Claude Sonnet 5 becomes default in Claude Code, offers 1M-token context and promo pricing

Core summary

One sentence to understand this update

Claude Code updated to v2.1.197, making Claude Sonnet 5 the new default model with a native 1M-token context window and promotional pricing until August 31.

Impact & opportunity

What this could mean

Developers using Claude Code can now leverage Sonnet 5's large context window and temporary reduced pricing for more complex and cost-effective coding tasks.