Models & Labs
Claude Code v2.1.197 Introduces Sonnet 5 Model
Claude Code Releaseshigh confidence
Why it matters
- →The 1M-token context window significantly enhances text processing capabilities.
- →Promotional pricing lowers the barrier for developers to experiment with advanced features.
- →This update strengthens Claude Code's position in the competitive AI model landscape.
Claude Code has released version 2.1.197, featuring the new Claude Sonnet 5 model as the default. This model includes a 1 million-token context window, allowing for more extensive text processing. The update is available with promotional pricing until August 31, encouraging developers to explore its capabilities. This advancement provides a more powerful tool for handling complex language tasks.
Read originalThe story around this
Earlier coverage that leads up to this article, and what followed. Lines connect each piece to the closest one after it, converging here.
How we got here
- 1Claude Opus 4.8 Model Released
Duncan Rogoff · May 29, 2026 · Related
- 2Claude Sonnet 5: Enhanced Agentic AI Model
Anthropic · June 30, 2026 · Same story
What happened next
- 3Open Source Repo Unlocks Claude Code Models
Duncan Rogoff · August 10, 2026 · Related
- 4Claude Code v2.1.257 Release
Claude Code Releases · September 2, 2026 · Same story
- 5Claude Code v2.1.284 adds Sonnet 5.5
Claude Code Releases · September 30, 2026 · Same story
- 6Anthropic Releases Claude Sonnet 5.5 and Code Mods
Matt Wolfe · October 2, 2026 · Related
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