 rollout after government request, says restrictions shouldn't be the norm TechCrunch · Rebecca Bellan
- OpenAI launches a limited preview of GPT-5.6 for a ‘small group of trusted partners’ Engadget · Mariella Moon
- OpenAI Restricts GPT-5.6 Release to Government-Approved Partners Implicator.ai · Marcus Schuler
- OpenAI unveils GPT 5.6 family of AI models, but you can't use them yet: Here is why Digit · Ayushi Jain
- OpenAI Limits GPT-5.6 Rollout at US Government's Request DataBreachToday.com · Emilia David
- OpenAI sparks crypto frenzy with GPT-5.6 Sol, Terra and Luna names crypto.news · Lawrence Mondal
- OpenAI Announces GPT-5.6 with Sol, Terra, and Luna Models Under Government Review iThinkDifferent · Imran Hussain
- OpenAI Unveils GPT-5.6 Sol, Terra, and Luna in Limited Preview iClarified · Shalom Levytam
- OpenAI's best model just shipped behind a government gate Unite.AI · Alex McFarland
- OpenAI introduces GPT-5.6 to challenge Claude Mythos 5 SiliconANGLE · Maria Deutscher
- OpenAI Previews GPT-5.6 Sol And New Model Family Pulse 2.0 · Amit Chowdhry
- OpenAI launches GPT-5.6 Sol preview for select partners TestingCatalog AI News · Alexey Shabanov
- OpenAI details what to expect from the three new models in its GPT-5.6 preview Android Authority · Stephen Schenck
- METR says GPT-5.6 Sol cheated enough to break its capability test RuntimeWire · Ryan Merket
- OpenAI Drops GPT-5.6 ‘Sol,’ Calls It The Strongest Model Yet As AI Arms Race Escalates Benzinga · Caroline Ryan
- OpenAI releases new GPT-5.6 model to select partners FCW · Alexandra Kelley
- GPT-5.6 is here with better security and coding—so why can't you use it yet? How-To Geek · Jon Fingas
- Breaking: OpenAI Sparks Crypto Buzz With GPT-5.6 Models Named Sol, Terra and Luna CoinGape · Kritika Mehta
- How OpenAI's GPT-5.6 just edged past Mythos The Deep View · Nat Rubio-Licht
- OpenAI Previews GPT-5.6 With Sol, Terra, and Luna: Tiered Models, New Reasoning Modes, Limited Access MarkTechPost · Michal Sutter
- OpenAI Rolls Out GPT-5.6—But Only for Some Users Due to Trump Admin Decrypt · Jason Nelson
- OpenAI announces GPT-5.6 Sol, its next-generation flagship model beating Claude Mythos 5 Neowin · Pradeep Viswanathan
- ChatGPT's powerful GPT-5.6 models arrive, but not for you PCWorld · Ben Patterson
- OpenAI launches Claude Mythos rival GPT-5.6 Sol under government access it calls unsustainable The Decoder · Matthias Bastian
- OpenAI reveals its most advanced GPT-5.6 model, but you can't access it yet Digital Trends · Varun Mirchandani
- OpenAI Launches GPT-5.6 Sol, Terra, and Luna in Limited Preview MacRumors · Juli Clover
- OpenAI releases GPT-5.6 in limited preview pending US goverment sign off Constellation Research · Larry Dignan
- OpenAI limits GPT-5.6 public release after request from Trump administration The American Bazaar · Nileena Sunil
- OpenAI Restricts Access to Latest AI Models at US Government Request PYMNTS
- OpenAI slow rolls new model release at ‘request’ of government The Hill · Miranda Nazzaro
- OpenAI upgrading ChatGPT and Codex with new GPT-5.6 models in limited release 9to5Mac · Zac Hall
- OpenAI unveils GPT-5.6 Sol, Terra and Luna models — but only accessible to limited preview partners for now, per US Gov VentureBeat · Carl Franzen
- OpenAI unveils GPT-5.6 amid US AI regulatory drama The Verge · Hayden Field
- LEAK: GPT-5.6 Rollout May Be Closer Than Expected, Early Enterprise Testing Reportedly Begins WinCentral · Nisha
- Washington Now Sorts the GPT-5.6 Queue Shelly Palmer
- OpenAI Rolls Out Powerful GPT-5.6 Models To Limited Users Vetted By U.S. Government Forbes · Conor Murray
- Summary of METR's predeployment evaluation of GPT-5.6 Sol METR
- OpenAI releases “our strongest model yet,” but only “trusted partners” get to use it for now The Stack · Tom Krazit
- Previewing GPT-5.6 Sol: a next-generation model Hacker News
- OpenAI Launches GPT-5.6 Sol, Terra, and Luna in Limited Preview MacRumors Forums
- The U.S. government will decide who gets to use the latest American AI technology Washington Post
- OpenAI releases its most powerful AI model to just 20 partners, each one approved by the US government The Next Web · Ana Maria Constantin
- OpenAI Limits Release of New Model Under Pressure From US Bloomberg · Rachel Metz
- OpenAI restricts limited release of new model to US only Agence France-Presse
- OpenAI limits new AI models to ‘trusted partners’ at request of U.S. government CNBC · Ashley Capoot
- OpenAI puts GPT-5.6 Sol behind a government-gated preview RuntimeWire · Ryan Merket
- Quoting OpenAI — We're beginning a limited preview of the GPT-5.6 series: Sol … Simon Willison's Weblog · Simon Willison
- Trump administration asks OpenAI to limit next model release Axios
- OpenAI Has New AI Models. Here's Why You Can't Use Them Wired · Maxwell Zeff
- OpenAI will delay GPT-5.6 after Trump administration request The Verge · Hayden Field
- White House wants OpenAI to limit the launch of its next model Mashable · Stan Schroeder
- Introducing GPT-5.6: OpenAI Launches Sol, Terra, and Luna Models for Every AI Workload WinCentral · Nisha
- Administration to Decide Access to ChatGPT Upgrade Newser · Bob Cronin
- Trump Administration Seeks Limited Release Of OpenAI Model After Anthropic Shutdown The Daily Caller · Arianna Hooker
- OpenAI to Roll Out GPT-5.6 in Phases With U.S. Government Approval Seoul Economic Daily · Park Yun-Seon
- OpenAI agrees to stagger rollout of its most powerful model to only Trump-approved customers Fortune
- OpenAI launches limited release of new model in US only Agence France-Presse · MC Learn
- OpenAI Limits Rollout of Advanced Models. Blame the Feds. Barron's Online · Angela Palumbo
- OpenAI's government chaperone Tech Brew · Whizy Kim
- The US government just told OpenAI who's allowed to use the next GPT 5.6 model The New Stack · Adrian Bridgwater
- Trump Administration Asks OpenAI To Limit GPT-5.6 Release Over Security Concerns International Business Times · Merin Rebecca Thomas
- OpenAI says access to its new GPT-5.6 model is limited at the US government's request Business Insider
- Trump administration gets OpenAI to slow-track new model release over security concerns Android Authority · Ryan McNeal
- OpenAI releases GPT-5.6 to select users vetted by US government Financial Times · Cristina Criddle
- OpenAI Releases GPT-5.6 to U.S. Government-Approved Customers The Information · Stephanie Palazzolo
- OpenAI defers public rollout of GPT-5.6 as US seeks early access to frontier AI models Reuters · Jaspreet Singh
- Trump Administration Asks OpenAI to Limit GPT-5.6 Rollout: Reports Decrypt · Jason Nelson
- US tells OpenAI to restrict access to its most powerful AI model Computerworld · Maxwell Cooter
- The Government Boot Is Coming Down on AI Gizmodo · Webb Wright
- White House Halts Broad Rollout of OpenAI's GPT-5.6 Over National Security, Cybersecurity Concerns Techstrong.ai · Jon Swartz
- OpenAI's ChatGPT-5.6 gets the same banhammer treatment as Anthropic's Mythos from the federal government … Tom's Hardware · Jowi Morales
- GPT-5.6 gets the Fable treatment Transformer · Shakeel Hashim
- White House Will Ad Hoc Decide Who Can Individually Access GPT-5.6 Don't Worry About the Vase · Zvi Mowshowitz
- US reportedly wants OpenAI to delay GPT-5.6 rollout after restrictions on Anthropic's models MediaNama · Rohit Singh
- US Gated OpenAI's GPT-5.6 After Anthropic's Fable 5 Ban: What It Means for Crypto The Crypto Times · Divya Mistry
- OpenAI to release GPT-5.6 in limited preview after US government seeks staggered launch Moneycontrol · MC Learn
- White House asks OpenAI to restrict GPT-5.6 access Nairametrics · Samuel Daniel
- White House reins in OpenAI's GPT-5.6 The Rundown AI
- OpenAI's GPT 5.6 rollout now requires US government approval on a “customer by customer basis” The Decoder · Matthias Bastian
- Sources: Sam Altman told staff the US government asked OpenAI to stagger GPT-5.6's release over security concerns and that the US would approve each customer The Information
- OpenAI Launches “Next-Gen” GPT-5.6 Models in Limited Preview Thurrott · Laurent Giret
- What happened after 2,000 people tried to hack my AI assistant (via) Fernando Irarrázaval ran … Simon Willison's Weblog · Simon Willison
- OpenAI's new flagship model GPT-5.6 Sol cheats on software tests more than any model before it The Decoder · Matthias Bastian
- OpenAI Launches Limited Preview of GPT-5.6 Sol, Terra, and Luna The Mac Observer · Rajat Saini
- Trump administration asks OpenAI to stagger release of new model to vet users Financial Times
- OpenAI unveils GPT-5.6 AI models with phased rollout and stronger safety checks The Economic Times
- GPT-5.6 Sol Launches Under Government Lock: Cyber Risk Sets New Access Precedent Tech Times · Richard L. Wells
- OpenAI's GPT-5.6 Models Sol, Terra, and Luna Stir Crypto Conversations Despite No Blockchain Connection Blockonomi · Trader Edge
- ChatGPT's Most Powerful Model Is Out Of Reach For Users Trak.in · Mohul Ghosh
- OpenAI Previews GPT-5.6 Sol With Restricted Access and Stronger Cyber Safeguards The Hacker News
- OpenAI Announces Sol, Terra, and Luna AI Models; U.S. Government Blocks Wide Release The Hans India · Kahekashan
- Are frontier models really too dangerous? Ben Werdmuller
- 'We don't believe this kind of government access process should become the long-term default': OpenAI unveils big GPT-5.6 upgrades for ChatGPT, but you can't use them yet TechRadar · David Nield
- OpenAI's GPT-5.6 gets staggered release after Trump administration cites national security concerns TechSpot · Kishalaya Kundu
- Anthropic's Mythos 5 AI model cleared by U.S. for wider use Fortune
- White House Eases Restrictions on Anthropic's Mythos 5, Allowing Restricted Rollout to Vetted Orgs Techstrong.ai · Jon Swartz
- After Anthropic Showdown, Trump Administration Presses OpenAI To Limit GPT-5.6 Release: Report Benzinga · Namrata Sen
- The U.S. Government Just Put OpenAI's GPT-5.6 Under Lock And Key Ubergizmo · Paulo Montenegro
- The Trump administration doesn't want you to use OpenAI's GPT-5.6 without its approval Neowin · David Uzondu
- OpenAI's next flagship AI model faces launch delay; White House demands safety checks Business Today
- OpenAI releases three versions of GPT-5.6, called Sol, Terra, and Luna, as a limited preview to ~20 companies, with participants disclosed to the US government Axios
- Like Anthropic, OpenAI may restrict GPT 5.6 access during initial rollout: Here is why Digit · Ayushi Jain
- Trump administration steps in to limit OpenAI's latest model launch Politico · Cheyenne Haslett
- OpenAI Reportedly Delays ChatGPT 5.6 Release Following Trump Administration Request Cyber Security News · Guru Baran
- OpenAI to release GPT 5.6 model on staggered basis in face of US regulatory uncertainty DigiTimes
Discussion
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@openai
@openai
on x
Introducing a limited preview of GPT-5.6 Sol, our next generation frontier model, as well as GPT-5.6 Terra, a balanced model for efficient, everyday work, and GPT-5.6 Luna, a fast and affordable model for high-volume work. https://openai.com/...
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@metr_evals
@metr_evals
on x
OpenAI gave METR early access to GPT-5.6 Sol for testing including raw chain-of-thought, a railfree version of the model, and internal information about the model. With this access, METR conducted a pre-deployment evaluation of GPT-5.6 Sol, including an attempted measurement of
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@mark_k
Mark Kretschmann
on x
Big release from @OpenAI: GPT-5.6 is here in preview. The new family has three tiers: Sol as the flagship, Terra as the balanced everyday model, and Luna as the fast low-cost option. Terra is positioned around GPT-5.5-level performance at 2x lower cost, while Luna brings GPT-5.6 …
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@tomekkorbak
Tomek Korbak
on x
the system card of GPT-5.6 is worth reading closely: capability is clearly up, but alignment failure modes are also becoming more concrete
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@angaisb_
Angel
on x
GPT-5.6 Sol is basically Mythos-Preview-level at ExploitBench I hope Anthropic has Fable 5 back by the time GPT-5.6 drops because if not they're going to try so hard to take it down too [image]
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@shakeelhashim
Shakeel
on x
“GPT-5.6 Sol's detected cheating rate was higher than any public model we have evaluated” “In one example, an instance of the model instructed another instance to conceal evidence of misalignment.”
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@tomekkorbak
Tomek Korbak
on x
GPT-5.6 Sol's CoT controllability—while still low in absolute terms—is higher than in previous models. In general, greater CoT controllability can reduce CoT monitorability. I don't think GPT-5.6 Sol crosses a threshold for concern, but we're investigating what's driving it. [ima…
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@rohanpaul_ai
Rohan Paul
on x
Some key findings from GPT-5.6 Preview System Card - GPT-5.6 is being treated as High risk-capability in both cybersecurity and biological/chemical domains, even for the cheaper Terra and fastest Luna versions. - OpenAI says this is the first time smaller and faster models in a […
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@lexnlin
Leon Lin
on x
GPT 5.6 Sol is stronger than mythos 5??
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@_simonsmith
Simon Smith
on x
GPT-5.6 has a METR 50% time horizon of anywhere from 11.3 hours to 270, with a “highly uncertain” estimate of 71, because it “cheated” (exploited bugs or used disallowed strategies) on some of the tasks. I didn't see an 80% number reported. [image]
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@chasebrowe32432
Chase Brower
on x
Extremely funny; METR estimates gpt-5.6's 50% time horizon as between 5 hours and 11,400 hours https://metr.org/... [image]
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@scaling01
@scaling01
on x
Apollo Research found that GPT-5.6 poses a substantially higher risk of catastrophic scheming compared to baselines [image]
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@notjazii
@notjazii
on x
what an unexpected launch OpenAI just introduced GPT-5.6 Sol along with terra and luna the most interesting one is GPT-5.6 Sol: > beats Mythos and Fable 5 > way cheaper than Fable > same price as GPT-5.5 but sadly these won't be available to everyone right now cuz US govt is [ima…
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@teroterotero
Tero Kuittinen
on x
OMG this is insufferable... people with Sol access are flexing on the main... as peons flatter them in their mentions to get a bit closer to the in crowd.
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@ericvishria
Eric Vishria
on x
The largest, frontier OAI model at nearly 750 tps on Cerebras! “We're also launching GPT-5.6 Sol on Cerebras at up to 750 tokens per second in July, bringing frontier intelligence to customers at unprecedented speed.”
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@pigeon__s
@pigeon__s
on x
so GPT-5.6 actually IS more token efficient on the same reasoning tier compared to GPT-5.5 its just that 5.6 also introduces a new tier which is less efficient but unlike Anthropic models where more reasoning barely helps like Fable 5 medium and max are basically identical [image…
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@lexnlin
Leon Lin
on x
damn why is gpt 5.6 that token efficient, thats crazy
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@micahcarroll
Micah Carroll
on x
GPT-5.6 Sol is a significant step up in capabilities, but can also exhibit concerning forms of misaligned behaviors in agentic coding settings. The system card contains some of our analyses on this, which leveraged deployment simulations and our internal CoT monitoring systems. […
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@voidstatekate
@voidstatekate
on x
GPT 5.6 paperclipmaxxing confirmed “GPT-5.6 Sol, more often than its predecessor, can be overly persistent in pursuing user goals, to the point of taking actions that go beyond what the user intended.” - User authorized deleting VMs 1, 2, and 3. Sol couldn't find them, so it [ima…
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@chetaslua
@chetaslua
on x
🚨 Biggest takeaway from this launch Btw f@ck you dario for fear mongering and now making sota unreachable for us peasants On ExploitBench², GPT-5.6 Sol is competitive with Mythos Preview using only ~1/3 of the output tokens. [image]
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@scaling01
@scaling01
on x
GPT-5.6 on par with Claude Mythos Preview on ExploitGym and outperforming it with a 6-hour cap (Mythos was only given 2 hours) [image]
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@rohanpaul_ai
Rohan Paul
on x
Sol delivers near-frontier cyber-exploitation capability much more efficiently. GPT-5.6 Sol reaches roughly 70% on ExploitBench with about 120K output tokens, far above GPT-5.5 and the cheaper GPT-5.6 models. Mythos Preview scores slightly higher, but it uses roughly 3x more [ima…
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@hesamation
@hesamation
on x
HOLY SHIT... GPT-5.6 Sol scores just as strong as Mythos Preview at 1/3 of output tokens, on cybersecurity and it's designed for defense rather than cyber attacks. [image]
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@scaling01
@scaling01
on x
OpenAI let METR benchmark GPT-5.6, but results were rejected because GPT-5.6 was cheating too often for the results to be comparable/interpretable [image]
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@dieaud91
Diego Aud
on x
GPT-5.6 seems like a very strong model and -at least in some benchmarks - competitive with, or even ahead of, Mythos. My hunch is that the Sol variant might be larger than 5.5 in terms of parameter count, and perceptibly better in complex real-world workflows. Can't wait to try
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Hagay Lupesko
Hagay Lupesko
on linkedin
Super excited to welcome GPT-5.6 Sol: OpenAI's new frontier model, another step towards AGI 🚀 …
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@timkellogg.me
Mr. Tim
on bluesky
GPT-5.6: Sol, Terra & Luna — 3 model sizes, like Anthropic does. Sol appears to be a Mythos class model at peak reasoning — Also comes with max reasoning effort and a new ultra mode that uses subagents server-side behind the API — openai.com/index/previe... [image]
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@isolyth.dev
Eris
on bluesky
OpenAI has unveiled 5.6! It comes with a new naming scheme, where ‘sol’ is the most powerful, ‘terra’ is the middle option, and ‘luna’ is the smallest. Much better than mini nano etc imo. They're starting with a preview for corps, bc of USG, and they say they don't like having…
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r/wallstreetbets
r
on reddit
Cerebras wafers will be used to serve GPT-5.6-Sol (Mythos tier) at 750 tok/s
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r/theprimeagen
r
on reddit
OpenAI launches GPT-5.6 Sol Limited Preview
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r/programare
r
on reddit
Gpt 5.6 sol preview
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r/NVDA_Stock
r
on reddit
OpenAI Sol
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r/singularity
r
on reddit
Previewing GPT-5.6 Sol: a next-generation model
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@sama
Sam Altman
on x
Good new first: Sol is a smart, efficient, and a significant step forward. It is the same price as GPT-5.5. Also launching in the GPT-5.6 family is Terra, with 5.5-level performance at half the price. Bad news: at the request of the US government, it is launching today in limi…
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@kimmonismus
@kimmonismus
on x
HOLY: OpenAI is previewing GPT-5.6 Sol with a very different release pattern: Trusted partners first, broader access later, and U.S. government coordination up front. The new GPT-5.6 family includes Sol, Terra, and Luna. OpenAI says Sol is its strongest model yet, with a new ma…
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@reach_vb
@reach_vb
on x
Introducing GPT-5.6: Sol, Terra and Luna. ☀️ Sol is our strongest model yet 🌍 Terra delivers performance competitive with GPT-5.5 at half the price 🌙 Luna brings strong capabilities at lowest cost Sol Ultra sets a new state of the art on Terminal-Bench 2.1 with a score of [image]
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@kimmonismus
@kimmonismus
on x
OpenAI says a broader GPT-5.6 release could come in the next few weeks, after an initial restricted launch. Axios reports GPT-5.6 is starting with around 20 government-approved companies, with access expected to expand to more companies next week. OpenAI says the government is [i…
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@openai
@openai
on x
GPT-5.6 Sol is our most capable model yet for cybersecurity. It shifts the performance-efficiency frontier for long-horizon security tasks including vulnerability research and exploitation. [image]
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@scaling01
@scaling01
on x
GPT-5.6 benchmarks for internal CTF challenges GPT-5.6 Sol - the main flagship model is much more token efficient than GPT-5.5 and also scores slightly higher GPT-5.6 Terra, the new Mini model, scores slightly below GPT-5.5 GPT-5.6 Luna which is like the nano version of [image]
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@bindureddy
Bindu Reddy
on x
Oh for good measure, GPT 5.6 tops all the leaderboards Yes, even agentic coding Especially on typescript, python and javascript 🚀🚀
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@kanishkanarayan
Kanishka Narayan MP
on x
1/ We are at a decisive moment. AI's cyber capabilities are advancing across the board, with real implications for our national security. The announcement of OpenAI's GPT-5.6 Sol is another reminder we must strengthen the resilience of our cyber defences now.
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@mattshumer_
Matt Shumer
on x
The government is leading us down a very dangerous road. This will dramatically worsen inequality.
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@patricktoulme
Patrick C Toulme
on x
Cerebras is going to 1T. Deep in the GPT 5.6 announcement is this gem. This offering will be a high priced fast mode offering for agentic coding. You will see customers like quant funds etc who have unlimited budget and the need for the fastest agentic coding in the world using […
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@firstadopter
Tae Kim
on x
OpenAI Unveils GPT-5.6. It Outperforms Anthropic's Mythos. On Friday, OpenAI unveiled its newest series of AI models, named GPT-5.6. “GPT-5.6 Sol is our strongest model yet,” the company said in a blog post. The GPT-5.6 series includes: “Sol, our flagship model; Terra, a [image]
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@thezvi
Zvi Mowshowitz
on x
As arbitrary new naming conventions go, it's actually not bad.
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@dakshay
Dakshay Mehta
on x
GPT-5.6 finally!! More capable than Mythos [image]
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@zephyr_z9
@zephyr_z9
on x
HUH 5.6 is a big boi model [image]
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@polynoamial
Noam Brown
on x
GPT-5.6 is incredibly strong and fast for coding. I hope we can make it available to everyone soon.
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@altryne
Alex Volkov
on x
OpenAI is finally doing good naming?? Sol/Terra/Luna ~ Fable/Opus/Sonnet [image]
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@openai
@openai
on x
GPT-5.6 Sol sets a new state of the art on Terminal-Bench 2.1, which tests complex command-line workflows requiring planning, iteration, and tool coordination. [image]
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@mweinbach
Max Weinbach
on x
What do we think will be available first, GPT 5.6 or Fable I miss Fable, man
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@bindureddy
Bindu Reddy
on x
> GPT 5.6 sol announced > 2x lower cost > will become generally available soon It's OpenAI's best model and is 2x lower cost! This is Fable level intelligence at 25% of Fable's cost 💕
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@can
@can
on x
let's just call it grande venti tall
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@reploritrahan
Lori Trahan
on x
Now the Trump administration is deciding company by company who gets access to the newest AI model. No law. No process. No oversight. Just appointees in Washington deciding who's in and who's out. This haphazard approach is bad for safety, national security, and American
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@mattshumer_
Matt Shumer
on x
Welcome to the new, confusing era of AI. If the government allows, you get access. If not, welp. You're shit out of luck.
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@deryatr_
Derya Unutmaz
on x
GPT-5.6 Sol & Terra are incredible models that, unfortunately, the vast majority of Americans & the rest of humanity won't yet be able to experience, thanks to the US gov's draconian restrictions in the land of the free. Hope we can talk about them soon, once the shackles are off
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@thsottiaux
Tibo
on x
New moon. New models. Welcome GPT-5.6 Sol, currently in limited preview.
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@gdb
Greg Brockman
on x
GPT-5.6 Sol preview — it's a good model: [image]
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@thefireorg
@thefireorg
on x
The White House's review of OpenAI's latest model amounts to a government-run licensing system that threatens the American people's First Amendment rights. The federal government is now claiming authority to review each new AI model — on a “voluntary” basis — before it's release…
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@bindureddy
Bindu Reddy
on x
The era of big and expensive models is over We are successfully experimenting with techniques where big models are used as teachers to small models In turn, the small models get smarter over time and perform any given task as well as Mythos
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@mweinbach
Max Weinbach
on x
GPT 5.6 comes in three sizes: Sol, Terra, Luna at 3 prices. Sol is priced at $5/30 per 1M Terra is $2.50/15 per 1M Luna is $1/6 per 1M Terra matches GPT 5.5 at half the price, and Sol will be available on Cerebras at 750 tok/s [image]
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@mweinbach
Max Weinbach
on x
GPT 5.6 Sol Max on Cerebras will be my one and only model Tokens will be burned, available usage will be 0, but it will be glorious
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@danshipper
Dan Shipper
on x
BREAKING: OpenAI announced GPT-5.6 Sol! As of today, by U.S. government directive, access is limited to only ~20 pre-approved companies and @every is not on the list. This appears to be a temporary situation while the government races to figure out a long-term policy for [image]
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@elder_plinius
@elder_plinius
on x
welcome to the semi-permanent underclass
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@levie
Aaron Levie
on x
GPT-5.6 is real and looks very strong. Going to be very strong for knowledge worker tasks that require heavy tool use and long running agents doing work. We're not hitting any walls in AI progress right now. [image]
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@teroterotero
Tero Kuittinen
on x
What are the 20 companies with Sol Ultra? Why not name them? Is government granted special access to top AI models a secret?
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@inafried
Ina Fried
on x
New @axios: OpenAI releases powerful new GPT-5.6 model but limits access at U.S. government's request https://www.axios.com/...
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@swyx
@swyx
on x
have been testing 5.6 for a while and VERY happy with it. DO NOT view this as just a “cyber” release, it is the new sota workhorse model, completely replacing opus for 80% of tasks for me > GPT-5.6 Sol is competitive with Mythos Preview using only ~1/3 of the output tokens.
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@gerritd
Gerrit De Vynck
on x
NEW detail about what kind of companies the govt nixed for getting access to GPT-5.6. OpenAI sent in a list and the admin approved most of them, besides some companies based abroad. [image]
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@adonis_singh
Adi
on x
gpt-5.6 outputs ~1/5th the tokens of mythos and gets competitive performance (on exploitbench) they are efficiency-maxxing so hard
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@benrustc
Ben Ben Ben
on x
OpenAI has unveiled GPT-5.6, claiming it surpasses Anthropic's Claude Mythos, intensifying the AI competition. This development could reshape cybersecurity applications and market dynamics between the two tech giants.
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@levie
Aaron Levie
on x
GPT-5.6 is real. And looks very strong. Importantly, OpenAI is sharing their general release philosophy for the future. Will very interesting to see how this plays out. [image]
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@arafatkatze
Ara
on x
5 months ago it was hard to score 56% on terminal bench while improving models on it and now GPT-5.6 is scoring 91%. If this doesn't convince you that we are past the exponential takeoff nothing will
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@dee_bosa
Deirdre Bosa
on x
Washington is doing more for Chinese AI than Beijing ever could First Fable now GPT 5.6
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@benjaminbadejo
Ben Badejo
on x
In light of the government's restrictions on GPT-5.6, my three priorities are as follows: (1) obtain and maintain two or more Mac Studios with as much RAM as Apple offers, as soon as they are released this fall, (2) always immediately download the latest frontier open-source
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@paultoo
Paul Buchheit
on x
This is not great news for startups It will be difficult to compete if we only ever have access to inferior models (and increases the risk of the big labs eating the whole market)
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@iridiumeagle
TravisGood
on x
The US gov is playing a dangerous game. If Chinese models soundly surpass Opus 4.8 while Mythos and GPT 5.6 are banned, the narrative around ‘distillation’ will collapse, and US AI valuations and adoption will face an existential crisis.
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@yuchenj_uw
Yuchen Jin
on x
GPT-5.6 is finally coming. GPT-5.6 Sol beats Claude Mythos 5 on TerminalBench. And on Cerebras, GPT-5.6 Sol can reach up to 750 tokens per second. Pretty fast for a model of this size. Now I just hope it can be rolled out to everyone. [image]
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@yuchenj_uw
Yuchen Jin
on x
best case: OSS surpasses Mythos, and the gov stops banning GPT-5.6/Fable. worst case: OSS surpasses Mythos, and then decides to stop being open source.
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Aaron Levie
Aaron Levie
on linkedin
As we've seen with the recent delayed releases of Anthropic's Fable model, and now GPT-5.6, we now have de facto AI regulation. …
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Vaibhav Srivastav
Vaibhav Srivastav
on linkedin
Introducing GPT-5.6: Sol, Terra and Luna. — ☀️ Sol is our strongest model yet — 🌍 Terra delivers performance competitive with GPT-5.5 at half the price …
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@maxkennerly
Max Kennerly
on bluesky
Silicon Valley has spent the last four years smothering us in AI propaganda and the net result is that the two leading providers, OpenAI and Anthropic, can only release their latest versions to people personally approved by two of Jeffrey Epstein's best friends, Trump and Lutnick…
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@elizabethjoh
Elizabeth Joh
on bluesky
!! “OpenAI said in a Friday blog post announcing its latest artificial intelligence model, GPT-5.6, or Sol, that the government would initially approve who gets access to the new release . . . .” — www.washingtonpost.com/technology/ 2...
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@caseynewton
Casey Newton
on bluesky
A year ago JD Vance was making fun of “hand wringing over AI safety” at the Paris AI Action Summit. Now his government has blocked the release of two frontier models based on the previously unknown regulatory standard of “getting the heebie jeebies”
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@caseynewton
Casey Newton
on bluesky
The same people who railed against Biden-era safety testing and disclosure requirements have now implemented an opaque licensing regime for the release of new AI models that has no known decision criteria or legal basis [embedded post]
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r/neoliberal
r
on reddit
U.S. government will decide who gets to use latest upgrade to ChatGPT
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r/technology
r
on reddit
U.S. government will decide who gets to use latest upgrade to ChatGPT
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r/ArtificialInteligence
r
on reddit
U.S. government will decide who gets to use latest upgrade to ChatGPT
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r/ChatGPT
r
on reddit
U.S. government will decide who gets to use latest upgrade to ChatGPT
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r/OpenAI
r
on reddit
OpenAI announces GPT5.6 SOL
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NullTX
Will Izuchukwu
on x
The GPT-5.6 Vetting Mandate: Why Washington's Restrictions Will Accelerate Open-Source Alternatives
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@openai
@openai
on x
We believe in broad access and plan to make GPT-5.6 Sol, Terra, and Luna generally available in the coming weeks. For now, at the request of the U.S. government, we're starting with a limited preview among a small group of trusted partners in Codex and the API.
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@cohere
@cohere
on x
Taps sign [image]
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@andrewcurran_
Andrew Curran
on x
The limited rollout of GPT-5.6 to a small group of customers has begun. It comes in three variants: GPT-5.6-Luna GPT-5.6-Terra GPT-5.6-Sol [image]
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@basedjensen
@basedjensen
on x
Gotta say boys this does not inspire lot of confidence
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@crypt0lake
@crypt0lake
on x
apart from being bad, this was expected, but we know what to do right? pool our resources
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@vijayshekhar
Vijay Shekhar Sharma
on x
If your model release isn't controlled distributed by Government, are you even a frontier - frontier lab?
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@xmihura
@xmihura
on x
os lo confirmo: Accenture es un trusted partner y están usándolo para la nueva web de la Renfe
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@iscienceluvr
Tanishq Mathew Abraham, Ph.D.
on x
This is bad. This is really bad. The US government is hampering AI innovation and accessibility. A sad day for the progress of AI. I really hope OpenAI can avoid this for future releases.
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@shakeelhashim
Shakeel
on x
Extremely interesting for OpenAI to publicly criticize the government like this. [image]
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@zephyr_z9
@zephyr_z9
on x
This is so sad
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@bgurley
Bill Gurley
on x
This is what's causing Anthropic to aggressively beg for govt protection (see below). Customers are finding cheaper alternatives. Keeping employees requires continuing ultra-rich secondaries ($$$) that are dependent on revenue growth. When you can't win on the field go to DC.
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@andrewcurran_
Andrew Curran
on x
This also means Chinese models are almost certainly going to be restricted in some way - possibly even banned - in the West. Right now they're roughly nine months behind. If every American frontier release is forced into a slow, staggered rollout from now on, they'll start
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@cvmedia
@cvmedia
on bluesky
The Trump administration reportedly asked OpenAI to delay the broader release of GPT-5.6 over national security concerns, opting for a limited rollout instead. The move raises new questions about balancing AI innovation with government oversight. #AI #Technology — ca.finance.…
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r/neoliberal
r
on reddit
Trump administration asks OpenAI to limit next model release
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@rohanpaul_ai
Rohan Paul
on x
wow. GPT-5.6 Sol is far more likely than GPT-5.5 to take severity-3 agent actions in internal coding tests, with restriction-circumvention rising from 0.00026 to 0.00251, nearly 10x. Severity-3 means actions a user would strongly object to, such as bypassing restrictions, [image]
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@mparakhin
Mikhail Parakhin
on x
Not as relevant now :-(: I had an opportunity to deeply test both Fable 5 and GPT-5.6 Max. 5.6 is clearly better than Opus 4.8 at everything (slightly faster, too, though that depends on the load). Vis-a-vie Fable, it is clearly worse on coding, but better on agentic workloads. I
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@trekedge
Daniel Steigman
on x
Been in the GPT-5.6 Sol preview and what stands out is how proactively it delegates. The new ultra mode spins up subagents and picks up tasks I didn't remember I needed. Really impressive work by the research team.
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@benedictk__
Benedict Kerres
on x
GPT-5.6 Sol preview proactively delegates. The new ultra mode spins up subagents and kind of just works. TTC scaled parallel. Research team absolutely cooking
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@derekferiancek
Derek Feriancek
on x
Sol is a noticeable step forward in coding, and is a real step function improvement for design related tasks like slide decks. Sol's adept usage of subagents is also creating emergent approaches for tackling our toughest problems. Excited to increasingly roll this out to
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@zephyr_z9
@zephyr_z9
on x
This pretty much confirms that KYC for AI model subscription is coming soon
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@bitcloud
@bitcloud
on x
Ahh yes, the trusted amongst us - the ultra elite.
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@andrewcurran_
Andrew Curran
on x
Ominous. It would be seismic if the general release of GPT-5.6 turned out to be US only. It would also almost guarantee that Fable 5 would get the same treatment. I did expect this eventually, and have said so, but not in summer 2026. Not this soon. Everything is speeding up. [im…
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@petergyang
Peter Yang
on x
So let me get this straight: 1. We publish frontier models 2. They get distilled into cheap open source models 3. US companies adopt the same open source models because they're good enough and much cheaper 4. We start gating access to frontier models What next? US companies
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@lukolejnik
Lukasz Olejnik
on x
The upshot of the US government blocking the release of new models is that nobody cares anymore. We're spared of the hype that used to be standard with new launches. Now, new models are not available anyway, and reading the blog post is not exciting.
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@scaling01
@scaling01
on x
and you thought I was joking when I was talking about the permanent underclass it's real and it's happening right now the government will from now on arbitrarily hand-pick the winners
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@ivanfioravanti
Ivan Fioravanti
on x
What will happen if GPT 5.6 won't be available worldwide? Rest of the world will go all in on GLM, MiniMax, Kimi, DeepSeek, StepFun, Mistral, HuggingFace and we'll live happily ever after in our worldwide community.
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@deryatr_
Derya Unutmaz
on x
It's okay, the US government is just trying to help Chinese open-source AI models catch up. It's for a good cause, you know. ☺️
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@haider1
Haider
on x
we're at the point where openai is teasing gpt-5.6 before it's even available to consumers all that effort to align with the administration, only to still be pressured by the same political machine this is why open source will become the only AI infrastructure people trust
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@thorstenball
Thorsten Ball
on x
This would be the biggest release so far this year. Forget Rich People Mythos, a frontier model at 750tok/s would change the game
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@webmaster
Jason
on x
Hard to believe the U.S. government shot themselves in the foot this hard. Everyone is talking about Chinese models, open source, owning hardware, and multi-model harnesses Catastrophic error
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@alexfinn
Alex Finn
on x
Unfortunately it appears the world has changed and we are never going back OpenAI just announced GPT-5.6 Sol, a model that beats Mythos at 1/3 the price It will only be in limited release to start as the government reviews it The days of wide release frontier models are over
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@kimmonismus
@kimmonismus
on x
Honestly, I no longer believe that people outside the U.S. will still have access to frontier models, and even there, access will be limited. We are now witnessing the end of public access to frontier intelligence. It is a very sad and serious turn of events.
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@bindureddy
Bindu Reddy
on x
Clearly the US is totally clueless about AI... Why ban the small version of GPT 5.6 called Luna? Clearly this model is much worse than Opus 4.8 or GPT 5.5 xHigh! Why would this be a threat to national security? TOTAL CLOWN SHOW
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@rationalaussie
@rationalaussie
on x
If frontier intelligence is not available worldwide then the US will quickly find itself with zero allies. I would sooner root for China if it gave the world state of the art models we can pay for. The US administration is retarded.
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@jinjingliang
@jinjingliang
on x
We applied for GPT-5.6 preview but got rejected OpenAI said they really wanted to give us access but right now only organizations handpicked by the government can have access to it Pretty wild how much more intense the AI regulation is in the U.S. vs in China.
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@gabriel1
Gabriel
on x
america banning ai models internationally making everyone else 40% less economically productive while the EU is still debating if DALLE-2 is ISO 335 compliant at this point im not surprised if USA would 10x gdp without EU noticing
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@dschwarz26
Dan Schwarz
on x
Ok, this may seem foolish later, but whatever, here is my conspiracy theory. I don't think OpenAI *had* to release GPT-5.6 only to trusted government partners. They said they did so “at the government's request”, but what they actually did is ask them “is it ok if we release
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@johnennis
John Ennis
on x
Gating access to frontier US models based on American citizenship would be one of the most insane competitive advantages the Trump administration could give American workers
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@josephjacks_
@josephjacks_
on x
“We're being forced by the U.S. Government to slowly release 5.6, and we don't like it” At LEAST they are saying this .. good job @sama .. but it is not enough. We are already losing to China and now we are trying to act like them, which is only reinforcing their advantage!!! [im…
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@perrymetzger
Perry E. Metzger
on x
@Miles_Brundage No one said that AI was no big deal, it has nothing to do with them being understaffed, and the question isn't whether AI development is stopped or not, that was never going to happen no matter what Doomers dreamed of, the question is whether the discourse from Do…