Anthropic has launched Claude Sonnet 4.5, calling it its most advanced coding model yet. The AI firm says it offers upgrades in coding, reasoning, agentic operations, and domain knowledge, with the ability to run tasks autonomously for up to 30 hours. The model is available via Claude’s website, apps, API, Claude Code, and a Chrome extension.
Anthropic has launched Claude Sonnet 4.5, calling it its most advanced coding model yet. The AI firm says it offers upgrades in coding, reasoning, agentic operations, and domain knowledge, with the ability to run tasks autonomously for up to 30 hours. The model is available via Claude’s website, apps, API, Claude Code, and a Chrome extension.
