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 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

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

it's f*cking insane.. Anthropic just dropped a Claude Code... setup that makes tokens up to 97% cheaper Opus brains, Sonnet bill: > Sonnet runs your session and writes the code > Haiku subagents grab the small tasks > Opus steps in only when Sonnet gets stuck > it checks the work, digs into the problem and puts Sonnet back on track $19.50 saved on every 1M tokens a Haiku 5.5 subagent writes, compared with Opus 5.5 one command sets it up: npx claude-code-templates@latest --setting model/sonnet-opus-advisor-haiku-subagents the easiest money you'll save on Claude Code this yearshow 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

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

Claude Sonnet 5.5 is now on Venice. Available anonymously.

We're giving you a $10 coupon to build on... Ori Harness this weekend What will you build? Run your favorite agent - Claude Code, Codex, DeepSeek, and more - with 500+ models, 70+ providers, all in one account, on OpenRouter Redeeming is easy: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

Introducing Claude Sonnet 5.5, the second model in the... Claude 5.5 family. It’s a clear upgrade over Sonnet 5, runs more than 30% faster, and costs up to 30% less for most 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

Grok 4.5 barely had time to enjoy first place.... Grok 4.5 Medium just took the top spot on LaurenBench with 56.9%, beating Claude Sonnet 5, Claude Opus 5, GLM 5.2 and GPT 5.6 on real world agent tasks. And Elon says Grok 4.6 arrives next week. Looks like Grok 4.5 won’t be in the spotlight for long. xAI Grok / Writer: Annette, Grok Imagine Designer: Jannéshow 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

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 5.5 is smarter, more efficient, and 30% faster... than Sonnet 5. It costs up to 30% less for most work, so your Claude Code usage goes further too. Use it for well-scoped everyday tasks like fixing bugs and quickly iterating on features.show more

MiniMax H3 Max is now live on OpenRouter: faster... and cheaper than H3. Same prompt, side by side: ready in ~30 seconds instead of ~3.5 minutes, and $0.40 for the clip instead of $0.65.show more

Introducing Claude Sonnet 5, our most agentic Sonnet yet.