Claude Sonnet 5.5 is Anthropic’s second model in the Claude 5.5 family, designed as a faster, more cost-efficient upgrade to Sonnet 5. It delivers 30%+ faster output with up to 30% lower cost per task, while supporting coding, AI agents, knowledge work, visual understanding, and everyday AI tasks.
| Option / usage | Provider list price | Our reference price |
|---|---|---|
| Standard · Input | $2 | $0.84 |
| Standard · Output | $10 | $4.2 |
| Standard · Cache read | $0.2 | $0.084 |
| Standard · Cache write (5m) | $2.5 | $1.05 |
| Standard · Cache write (1h) | $4 | $1.68 |
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Provider pricing source · 2026-10-03
