Pricing, context window and lifecycle for anthropic/claude-opus-5-fast, tracked from what the vendor publishes.
| Input | $10.00 |
| Output | $50.00 |
| Cache read | $1.00 |
| Cache write | $12.50 |
| Model ID | anthropic/claude-opus-5-fast |
| Vendor | Anthropic |
| Context window | 1,000,000 tokens |
| Knowledge cutoff | - |
| End of life | none published |
include_reasoning, max_tokens, reasoning, reasoning_effort, response_format, stop, structured_outputs, tool_choice, tools, verbosity