We've switched Amp's primary model to Claude Sonnet 4.5, the latest release from Anthropic.
In our testing of Sonnet 4.5 in Amp, we found noticeable improvements for coding, including:
- Reduced sycophancy
- Higher success rates for file edits
- Improved reasoning during complex tasks like debugging
The switch is automatic. Update to the latest release of Amp's VS Code extension or CLI to start using Claude Sonnet 4.5.