Claude Sonnet 5.5
Anthropic model with the best combination of speed and intelligence.
From $2 in / $10 out per 1M tokensDefault model for most app features and coding agents
Cache hits $0.10 per 1M. Batch API is 50% off. Checked 2026-10-14.
Quick start
Create an API key, store it in an environment variable, and send one small test request before wiring the model into your app.
Good and not so good
- Good speed and quality balance
- Cheap cache hits
- Not the top Claude model
Use cases with Claude Sonnet 5.5
No use cases yet. Add an agent use case.