Modelpeers
Claude Code character

Claude Code and Sonnet 5

2 products from Anthropic

Default change

Claude Sonnet 5 becomes the default model in Claude Code

Claude Code 2.1.197 made Claude Sonnet 5 the default model, with a native 1M token context window.

Who is affected:
Claude Code users who had not picked a model.
What to do:
Update to Claude Code 2.1.197 or later. Use /model to pick a different default.

Source

"Introducing Claude Sonnet 5: now the default model in Claude Code, with a native 1M-token context window"

Claude Code CHANGELOG.md (GitHub)

Published

Open the sourcegithub.com

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