Claude Sonnet 4.5 is live on OpenRouter! Substantial gains... on coding and math over Opus 4.1, but at normal Sonnet prices. More info and benchmarks 👇show more

Claude is now available in public preview in Microsoft... Foundry. Microsoft Azure customers can now use Claude Sonnet 4.5, Haiku 4.5, and Opus 4.1 to build applications and enterprise agents, and to power Claude Code.show more

Claude Sonnet 4.5 is now live on Vercel AI... Cloud: • Improved v0, Vercel Agent, and more • Available on AI Gateway + AI SDK • New open source Coding Agent Platformshow more

Gemini 3.0 pro and Opus 4.5 both models are... far ahead in terms of coding specially frontend I am thinking about next sonnet 4.7 and gemini 3.0 pro GAshow more

Just shipped: Claude Sonnet 4 & Opus 4 support 🧠

Rolling out to Visual Studio Code now: Claude Sonnet... 4.5, Anthropic's most advanced model for coding. Let us know what you think!show more

"Implement a feed-forward neural network entirely in C" Claude... Sonnet 4.5 from Anthropic, now on Replicateshow more

Sonnet 5 loses to Opus 4.8 on benchmarks. But... this happens when you pair them. Set Sonnet 5 as the implementer, Fable 5 as the advisor, Fast & cheap execution, frontier-level reasoning The real unlock isn't the model. It's the stack.show more

Everyone is dunking on Sonnet 5 for losing to... Opus 4.8 on benchmarks. They're all making the same mistake, judging a teammate by a solo test. Sonnet 5 was never built to win alone. Set the model to Sonnet 5, effort to Ultracode, and any complex task auto-kicks a dynamic workflow where it plans, spawns agents, executes and checks its own work, fast and cheap. When Fable 5 comes back, the setup gets stupid good. Fable 5 decides what to build, Sonnet 5 actually builds it. You stop paying flagship prices to do grunt work.show more

We just launched Claude Sonnet 4.5 and “Imagine with... Claude”, a 5-day preview that creates dynamic experiences for you in real-time (and the first product I’ve worked on at Anthropic!). It pioneers the concept of “model-as-backend”, using a model to not only generate interfaces on the fly but also power all the functionality behind it – all made possible by our newest model, Claude Sonnet 4.5. Here’s a "choose your own adventure" version of my founder journey, as retold by Imagine with Claude:show more

Claude Sonnet 5 is live on Higgsfield. It plans... and runs marketing asset pipelines on its own via Higgsfield MCP, at a level that used to need bigger, costlier models. It also makes agentic pipelines more efficient on Higgsfield Supercomputer.show more

Sonnet 4.5, meet Droid. After joint testing with Anthropic,... we find the strengths of Sonnet 4.5 to be: • Significantly more reliable and accurate file editing • High environmental awareness • Snappier than previous models on quick questions, not overthinking simple asks Available across Factory's web and CLI now.show more

Claude 3.7 Sonnet available now on with thinking mode!

Grok 4.1 Thinking ranks #2 on Text Arena, outperforms... the latest Claude Opus 4.5, GPT-5.2 high, Gemini 3 flashshow more

Introducing Claude Sonnet 5, our most agentic Sonnet yet.... It makes plans, uses tools like browsers and terminals, and runs autonomously at a level that just a few months ago required larger and more expensive models.show more

Sonnet 5 is here. It's worse than Opus 4.8... on nearly every benchmark... Does that mean it's useless? Absolutely not. Use it with Claude Code Dynamic Workflows! 1. /model set to Sonnet 5 2. /effort set to Ultracode 3. Any complex task will kick off a dynamic workflow This will only become more powerful when Fable is back. You'll use Fable 5 as the superintelligent advisor and Sonnet 5 as the fast and efficient implementer.show more

Thursday night vibe coding with bolt.new (via Claude 3.7... Sonnet) Rapier + three.js 👀 debug modeshow more

So... I just simply asked Manus to give me... the files at "/opt/.manus/", and it just gave it to me, their sandbox runtime code... > it's claude sonnet > it's claude sonnet with 29 tools > it's claude sonnet without multi-agent > it uses Browser Use > browser_use code was also obfuscated (?) > tools and prompts jailbreakshow more

I tested the game coding skills of Claude Opus... 4.5 and Gemini 3.0 one of them came out way better than the other guess which one was made by Claude Opus 4.5 and which one's from Gemini 3.0 Proshow more

New Claude Sonnet 5 performs at GPT 5.5 level... 6x cheaper! We gave 4 models the same prompt: build three self-contained HTML5 canvas scenes with real physics crash demos Prompts: - A car crashes into a brick wall - A wrecking ball destroys a house - A catapult throws a rock at a castle wall Outputs: Sonnet 5: 15,047 tokens, $0.15 Opus 4.8: 23,063 tokens, $0.58 Sonnet 4.6: 25,824 tokens, $0.39 GPT 5.5: 31,152 tokens, $0.94 Sonnet 5 did as well as Opus 4.8 and GPT 5.5 on all three tests. In the wrecking ball test, it beat Opus 4.8. The cable moves smoothly and every hit connects. In the catapult test, it beat GPT 5.5. The rock always lands inside the wall. Sonnet 5 still needs better detail and graphics. But it used fewer tokens than every other modelshow more

Excited to launch GPT-5 on OpenRouter! 🧠dynamic reasoning ("think... hard about this!") 🧑‍💻 much better frontend design and debugging 🏥 OpenAI's best model for health-related questions Details 👇show more