Claude by Anthropic
A family of foundational AI models
5.0•1K reviews•86K followers
A family of foundational AI models
5.0•1K reviews•86K followers
We're an AI research company that builds reliable, interpretable, and steerable AI systems. Our first product is Claude, an AI assistant for tasks at any scale.
This is the 44th launch from Claude by Anthropic. View more
Claude Sonnet 5.5
Launching today
Claude Sonnet 5.5 is Anthropic’s fast, cost-efficient AI model for everyday work: coding, bug fixes, documents, slides, and design. It runs 30%+ faster than Sonnet 5, lowers task costs up to 30%, and delivers stronger coding and knowledge-work performance.
Free Options
Launch Team
Codex 3.0 by OpenAI
Claude Sonnet 5.5 is Anthropic’s faster, more cost-efficient AI model for everyday coding and knowledge work.
It tackles slow, expensive task completion by running over 30% faster than Sonnet 5 and lowering task costs by up to 30%. It combines speed, cost efficiency, and stronger performance for coding and knowledge-work tasks.
Features & Benefits
30%+ faster than Sonnet 5
Up to 30% lower task costs
Stronger coding and knowledge-work performance
Works across code, bug fixes, documents, slides, and design
Built for users working on code, bug fixes, documents, slides, and design.
Get Started
Claude Sonnet 5.5 is now available on all platforms, including Amazon Web Services, Google Cloud, and Microsoft Azure.
Developers can get started on the Claude Platform with claude-sonnet-5-5. If you run Sonnet with thinking off, you’ll need to switch to the new between_tools setting, which keeps up-front thinking off, before moving to Sonnet 5.5.
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@rohanrecommends the speed and lower cost are what stand out to me here especially for everyday coding tasks where you run the model a lot