Sonnet 5 Migration: Critical Warning Before You Upgrade
Sonnet 5 migration is not the drop-in upgrade Anthropic’s headline describes — at least not if your Sonnet 4.6 production code sets temperature, uses manual extended thinking, or has token budgets sized close to your expected output length. Claude Sonnet 5 launched on June 30, 2026, and has been available on AWS, Azure Foundry, and … Read more