Claude Opus 5.5 is Anthropic's flagship model for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5. It is particularly strong at multi-step changes in large codebases, code...
| Field | Per token (USD) | Per million |
|---|---|---|
| prompt | 0.000002 | $2.00 |
| completion | 0.00001 | $10.0 |
| web_search | 0.01 | $10000 |
| input_cache_read | 0.0000001 | $0.100 |
| input_cache_write | 0.0000025 | $2.50 |
| input_cache_write_1h | 0.000004 | $4.00 |