Anthropic shipped Claude Sonnet 5 on June 30, 2026, and the framing in the announcement is unusually blunt for a model launch: it's pitched as the most agentic Sonnet yet — a model built to make plans, drive tools like browsers and terminals, and run autonomously at a level that, a few months ago...

Source: [Dev.to](https://dev.to/galian/claude-sonnet-5-just-made-running-agents-cheap-what-builders-actually-need-to-know-11j7)

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