# Claude Sonnet models

Claude Sonnet has 4 versions on record. The first released was Claude Sonnet 4.5 on 29 Sep 2025, the latest Claude Sonnet 5.5 on 28 Sep 2026.

- Canonical: https://alexgetman.com/models/anthropic/families/claude-sonnet/

## Models

- [Claude Sonnet 5.5](https://alexgetman.com/models/anthropic/claude-sonnet-5-5/): 1M · $2.00 / $10.00
- [Claude Sonnet 5](https://alexgetman.com/models/anthropic/claude-sonnet-5/): 1M · $2.00 / $10.00
- [Claude Sonnet 4.6](https://alexgetman.com/models/anthropic/claude-sonnet-4-6/): 1M · $3.00 / $15.00
- [Claude Sonnet 4.5](https://alexgetman.com/models/anthropic/claude-sonnet-4-5/): 200K · $3.00 / $15.00