Anthropic is launching Claude Sonnet 5.5.
Similar to the newly released Opus 5.5, the upgraded Sonnet 5.5 AI model comes with stricter cybersecurity safeguards designed to prevent it from being misused. The mid-tier model is also 30 percent faster and 30 percent cheaper to use compared to Claude Sonnet 5, according to Anthropic.

TL;DR
- Claude Sonnet 5.5 has been released by Anthropic.
- The model includes stricter cybersecurity safeguards against misuse.
- It is 30% faster than Claude Sonnet 5.
- The model is 30% cheaper to use than Claude Sonnet 5.