OpenAI broadly releases GPT-5.6, and launches ChatGPT Work, an AI agent that can gather context across apps and files to create documents, on macOS and Windows

- Sol is the most powerful version, while Luna is designed for speed. … - A new “ultra” mode within Sol allows the system …

Axios 2026-07-09

Context & Ripple Effects

Coverage moved from a limited GPT-5.6 preview involving roughly 20 companies to an announced public rollout, with the model family segmented around Sol, Terra, and speed-focused Luna. The broad release makes that earlier controlled availability a product launch rather than a test phase.

ChatGPT Work extends the release beyond model access: it is positioned to use context from apps and files to produce documents on macOS and Windows. That puts the practical focus on completing multi-source work, not only answering prompts.

First-order effects

OpenAI can offer customers distinct GPT-5.6 choices for high-capability and speed-oriented tasks, while Sol's Ultra mode targets more complex workflows.
ChatGPT users on macOS and Windows gain a work-oriented agent that can draw on cross-app and file context when creating documents.

Second-order effects

The launch raises the bar for competing AI assistants: model quality alone is less differentiated when users can evaluate whether an assistant can safely turn dispersed workplace context into usable output.
For organizations, deployment decisions shift toward permissions, file access, and how reliably agent-generated documents fit existing app-based workflows.

Third-order effects

If broadly adopted, AI competition is likely to move from standalone chat interfaces toward operating-system-adjacent work agents that coordinate context, reasoning, and document production.
The earlier limited preview and disclosed government participation suggest that wider availability of more capable agentic systems may remain paired with staged access and oversight, though the eventual requirements are not established by this coverage.

The trend: This is one data point in the shift from general-purpose language models toward tiered, agentic workplace products built around access to users' existing software and files.

Discussion

@sama Sam Altman on x
obviously the best model we have ever produced, but also one of the best blog posts we have ever produced: https://openai.com/...
@mattshumer_ Matt Shumer on x
GPT-5.6-Sol one-shotted this voxel-based Manhattan. Just look at the precision... it's insane. It ran for almost a week, completely autonomously, to get the job done. [video]
@openai @openai on x
Today. 10am PT. [video]
@sama Sam Altman on x
we have heard enterprises on their concerns about AI costs, and 5.6 sol is a huge step forward for dollars-per-task, as are terra and luna
@mattshumer_ Matt Shumer on x
My GPT-5.6 Review: Second Place Has Never Been This Good
@reach_vb @reach_vb on x
Personally, I've been quite excited about max and ultra reasoning efforts with GPT 5.6 Sol and I'm excited for you all to experience it too! Quick disclaimer, ultra can put a strain on your usage limits, so exercise caution as you use it Enjoy! [image]
@lentils80 @lentils80 on x
Yeah so like I said pre-release 😉, GPT-5.6-sol is comparable or better than Claude Fable 5 in agentic tasks while being way cheaper GPT-5.6-sol-max scores 80 on Artificial Analysis Coding Agent Index, 2.8 points above Fable 5, while being way more efficient, faster and cheaper [i…
@openai @openai on x
On Agents' Last Exam, GPT-5.6 Sol sets a new high of 53.6, eclipsing Claude Fable 5 (adaptive) by 13.1 points. At medium reasoning, it beats Fable 5 by 11.4 points at roughly one-quarter the estimated cost. GPT-5.6 Terra and Luna also outperforms Fable 5 at around one-sixteenth […
@kimmonismus @kimmonismus on x
GPT-5.6 is here but also the long awayited Superapp the tl;dr The model side is impressive, but expected: GPT-5.6 Sol is strong across coding, browsing, cyber, science, long-context and agentic work. On several evals, OpenAI claims it either sets new SOTA or comes very close [ima…
@synthwavedd Leo on x
GPT-5.6 Sol is the new SOTA on ARC-AGI 3, scoring 7.78% vs the previous SOTA of 1.5% by Opus 4.8 Worth noting Fable 5 has not been benchmarked on it yet and may very well beat that
@openai @openai on x
GPT-5.6 delivers a step change in design judgment. Its stronger computer-use capabilities let it inspect and refine the rendered result—not just generate the underlying code or content—so it can catch visual and functional issues and apply finishing touches before handing the [vi…
@openai @openai on x
Sol, Terra, and Luna, our GPT-5.6 family of models, are starting to roll out now in ChatGPT, Codex, and the API. [video]
@scaling01 @scaling01 on x
What happened here? GPT-5.6-Sol is worse at math? [image]
@vaibhavsisinty Vaibhav Sisinty on x
3/ Someone compared Grok 4.5, GPT-5.6 Pro, and Fable 5 on a visual coding task. Grok impressed here, but the bigger signal is clear: frontier models are now being judged by finished interactive output, not screenshots.
@mweinbach Max Weinbach on x
After using GPT 5.6 trifecta, for knowledge work GPT 5.6 Terra and Luna are insanely good. Like as good or better than Claude across the board at a fraction of the price. Here's a quick report and little bit about this new bench we're working on! https://creativestrategies.com/ .…
@jun_song Jun Song on x
GPT-5.6 Sol got worse score than GPT-5.5 on FrontierMath. [image]
@scaling01 @scaling01 on x
GPT-5.6-Sol beating Fable 5 in both cost and performance on DeepSWE 1.1 [image]
@scaling01 @scaling01 on x
GPT-5.6 same pricing as GPT-5.5 [image]
@petergyang Peter Yang on x
OpenAI just made GPT-5.6 available to everyone, so I wanted to answer the most burning question: Is GPT-5.6 better than Claude Fable 5? I tested both models across 6 real use cases: → Frontend design (5.6 has closed the gap) → Build a 3D Star Fox-style game → Edit and
@sama Sam Altman on x
5.6 livestream going now. in addition to the model, 3 major product things. 1. ChatGPT Work—really big deal! 2. new ChatGPT desktop app 3. hosted sites
@justingorya Justin on x
GPT-5.6 released but stop focusing on SOL only. This is a output of GPT-5.6-Terra NO THINKING. Luna is also very cool. OpenAI finally fixed the Container / Card gate of GPT models. [video]
@vaibhavsisinty Vaibhav Sisinty on x
It's been a few hours since GPT-5.6 Sol started reaching early users. And people are already building insane stuff with it. Here are the wildest GPT-5.6 Sol builds I've seen so far 🧵
@andrewcurran_ Andrew Curran on x
Quote from OpenAI on the livestream. ‘Already, Sol has been transforming our research program. As one example, GPT-5.6-Sol autonomously post-trained GPT-5.6-Luna.’
@scaling01 @scaling01 on x
GPT-5.6 Sol cost efficiency looks incredible on DeepSWE-1.1 [image]
@bindureddy Bindu Reddy on x
👑 GPT 5.6 SOL LAUNCHES AS THE BENCHMARK LEADER ON LIVEBENCH AI 👑 GPT 5.6 sol crushes all benchmarks and comes #1. Fable is still the go-to model for complex multi-turn agentic loops. 5.6 is an INSANELY good model and we expect 80% of all Opus API workloads to move there [image]
@openai @openai on x
GPT-5.6 improves artifact quality across presentations, documents, and spreadsheets, and works better with your templates. These editable artifacts can be exported to the tools professionals already use and refined as part of real enterprise workflows. [image]
@matthewberman Matthew Berman on x
I've been using GPT-5.6 Sol internally for the past two months, I've spent probably 25+ billion tokens. Here's my review and comparison to Fable 5: > Let's start with the analogy because everyone seems to be giving theirs - GPT-5.6 is likely the last version of the GPT-5 [video]
@andrewkayy_ Andrew Kay on x
“The difference is in the interface: Codex is built to show you code, diffs, and PRs, while Work keeps those details abstracted away” See: Claude Cowork
@danshipper Dan Shipper on x
BREAKING: GPT-5.6 Sol is out—AND Codex has been merged into ChatGPT Desktop as ChatGPT Codex. This combo model and desktop app harness are the gold-standard for knowledge work in AI. 5.6 is powerful, fast, half the price of Fable, and my default for almost everything. We've [vide…
@synthwavedd Leo on x
GPT-5.6 is now rolling out across OpenAI surfaces It underperforms Fable on SWE-Bench Pro while beating it on Artificial Analysis's Coding Agent Index, DeepSWE and TerminalBench 2.1 [image]
@emollick Ethan Mollick on x
Now that GPT-5.6 is live I can share demos, so I am starting with the dumbest project I had it do during the preview: make a game called “Don't Discuss Goblins.” From a prompt, it generated ideas and came up with a pretty clever mechanic and graphics: https://dont-discuss-goblins…
@andrewcurran_ Andrew Curran on x
I also just watched this on the livestream, they said GPT-5.6-Sol autonomously trained GPT-5.6-Luna(!) and that the automated researcher is very close. https://x.com/...
@adxtyahq Aditya on x
Tested out GPT-5.6 to build an AI analytics dashboard with micro animations And the fucking UI is still the same AI-generated purple slop. No massive improvements. [video]
@scaling01 @scaling01 on x
OpenAI says GPT-5.6-Sol autonomously post-trained GPT-5.6-Luna
@cognition @cognition on x
GPT-5.6 is now available in Devin! On FontierCode 1.1 Extended, the GPT-5.6 family stands out for pairing strong scores with excellent cost efficiency. GPT 5.6 Sol reaches top performance at nearly half of the cost of the next best model. [image]
@reach_vb @reach_vb on x
Stoked to bring GPT 5.6 Sol, Terra and Luna to everyone! It's the first time I've felt comfortable delegating the hardest problem out there and let it cook in peace The model also has an insane ability to continue working until it is satisfied by the output All of this whilst [im…
@markpm39 Mark Miller on x
gpt 5.6 sol just refactored my entire codebase in one call. 50,235 invocations / 15 hours / 6 billion tokens. 1,000,000 new lines. 1500 brand new files. It modularized everything. Broke up monoliths. Cleaned up spaghetti. None of it worked. But boy was it beautiful. [image]
@andrewcurran_ Andrew Curran on x
GPT-5.6 System Card https://deploymentsafety.openai.com/ ...... [image]
@gregkamradt Greg Kamradt on x
GPT-5.6 Sol demonstrated the first material score (7.8%) on ARC-AGI-3 we've seen It was the first model to actually beat an ARC-AGI-3 public game (FT09) It is a step level improvement over what we've seen
@simonwillison.net Simon Willison on bluesky
... and if you want to see some of OpenAI's own pelicans they featured a 3D pelican riding a tricycle, bicycle, pony, and another pelican in their livestream this morning: www.youtube.com/live/Wq45rvP...
@simonwillison.net Simon Willison on bluesky
Notes on GPT-5.6, which includes some interesting new additions to the API (programmatic tool calling and multi-agent in particular) - plus 18 pelicans for the 6 reasoning levels and 3 new models: simonwillison.net/2026/Jul/9/ g...
r/browsers r on reddit
The ChatGPT browser is already dead
@romainhuet Romain Huet on x
Hello, GPT-5.6! ☀️🌎🌖 I've loved working with Sol, and I'm excited for you all to start building with it today! https://openai.com/...
@gdb Greg Brockman on x
GPT-5.6 is here. Sol is an incredible model, and Terra/Luna provide great performance at lower price. Great at coding, knowledge work, cybersecurity, and science with fewer tokens and at lower cost. https://openai.com/...
@conor_d_dart Conor Dart on x
GPT 5.6 is the price as GPT 5.5 but is 78.5 % stronger in different benchmarks. [image]
Kanishka Narayan MP Kanishka Narayan MP on linkedin
1/ OpenAI's 5.6 Sol was released publicly today. AI Security Institute tested it before release and you can see contributions summarised in OpenAI's system card. …
Nir Zohar Nir Zohar on linkedin
GPT-5.6 from OpenAI for Business is shaping up to be a meaningful upgrade for app building. — @Base44 is one of the launch partners. …
Adam Kallaus Adam Kallaus on linkedin
Model ML partnered with OpenAI to test GPT-5.6 before its public release. — OpenAI published our results in this article: — https://lnkd.in/... …
Alexis Moinpour Alexis Moinpour on linkedin
Today, GPT-5.6 is generally available across ChatGPT, Codex, the OpenAI API, and Amazon Bedrock. — The family includes: — ☀️ Sol — our flagship model …
Collin Bell Collin Bell on linkedin
GPT-5.6 is here. This is by far our most capable family of models yet, and our safeguard stack is similarly our most robust. …
Bruno Evangelista Bruno Evangelista on linkedin
Today we're launching GPT-5.6 - a leap in long-horizon agentic research, coding, and design. — Not just a bump in benchmarks. …
@timkellogg.me Mr. Tim on bluesky
there's no chat/instant — all of these are just different sizes of thinking models. i guess it's decided then, everything is agents now [embedded post]
r/singularity r on reddit
GPT-5.6
r/technology r on reddit
OpenAI Releases Latest Frontier Model GPT-5.6
r/accelerate r on reddit
GPT 5.6 is here!
r/OpenAI r on reddit
Sol available for Plus users in the next 24 hours
@ajambrosino Andrew Ambrosino on x
Today we're taking the first step in bringing together the ChatGPT and Codex families. We launched the Codex app five months ago this week. We've used it every day since, and it has spread across most of OpenAI and nearly every role. That's what led us to bring the app to more [i…
@prd_008 Pranav on x
There's something for everyone today, and especially for long time users of the Codex app. - Insanely good computer use - A complete in-app browser - Start chats from the Chrome extension - Attach context from ChatGPT convos to new chats, esp if you're using Pro And, you can
@deryatr_ Derya Unutmaz on x
Having ChatGPT (Work) and Codex working together in the same app with GPT-5.6, feels like AI heaven! I've been testing it for some time, and I've only just scratched the surface of what's possible now!
@lentils80 @lentils80 on x
Did OpenAI unironically rename Codex to the “ChatGPT app”? [image]
@zeffmax Max Zeff on x
While reporting a feature on OpenAI's Codex team back in February, the company was already talking about building the product that came to be known as the super app (excerpt below from that story). It seems like they've shipped the first glimpse of that today, roughly five [image…
@gdb Greg Brockman on x
We've brought together ChatGPT and Codex, in the form of ChatGPT Work: an agent for your most ambitious work. Use it from mobile or web, in addition to desktop — no need to leave your laptop cracked open!
@theo @theo on x
fwiw, I think that turning Codex into ChatGPT Desktop is a generational fumble
@openaidevs @openaidevs on x
We're bringing Codex and ChatGPT together in one desktop app. The same powerful coding agent, now alongside ChatGPT Work, with new coding workflows, a new Chrome extension, revamped in-app browser, and faster Computer Use powered by GPT-5.6. https://x.com/...
@avstorm Andreas Storm on x
Starting today, the Codex app is merging with the new ChatGPT desktop app 🔥 [image]
@thekitze @thekitze on x
i went to the download url for chatgpt work and downloaded it and got this when i clicked on the dmg???? then i updated codex and it changed to chatgpt work?? CODEX WAS SUCH A GOATED BRAND WITH MOMENTUM AND AURA BUILDUP FOR MONTHS AND THEY JUST SHIT ON IT LIKE THIS trillion dol…
@saradietschy @saradietschy on x
It's crazy to have such a strong brand and app like Codex and then just fumble it this is crazy [image]
@christianselig Christian Selig on x
tfw developers don't get work done [image]
@signulll @signulll on x
i'm curious if someone can explain this because my goal is to genuinely try to understand what is happening. why did openai post so many codex billboards & memes only to eventually abandon the brand or kinda degrade it altogether? pretend i'm a dumbass that doesn't understand
@gavmn Gavin Nelson on x
Gave our Blossom a small touch-up to launch with the new ChatGPT Mac app. [image]
@jameszmsun James Sun on x
Big drop today with 5.6, ChatGPT work, brand new desktop app, and more! The browser team's been working hard on 3 big updates for today: 1) A more fully functional in-app browser inside the new Desktop App 2) A cloud browser that the agent can use on the go inside the new work [v…
@cjzafir CJ Zafir on x
I think this is the end of “Codex” as OpenAI merged it into ChatGPT in new update. Reason: ChatGPT has 1 Billion monthly active users. Distribution is the real moat. But I had personal attachment with codex. I'm sad. [image]
@bobbigmac Bob Davies on bluesky
Bet it still can't actually answer a simple question simply or write only the three lines of code I actually said that I want. [embedded post]

Chronicles