Anthropic introduces Claude Sonnet 5, a midsize model offering advanced agentic capabilities like planning and tool usage, rivaling larger models at a lower cost.
It is the default model for free and Pro plans across all subscriptions
Jul 01, 2026
09:27 am
What's the storyAnthropic has launched its latest artificial intelligence (AI) model, the Claude Sonnet 5. The new release is a more powerful and agentic version of the lab's midsize model.
"It can make plans, use tools like browsers and terminals, and run autonomously at a level that, just a few months ago, required larger and more expensive models," said Anthropic in a blog post.
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Introducing Claude Sonnet 5
