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Claude Sonnet 5.5 token cost
Anthropic · context 1,000,000 tokens · tokenizer Approx
Open in cost calculator · Count tokens · Full calculator · Official pricing
When to use Claude Sonnet 5.5
Current default Sonnet for production agents: same $2/$10 sticker as Sonnet 5, faster and usually cheaper per task. Prefer over Sonnet 5 for new work after the Oct 7 cache-read cut.
Pricing
- Input
- $2.00/1M
- Output
- $10.00/1M
- Cached input
- $0.100/1M
- Batch input
- $1.00/1M
- Verified
Official pricing source · Open main calculator · Cheaper long context models
Cache hits and refreshes are $0.10 per 1M (cut from $0.20 on 2026-10-07). Five-minute cache writes are $2.50 per 1M; one-hour writes are $4 per 1M. Batch is 50% of standard.
Estimate with TokenCalculator
Preselect Claude Sonnet 5.5 in the calculator to count tokens and project request or monthly cost. Exact vs Approx follows this model's tokenizer family. See the Exact vs Approx guide for honesty rules.
Estimate cost for Claude Sonnet 5.5 · Count tokens · Pricing guide
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Sources and references
Official documentation used for definitions, counting methods, or rate cards. Always confirm critical budgets on the provider page.