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Claude Opus 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 Opus 5.5
Anthropic’s current default Opus for complex agentic coding and enterprise work. About 20% cheaper than Opus 5, with much cheaper cache reads. Prefer when Fable 5.1 is more than you need.
Pricing
- Input
- $4.00/1M
- Output
- $20.00/1M
- Cached input
- $0.200/1M
- Batch input
- $2.00/1M
- Verified
Official pricing source · Open main calculator · Cheaper long context models
Cache hits and refreshes are $0.20 per 1M (5% of input). Five-minute cache writes are $5 per 1M; one-hour writes are $8 per 1M. Batch is 50% of standard. Fast mode (Claude API only) is $8 / $40.
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Preselect Claude Opus 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 Opus 5.5 · Count tokens · Pricing guide
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Related tools
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Related guides
LLM API pricing · Exact vs Approx · Luna vs Haiku · Stop using tiktoken for Claude · Prompt caching explained
Sources and references
Official documentation used for definitions, counting methods, or rate cards. Always confirm critical budgets on the provider page.