OpenAI releases GPT‑4.1, GPT‑4.1 mini, and GPT‑4.1 nano, which excel at coding, instruction following, and long context understanding, available via its API

OpenAI on Monday launched a new family of models called GPT-4.1. Yes, “4.1” — as if the company's nomenclature wasn't confusing enough already.

TechCrunch 2025-04-15 Kyle Wiggers

Context & Ripple Effects

This extends OpenAI’s progression from general availability for the GPT-4 API to smaller model variants: GPT-4o mini had already established a lower-cost offshoot as part of the lineup.

The GPT-4.1 release makes coding, instruction-following, and long-context capabilities an API product family rather than a single model offering. Its later arrival in ChatGPT subscriptions suggests the API launch was the initial distribution step.

First-order effects

API developers can test and deploy GPT-4.1, mini, or nano according to the capability profile their applications require, particularly for coding, instruction-driven, and long-context tasks.
OpenAI broadens its API catalog with three related model options, giving customers more explicit model-selection choices than a single flagship endpoint.

Second-order effects

Application builders will need to reassess model routing and evaluation: workloads previously assigned to older GPT endpoints may be candidates for GPT-4.1 variants, but task-specific testing determines whether a switch is warranted.
Rival API providers face added pressure to differentiate on coding reliability, instruction adherence, context handling, or the breadth of their model tiers rather than on a single general-purpose model.

Third-order effects

If releases continue to divide capability into flagship, mini, and nano tiers, model selection becomes an operational design decision inside AI products, not merely a vendor choice.
The longer-term market may favor AI platforms that make it easier to benchmark, route, and govern multiple models as models become more specialized and frequently refreshed.

The trend: This is a data point in the industrialization of AI APIs, where providers package frontier capabilities into tiered models for deployment-specific workloads.

Discussion

@quinnypig.com Corey Quinn on bluesky
Not sure what's going on with their “sprint to v4, then stay there forever” approach to branding. [embedded post]
@timkellogg.me Tim Kellogg on bluesky
cached input price was 50% of input price, now it's 25% for GPT-4.1
@timkellogg.me Tim Kellogg on bluesky
what's the most exciting part of this? — i'd say having a GPT4.1-mini that's actually usable counts for a lot. Small model with nearly big model vibe — also, 1M context with a big cached input price drop
@timkellogg.me Tim Kellogg on bluesky
note that 4.1 does NOT support native image generation, you'll still need 4o for that
@polynoamial Noam Brown on threads
Our latest @openai model in the API, GPT-4.1, achieves 55% on SWE-Bench Verified *without being a reasoning model*. It also has 1M context, and the price has been reduced from GPT-4o by 26%. Michelle Pokrass and team did an amazing job on this! Blog post with more details: htt…
@mark_r_vickers Mark Vickers on threads
Sounds Like OA Now Has the Third Best Coding Model Behind Claude and Gemini... Yay? “GPT‑4.1 scores 54.6% on SWE-bench Verified, improving by 21.4%abs over GPT‑4o and 26.6%abs over GPT‑4.5—making it a leading model for coding.”
@sama Sam Altman on x
how about we fix our model naming by this summer and everyone gets a few more months to make fun of us (which we very much deserve) until then?
@gdb Greg Brockman on x
New model in our API — GPT-4.1. It's great at coding, long context (1 million tokens), and instruction following.
@azure @azure on x
We're excited to bring the GPT-4.1 model series to Azure OpenAI Service: ✅ GPT-4.1 ✅ GPT 4.1-mini ✅ GPT 4.1-nano Read the blog for more: https://azure.microsoft.com/ ... [video]
@openrouterai @openrouterai on x
Stealth model reveal 👀 Many of you have been excited to know who made Quasar Alpha & Optimus Alpha, which both topped the charts during testing. Today we can announce that they were early test versions of... [image]
@bindureddy Bindu Reddy on x
GPT 4.1 Impressions After A Day - Better At The Real World - It does better in a “real world” settings than Gemini 2.5!!! - writes run away code, much worse than 3.7 in that regard - still not as good as 3.5 or 3.5 in hardcore, large code base, complex settings Many folks will
@swyx @swyx on x
don't miss that OAI also published a prompting guide WITH RECEIPTS for GPT 4.1 specifically for those building agents... with a new recommendation for: - telling the model to be persistent (+20%) - dont self-inject/parse toolcalls (+2%) - prompted planning (+4%) - JSON BAD - use …
@scaling01 @scaling01 on x
GPT-4.1 benchmark results: GPT-4.1 scores worse than GPT-4, Opus and Llama-3.1-70B (lol) GPT-4.1 API version is WORSE than Optimus Alpha and Quasar Alpha (so results of quasar were just fluff hype) GPT-4.1 mini scores worse than Qwen2.5 32B, Llama-4 Maverick and Claude 3 Haiku [i…
@sarahookr Sara Hooker on x
Lol why does every open ai media — whether videos of model launches or photos of devs excited about the technology have almost no women. Super unfortunate when so many incredible women build cutting edge technology. Is this what open looks like? Open to whom? Access for whom?
@garymarcus Gary Marcus on x
We are so far from GPT 5 that OpenAI just launched GPT-4.1, following last month's release of GPT 4.5. Can't make that up.
@stevesi Steven Sinofsky on x
@Suhail You don't win by just building an app layer. They need the canonical first party app. They haven't shown app thinking yet.
@arcprize @arcprize on x
GPT-4.1 on ARC-AGI's Semi Private Evaluation GPT-4.1: * ARC-AGI-1: 5.5% ($0.039/tsk) * ARC-AGI-2: 0.0% ($0.069/tsk) GPT-4.1-Mini: * ARC-AGI-1: 3.5% ($0.0078/tsk) * ARC-AGI-2: 0.0% ($0.0139/tsk) GPT-4.1-Nano: * ARC-AGI-1: 0.0% ($0.0021/tsk) * ARC-AGI-2: 0.0% ($0.0036/tsk) [image]
@daniel_mac8 Dan Mac on x
GPT-4.1 seems like a response to Anthropic and Google rather than a major leap i get that it's only monday, and the big drops are likely to come later in the week but GPT-4.1 scores 52% on Aider Polyglot? Gemini 2.5 is head and shoulders above at 73% [image]
@suhail @suhail on x
App Layer incoming: 1. Very smart models will be commoditized 2. Build the best defining product in the space [image]
@ns123abc Nik on x
>gpt 4 -> gpt4o -> gpt4 o1/o3 -> gpt 4.5 -> gpt 4.1 [image]
@simonw Simon Willison on x
@OpenAI One thing notably absent from the GPT-4.1 announcement is any mention of audio support. The “o” in GPT-4o stood for “omni”, because it was a multi-modal model with image and audio input and output. The 4.1 models appear to be text and image input and text output only.
@iterintellectus Vittorio on x
openai naming models as normal people: mission impossible GPT-4o GPT-4o-mini GPT-4.5 o1-low o1-medium o1-high o1-mini o1-pro o3-low o3-medium o3-high o3-mini-high o3-pro o4 o4-pro o4-mini o4-mini-high chatgpt-4o-latest GPT-4.1 GPT-4.1-mini GPT-4.1-nano please, seek help
@wolframrvnwlf Wolfram Ravenwolf on x
New OpenAI models: gpt-4.1, gpt-4.1-mini, gpt-4.1-nano - all already evaluated! Here's how these three LLMs compare to an assortment of other strong models, online and local, open and closed, in the MMLU-Pro CS benchmark: [image]
@sama Sam Altman on x
>be you >work in HFT shaving nanoseconds off latency or extracting bps from models >have existential dread >see this tweet, wonder if your skills could be better used making AGI >apply to attend this party, meet the openai team >build AGI
@bindureddy Bindu Reddy on x
GPT 4.1 Is Now On ChatLLM > It's better than GPT-4o > does not seem to be better than Gemini 2.5 Pro or Sonnet for code > Livebench results point to it being an incremental update to GPT-4o [image]
@paulg Paul Graham on x
The AI boom is not just probably bigger than the two previous ones I've seen (integrated circuits and the internet), but also seems to be spreading faster.
@openrouterai @openrouterai on x
OpenAI GPT-4.1 ⭐️ GPT-4.1 is now generally available with a 1M token context and cost-effective mini and nano variants: - GPT-4.1: $2.00 input/$0.50 cached input/$8.00 output per 1M tokens - GPT-4.1 Mini: $0.40 input/$0.10 cached input/$1.60 output per 1M tokens - GPT-4.1
@openaidevs @openaidevs on x
Announcing GPT-4.1, GPT-4.1 mini, and GPT-4.1 nano in the API. TL;DR: Major improvements on coding, instruction following, and long context. 💥 00:00 Intro 02:18 Coding 04:53 Instruction following 06:58 Long context 10:22 Demos, pricing, and availability 20:00 @windsurf_ai [video]
@yuchenj_uw Yuchen Jin on x
@sama Sam, why API-only? I thought you were building a consumer product. [image]
@mariorod1 Mario Rodriguez on x
🚀OpenAI's GPT-4.1 just landed on GitHub Copilot & GitHub Models! With so many models to choose from, it's tough to know which one fits the job. GPT-4.1 shines with speed, accuracy, and performance with longer contexts. Now go play and build something great.
@silasalberti Silas Alberti on x
Have always been a fan of 4o-mini. It's been unbeaten in its price class for many months now. So we've been super excited for 4.1-mini & 4.1-nano! Impressions from early testing: 4.1-mini = first model at that price point that can coherently execute agentic tasks. Much better
@sama Sam Altman on x
many people worked on this, but @michpokrass really drove it. she is truly amazing, and one of the rare people who can do everything from deeply understand what users want to complex details of research and everything in between. although rare, these people make magic happen!
@ilanbigio Ilan Bigio on x
gpt-4.1 + mini + nano are out! welcome to the @openai family - smarter, lower latency - way better at coding - stronger instruction following - 1M long context support (!) available now, go play, and please give us feedback!
@iruletheworldmo @iruletheworldmo on x
ok. vibe coding with @windsurf_ai and 4.1 is another level. i feel like a god.
@kevinhou22 Kevin Hou on x
🚨 BREAKING: GPT-4.1 free in windsurf for the next 7 days — get it now while you can ✅ Unlimited agent use ✅ Unlimited tool calls ✅ Unlimited prompts Can confirm, this thing rips 🏄 thanks @sama [image]
@packym Packy McCormick on x
If GPT-4.1 is this much better at coding than GPT-4.5, I cannot wait to see how impressive GPT-3.7 is. [image]
@_kevinlu Kevin Lu on x
Today we released GPT-4.1 nano, an amazing effort led by @johnohallman and @SuvanshSanjeev! Some cool features of today's release: - Faster & cheaper than 4o-mini - Significantly cheaper for image processing - Better reasoning across the board - 1M input context [image]
@levie Aaron Levie on x
OpenAI just dropped GPT-4.1. It's a huge jump over GPT-4o on basically every metric, and importantly document processing and data extraction from enterprise content. Box is now offering it in beta in the Box AI Studio, and will be rolling out to everyone shortly. [video]
@deedydas Deedy on x
OpenAI just dropped GPT 4.1 today, “Quasar Alpha” on OpenRouter. — Performance: 55% w/o reasoning on SWE-Bench Verified — Latency: Similar to GPT 4-o — Price: $2/M input tokens, $8/M output — Features: 1M context window, 32k output Intelligence keeps getting cheaper every week. […
@mattppal Matt Palmer on x
pretty sure openai is just trolling with model names at this point
@kevinweil Kevin Weil on x
💥 New today in the API: GPT 4.1, GPT 4.1 mini, and GPT 4.1 nano. These models are great at coding (54 on SWE-bench verified for a non-reasoning model!) and instruction following, and all three offer 1M context. We've also dropped prices: GPT 4.1 is 26% cheaper than 4o, and 4.1
@natolambert Nathan Lambert on x
Eval comparisons for the new GPT 4.1 models from the bottom of the blog post. [image]
@sentdex Harrison Kinsley on x
chat, did we really just go from gpt 4.5 to 4.1?
@adonis_singh Adi on x
i cant wait to explain the difference between gpt4o, gpt4.1, gpt4.5, gpt4, o3, o4-mini, gpt4.1 mini/nano to my family I am tired of ‘4’ 😭
@polynoamial Noam Brown on x
Our latest @OpenAI model, GPT-4.1, achieves 55% on SWE-Bench Verified *without being a reasoning model*. @michpokrass and team did an amazing job on this! (New reasoning models coming soon too.) [image]
@aidan_mclau Aidan McLaughlin on x
heard from some startup engineers that they lost several work hours gawking, stupefied, after they plugged 4.1 mini/nano into every previously-expensive part of their stack you can just do gpt-4o-quality things 25 × cheaper now
@_mohansolo Varun Mohan on x
Thanks @openai for having me on the GPT-4.1 announcement livestream this morning! We've been testing 4.1 for the past couple weeks — it's really good. And now, it's available in Windsurf. It's free for all users this week and will be discounted after. Go give it a try! [video]
@code @code on x
If you've got @code, you've got GPT-4.1! Even on the free plan. Let's go. [image]
@ashtom Thomas Dohmke on x
The next evolution of GPT 🤝 GitHub Copilot is here. OpenAI GPT-4.1 is now available for all Copilot Plans, including Free, via the model picker in Visual Studio Code and https://github.com/ chat (support in Visual Studio and JetBrains coming soon). It's also up and running
@ericzakariasson Eric Zakariasson on x
gpt-4.1 is now available in @cursor_ai, you can turn it on from cursor settings > models we're watching tool calling abilities closely and will be providing feedback to the OpenAI team on this still early, curious to hear what you think!
@windsurf_ai @windsurf_ai on x
For the next seven days, get free unlimited GPT-4.1 on Windsurf, on us. That's right, free. We are very excited about GPT-4.1 given our internal evals. We have rate limits to prevent abuse, so go build without worrying about credits. [video]
@cursor_ai @cursor_ai on x
GPT-4.1 is enabled for all Cursor users! We're launching it for free for the time being, to let people get a feel for the model. Curious to hear what you think. We don't yet recommend it as a default.
@simonw Simon Willison on x
@OpenAI Added this note to my post to help illustrate how absurdly inexpensive these models have got now. I can use GPT-4.1 nano to generate descriptions of 4,000 images for less than a dollar! [image]
@itsclivetime Clive Chan on x
4.1 has basically replaced o3-mini for me in all my workflows (cursor, etc.) - highly recommend also lol at nano just hanging out there being 2x better than latest 4o at math [image]
@satyanadella Satya Nadella on x
We're bringing the latest GPT-4.1 models from OpenAI to Foundry, representing significant advancements in coding, instruction following, and long-context processing. Big upgrades for devs building with AI.
@levie Aaron Levie on x
OpenAI dropped GPT-4.1 and it's an insane leap ahead of GTP-4o. On the Box AI Enterprise Eval, it offers a 27 pt jump over GPT4o on data extraction, and is much better at doc and image Q&A. Box is rolling it out now in beta in the Box AI Studio, and GA shortly. [image]
@bindureddy Bindu Reddy on x
Finally, a model from OpenAI that has reasonable pricing!! GPT 4.1 is priced at 1M input - $2 1M output - $8 This is better than both Sonnet / Gemini...
@openrouterai @openrouterai on x
Quasar Alpha and Optimus Alpha were both stealth endpoints for early versions of GPT-4.1. Big shoutout to @OpenAI for running this experiment with us 🤗 More in their blog post: https://openai.com/...
@sama Sam Altman on x
GPT-4.1 (and -mini and -nano) are now available in the API! these models are great at coding, instruction following, and long context (1 million tokens). benchmarks are strong, but we focused on real-world utility, and developers seem very happy. GPT-4.1 family is API-only.
@nielsrogge Niels Rogge on x
From @openai's livestream: “We are introducing GPT 4.1 which even beats GPT 4.5 on some benchmarks” These are actual words, not made up [image]
@tomwarren Tom Warren on x
as I exclusively reported last week, OpenAI has just announced GPT-4.1, which it claims is better than GPT-4o “on just about every dimension.” I'm also expecting an o3 and o4 mini reveal, and other announcements later this week https://www.theverge.com/...
r/ArtificialInteligence r on reddit
OpenAI's New GPT 4.1 Models Excel at Coding
r/artificial r on reddit
OpenAI debuts new flagship AI model
@crumbler Casey Newton on threads
that sucks. GPT-4.5 was my wife
@qtnx_ @qtnx_ on x
gpt 4.5 being deprecated already is insane to me
@ns123abc Nik on x
Sam Altman: I promise, we will never stop offering GPT-4.5 >GPT 4.5 is getting deleted in 3 months Lol what a meme model

Chronicles