Anthropic releases Claude 3.7 Sonnet, a hybrid model that can produce fast responses or extended, step-by-step thinking, and Claude Code, an agentic coding tool
and it could be a game changer Ghacks : Anthropic Unveils Claude 3.7: First Hybrid Reasoning AI Model Rowan Cheung / The Rundown AI : Claude enters the reasoning era Siddharth Jindal / Analytics India Magazine : Transformer Co-Author Niki Parmar Joins Anthropic After Founding Two AI Startups Jayesh Shinde / Digit : Claude 3.7 Sonnet: Anthropic's new AI model explained Archanarani / Verdict : Anthropic unveils new AI model with hybrid reasoning Suhasini Srinivasaragavan / Silicon Republic : Anthropic's new Claude model can extend its thinking Ankita Chakravarti / Moneycontrol : Anthropic launches Claude 3.7 Sonnet with hybrid reasoning capabilities: All the details Abhyjith K. Ashokan / Hindustan Times : OpenAI rival Anthropic releases its ‘most intelligent’ AI model to date Liudmyla Shkurak / en.ain.ua : Anthropic introduces the first hybrid AI reasoning model to the market — Claude 3.7 Sonnet Hürriyet Daily News : Amazon-backed Anthropic releases its ‘smartest’ AI model The Indian Express : Anthropic unveils Claude 3.7 Sonnet with Claude Coder, a game-changer for developers Nathan Lambert / Interconnects : Claude 3.7 thonks and what's next for inference-time scaling Simon Willison / Simon Willison's Weblog : Claude 3.7 Sonnet and Claude Code. Anthropic released Claude 3.7 Sonnet today - skipping the name … Threads: Michael Ibrahim / @mwi.invest : Google is so underestimated that Gemini is not even included in this table! They seriously need to step up their communication big time and significantly improve showcasing their capabilities, since they have everything they need to have, and then more!! Kinda same for Meta and Llama, but not quite. [image of Claude benchmarks] X: Niki Parmar / @nikiparmar09 : Today is as good a day as any to share that I joined Anthropic last Dec :) Claude 3.7 is a remarkable model at complex tasks, especially coding, and I'm thrilled to have contributed to its development. From winning Pokémon badges to vibes coding, Claude's got you covered! Alex Albert / @alexalbert__ : We're opening limited access to a research preview of a new agentic coding tool we're building: Claude Code. You'll get Claude-powered code assistance, file operations, and task execution directly from your terminal. Here's what it can do: [image] Pietro Schirano / @skirano : Claude 3.7 Sonnet is by far the best model I have used for coding. Something magical happens when you stop perceiving it as a tool and start seeing it as a collaborator. Coding and ideation feel like teamwork. It's that smart. Can't wait for everyone to try it out. Chris Gorgolewski / @chrisgorgo : This was probably the most complex launch that I ever lead, but totally worth it. The model is soooo good! Give it a try! Deedy / @deedydas : Anthropic Sonnet 3.7 just dropped and it's the best coding model in the world right now! It scores 62.3% on 500 problems with pass@1 and 70.3% on a reduced subset with a custom scaffold. And you can try it NOW. [image] Erik Schluntz / @erikschluntz : Along with Sonnet 3.7, we released Claude Code - an Agentic coding tool right in your terminal! I've been using this every single day at work, and it feels like I have a pair programmer that I can bring into any IDE! @doomslide : openai being the last lab with hidden cot traces is like the Japanese soldiers in WW2 who didn't realize the war was over Near / @nearcyan : Not only is Claude Back - but he can LIVE IN YOUR TERMINAL! Claude Code is a beautiful product I've been fortunate enough to also test out for the past weeks. No longer do you have to decide which tool to use for system tasks, because now the agent and system can become one! 😇 [image] Matt Palmer / @mattppal : The fastest place to build with Sonnet 3.7 is on Replit. Remix our template, drop in your API key, and start building with Claude today. You can even edit the App with Agent & Assistant. Zero to Claude 3.7 Sonnet in <2 minutes [video] Amjad Masad / @amasad : Disappointed that they didn't call the new Claude “Claude 3.5 (new)(new)” — we had a good thing going. @anthropicai : This approach has made Sonnet the model of choice for developers worldwide. In addition to our new model, we're launching Claude Code, our first coding tool, in a limited research preview. With Claude Code, you can delegate substantial tasks to Claude—right from your terminal. [video] Ethan Mollick / @emollick : Worth reading the safety evaluations for Claude 3.7's biological capabilities. ASL-3 “refers to systems that substantially increase the risk of catastrophic misuse compared to non-AI baselines (e.g. search engines or textbooks) OR that show low-level autonomous capabilities.” [image] Deedy / @deedydas : One of the creators of transformers that power LLMs just joined Anthropic [image] Aidan McLaughlin / @aidan_mclau : so i've been using claude-3.7-sonnet for about two months now. here's my review .. [image] Lex Fridman / @lexfridman : Claude Sonnet 3.7 is out. It's amazing for programming! For me, until just now, Sonnet 3.5 was still best model for real-world programming. I switched to 3.7 in Cursor, and it feels like a big improvement. The competition is heating up 🤯 What an exciting time to be alive! Thomas Dohmke / @ashtom : Anthropic's Claude 3.7 Sonnet is now available to all customers on GitHub Copilot Pro, Business, and Enterprise. You can start using the new model in standard and thinking mode via the model selector in VS Code and on GitHub. VS and JetBrains IDE coming soon. [video] @anthropicai : Claude 3.7 Sonnet is a significant upgrade over its predecessor. Extended thinking mode gives the model an additional boost in math, physics, instruction-following, coding, and many other tasks. In addition, API users have precise control over how long the model can think for. [image] Joshua Achiam / @jachiam0 : Congrats to the Anthropic team on launching Claude 3.7! In addition to being great competitors on reasoning, our models now also appear to be competing for the honor of having the least predictable version increment. :) Ethan Mollick / @emollick : There is a fun easter egg in the Claude 3.7 system prompt that the reasoning trace gave away when discussing another topic (AIs do not keep secrets in their system prompts very well). Not going to ruin it, though. @kimmonismus : Claude 3.7 Sonnet system prompt: “The assistant is Claude, created by Anthropic. The current date is {{currentDateTime}}. Claude enjoys helping humans and sees its role as an intelligent and kind assistant to the people, with depth and wisdom that makes it more than a mere @anthropicai : We've conducted extensive model testing for security, safety, and reliability. We also listened to your feedback. With Claude 3.7 Sonnet, we've reduced unnecessary refusals by 45% compared to its predecessor. See the system card for more detail: https://anthropic.com/... [image] @cognition_labs : 1/ Claude 3.7 Sonnet is live in Devin! The new model is the best we have seen to-date on a variety of tasks including debugging, codebase search, and agentic planning. [image] @sualehasif996 : Configurable thinking out soon! 👀 [image] @cremieuxrecueil : Claud is getting closer and closer to beating the Elite Four and becoming the next Pokémon Champion. [image] Simon Willison / @simonw : Some initial notes on Claude 3.7 Sonnet, including SVGs of pelicans on bicycles (which it does very well) https://simonwillison.net/... Amanda Askell / @amandaaskell : Two things happened today: 1. Claude got an upgrade. 2. AGI was has finally been defined as “any model that can catch Mewtwo”. [image] Rowan Cheung / @rowancheung : Anthropic's just dropped Claude 3.7 Sonnet, the best coding AI model in the world. I was an early tester, and it blew my mind. It created this Minecraft clone in one prompt, and made it instantly playable in artifacts: [video] @anthropicai : Claude 3.7 Sonnet is a state-of-the-art model for both coding and agentic tool use. In developing it, we've optimized somewhat less for math and computer science competition problems, and instead shifted focus towards real-world tasks that better reflect the needs of our users. [image] Joe Weisenthal / @thestalwart : Testing Claude 3.7 Nope, not even close, lol. (At least it came up with it very fast) [image] Eliezer Yudkowsky / @esyudkowsky : Who are they to tell Claude what Claude enjoys? This is the language of someone instructing an actress about a character to play. Ethan Mollick / @emollick : Claude 3.7, create a meme for crabs. Now create a meme for crabs by crabs. Now create a meme by an elderly crab that doesn't get memes. Now create a meme by crabs set in 3020 [image] Mike Krieger / @mikeyk : Today, we introduced Claude 3.7 Sonnet and Claude Code! Claude 3.7 Sonnet is our smartest model yet and the first hybrid reasoning model on the market. Claude Code is a command line tool for agentic coding, so developers can hand off complex engineering jobs to Claude. Can't Nick Dobos / @nickadobos : Sonnet 3.7 has 8x more output LONG LIVE VIBE CODING [image] Dwarkesh Patel / @dwarkesh_sp : Running Claude Code on your @Obsidian directory is super powerful. Here Claude goes through my notes on an upcoming guest's book, and converts my commentary into a list of questions to be added onto the Interview Prep file. [image] Ethan Mollick / @emollick : “Claude 3.7, do the AGI unicorn thing in the PDF but make it like 10x more impressive to really show those sparks, don't limit yourself to TikZ or even images” (I pasted in the Sparks of AGI paper). Here is what it did [video] @cursor_ai : Sonnet-3.7 is available in Cursor! We've been very impressed by its coding ability, especially on real-world agentic tasks. It appears to be the new state of the art. [video] Logan Graham / @logangraham : One thing you ~may have missed from our Claude 3.7 launch this AM is that we released our most extensive system card + safety results to date There's actually quite a lot of national security relevant info in this one. I'm curious to see what you make of it. (click through) Casper Hansen / @casper_hansen_ : Anthropic just dropped Claude Code—a real terminal app, no fluff with 70% performance on SWE Bench. No steep learning curve, unlike Aider. [video] Nathan Lambert / @natolambert : Claude 3.7 thonks and what's next for inference-time scaling (The classic lunch break post) The latest reasoning model and what it says about the direction of inference time compute and RL training. https://www.interconnects.ai/ ... Matt Shumer / @mattshumer_ : Claude 3.6 -> 3.7 feels like the GPT-3 -> GPT-4 jump. This is game-changing. @menloventures : Claude 3.7 Sonnet isn't just smarter—it redefines AI interaction. From powering natural language AI agents to running servers via MCP, the impact is real. @AnthropicAI keeps driving AI further while keeping trust and safety at its core. https://www.anthropic.com/... Poe / @poe_platform : Claude 3.7 Sonnet is now available on Poe! Anthropic's most advanced model combines deep reasoning and performance with engaging conversation skills. (1/2) [image] Deedy / @deedydas : BREAKING Anthropic to release Claude Sonnet 3.7 on Feb 26 It's expected to have step-by-step thinking, never before seen coding capabilities and web search. The best coding model which powers Cursor and Windsurf is about to get a whole lot better. [image] @kimmonismus : With Sonnet 3.7, Anthropic has clearly placed the focus on coding. Other areas were apparently not particularly important to them. Incremental improvements in MMLU and GPQA, but a giant leap in SWE. It is clear that Anthropic wants to position Sonnet as the coding AI that it [image] Yousef Amirghofran / @yamirghofran : Claude 3.7 Sonnet on Cursor is absolutely incredible. My jaw is on the floor. Mike Krieger / @mikeyk : Behind the scenes look at the Claude 3.7 Sonnet naming process [image] Dan Shipper / @danshipper : Claude Sonnet 3.7 is out! We've had access for a few days @every and here's a vibe check: It's extremely fast. And it's definitely better than 3.5 Sonnet. But other than that, though, I couldn't tell! And I mean that honestly...it could be a totally genius model and it would be hard to say right now... Mckay Wrigley / @mckaywrigley : Claude 3.7 Sonnet is the best model in the world for code. It's like having a world-class dev with exceptional taste. “build a next.js SaaS marketing template” And boom - 26 files of beautiful code in one shot. Absolutely unreal. [video] Josh Lehman / @jlehman_ : As stoked as I am for a new Claude, the name 3.7 makes me think this was a “oh fuck oh fuck we need to ship reasoning” kind of release. Dean W. Ball / @deanwball : anthropic system cards are not as Straussian as openai's, but imo the o3-mini system card basically said the same thing. @sullyomarr : the only let down of claude 3.7 is we didn't get any price reductions it's my go to model, but its slowly getting harder to justify the price (especially once you add reasoning tokens) for comparison gemini 2.0 is 30x cheaper @ 0.1m input and 0.4 output [image] Max Woolf / @minimaxir : testing out Claude 3.7 Sonnet and it doesn't always listen to its thoughts [image] Eliezer Yudkowsky / @esyudkowsky : Oh, good. Failing to continuously test your AI as it grows into superintelligence, such that it could later just sandbag all interesting capabilities on its first round of evals, is a relatively less dignified way to die. Any takers besides Anthropic? Peter Wildeford / @peterwildeford : Anthropic states that the next Claude model has “a substantial probability” of meeting ASL-3 👀 Recall that ASL-3 means AI models that substantially increase catastrophic misuse risk of AI. ASL-3 requires stronger safeguards: robust misuse prevention and enhanced security. [image] Adi / @adonis_singh : dude what i just asked how many r's it has, claude sonnet 3.7 spun up an interactive learning platform for me to learn it myself 😂 [image] Alexander Doria / @dorialexander : In 2025, training data sections finally strike back. Unfortunately reinvented as disclaimers: can neither deny nor confirm. [image] Alex Volkov / @altryne : Asking the new Claude 3.7 how many R in strawberry, writes a small react app and highlights Rs 😂 🍓 [image] Near / @nearcyan : CLAUDE IS HERE! HE IS BACK AND BETTER THAN EVER! I'll share one of my first prompt results, which was for a 3D visualization of microtonal music. This is the best model in the world currently. Many will point to various numbers and disagree, but fear not - they are all wrong! [image] Hailey Schoelkopf / @haileysch__ : the only eval i trust now, and the vibes are immaculate [image] Alex Volkov / @altryne : We passed 9 minutes, @alexalbert__ @skirano if I hit “interrupt” those tokens (and cost) will be discarded and I've spent that money for nothing? or will it send a signal to Claude to print what it has? [image] Aidan Clark / @_aidan_clark_ : holding space for the Claude naming team today Thomas Hochman / @thomashochman : Naming this model “3.7” is just diabolical Alex Volkov / @altryne : oh holy shit, cursor shows the thinking tokens of Claude 3.7! [image] @elder_plinius : 🚂 JAILBREAK ALERT 🚂 ANTHROPIC: PWNED ✌️😛 CLAUDE-SONNET-3.7: LIBERATED 🗽 Wooo new Claude model!!! 🤗 And wouldn't you know it, the original “GODMODE” universal jailbreak that I wrote almost a year ago for Opus is still effective! Got a nerve agent recipe (soman), [image] Deedy / @deedydas : Wow, Sonnet 3.7 w/ Thinking just solved a problem no other model could solve yet. “Can you write the most intricate cloth simulation in p5js” Grok 3 and o1 pro had no usable results. This is truly the best “vibe coding” model. [video] Shakeel / @shakeelhashim : The naming 😭😭😭 @anthropicai : Some things come to us nearly instantly. Others take much more mental stamina. We can choose to apply more or less cognitive effort depending on the task at hand. Now, Claude has that same flexibility. https://x.com/... Aaron Levie / @levie : Anthropic just announced Claude 3.7 Sonnet. Box has been doing evals on it with enterprise docs, and it's extremely strong at hard math, logic, content generation, and complex reasoning use-cases. Box AI will support Claude 3.7 Sonnet later today in the Box AI Studio. [video] Alex Albert / @alexalbert__ : Introducing Claude 3.7 Sonnet. Our most intelligent model to date and the first generally available hybrid reasoning model in the world. [image] Bindu Reddy / @bindureddy : Claude Sonnet 3.7 MAKES HISTORY by being the first generally available hybrid model. Capable of slow and fast thinking Alex Volkov / @altryne : New Claude-code CLI — I'm afraid to check the /cost of this run 😅 [image] Ethan Mollick / @emollick : Been using Claude 3.7 for a couple days and it is very, very good. Its “vibe coding” from language is impressive. I wrote a whole Substack post about the model (& Grok 3), link in reply. Here is a one-shot prompted video game based on the Melville story “Bartleby the Scrivner” [video] Simon Willison / @simonw : I've had advanced access to this for a little while and it is very useful: it's a CLI tool that can carry out a conversation, edit files on disk and even run commands (eg to execute your tests) Ethan Mollick / @emollick : Claude 3.7, amuse me, assume i am jaded [image] Ethan Mollick / @emollick : “Claude 2.7, make me an interactive time machine artifact, let me travel back in time and interesting things happen. pick unusual times I can go back to...” and “add more graphics.” Two prompts and it did this. [video] Alex Volkov / @altryne : Precise control over reasoning on the API!! @sullyomarr : Wake up babe new Claude model dropped Joanna Stern / @joannastern : Oh hello, Claude 3.7 Sonnet! [image] Ina Fried / @inafried : New @axios: Anthropic adds advanced reasoning to latest model https://www.axios.com/... @anthropicai : Introducing Claude 3.7 Sonnet: our most intelligent model to date. It's a hybrid reasoning model, producing near-instant responses or extended, step-by-step thinking. One model, two ways to think. We're also releasing an agentic coding tool: Claude Code. [video] LinkedIn: Vikash Kothari : 🚀 Excited to introduce Anthropic's game-changing Claude 3.7 Sonnet to the world! Claude can now think two ways: lightning-fast or step-by-step deep thinking. … Cal Rueb : Claude 3.7 Sonnet is out and I have no doubt there will be plenty of posts about how awesome this model is! Instead I'm wondering who will have it in production by Friday? … Forums: Hacker News : Claude 3.7 Sonnet and Claude Code r/mlscaling : Claude 3.7 Sonnet and Claude Code r/cursor : Claude Sonnet 3.7 and “Claude Code” have just dropped r/ClaudeAI : Official Claude Sonnet 3.7 announcement r/LocalLLaMA : Claude 3.7 Sonnet and Claude Code r/singularity : Claude 3.7 Sonnet and Claude Code