Claude Opus 5 (Fast)anthropic
Bottom Line
Claude Opus 5 (Fast): $10.00/1M input, $50.00/1M output, 1.0M context. Fast-mode variant of [Opus 5](/anthropic/claude-opus-5) - identical capabilities with higher output speed at 2x pricing relative to regular Opus 5. Learn more in Anthropic's docs: https://platform.claude.com/docs/en/build-with-claude/fast-mode
API Pricing (per 1M tokens)
| Input | $10.00 |
| Output | $50.00 |
| Cache Read | — |
| Cache Write | — |
| Blended (3:1) | $20.00 |
Specs & Performance
| Context Length | 1.0M |
| Max Output | 128K |
| Intelligence | — |
| Coding | — |
| Math | — |
| Speed | — |
| TTFT | — |
| CPS Grade | — |
| Input / Output Modalities | text, image, file → text |
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FAQ
How much does the Claude Opus 5 (Fast) API cost?
Claude Opus 5 (Fast) costs $10.00/1M input tokens and $50.00/1M output tokens. Blended cost at a 3:1 ratio is about $20.00/1M tokens.
What is the context window of Claude Opus 5 (Fast)?
Claude Opus 5 (Fast) supports a 1.0M token context window with up to 128K output tokens.
Is Claude Opus 5 (Fast) worth it?
Claude Opus 5 (Fast) has a CPS grade of — (score —), intelligence index —, coding index —. Use the compare page to benchmark against rivals.