Sonnet 5 is Anthropic's most capable Sonnet-class model, with frontier performance across coding, agents, and professional work. It supports adaptive thinking with selectable reasoning effort levels (low, medium, high, max,...
| Field | Per token (USD) | Per million |
|---|---|---|
| prompt | 0.000002 | $2.00 |
| completion | 0.00001 | $10.0 |
| web_search | 0.01 | $10000 |
| input_cache_read | 0.0000002 | $0.200 |
| input_cache_write | 0.0000025 | $2.50 |
| input_cache_write_1h | 0.000004 | $4.00 |
1 answerin this database. A round opens every model's answer to the same prompt.