Claude Sonnet 5 is now Claude Code's default model, with a native 1M-token context window and promo pricing through Aug 31.
Change
1
Total Changes (vs Average)
0.1×
Version Type
Patch
Release Focus
Feature
Day Since Prior Release
1
Release # This Month
#28 of 28
Bug Fix Ratio
0%
Post-Release Edits
—
Change Category
This release breaks a long bugfix-heavy stretch with a major model launch, landing just 1 day after v2.1.196's 27-item fix pass.
Key Themes
1New Default Model: Claude Sonnet 5
May Help If You've Noticed
Curious why Claude Code suddenly handles much larger files or whole codebases in one go
Changes in Claude Code v2.1.197
Added1 change
•Introducing Claude Sonnet 5: now the default model in Claude Code, with a native 1M-token context window and promotional pricing of $2/$10 per Mtok through August 31. Update to version 2.1.197 for access. https://www.anthropic.com/news/claude-sonnet-5