Claude Opus 5 (Fast) API Pricing
Live token cost for Claude Opus 5 (Fast) from Anthropic. Use the figures below for budgeting, then tune your exact request mix in the interactive calculator. Prices refresh every 24 hours from OpenRouter.
Capabilities
Claude Opus 5 (Fast) cost at scale
Estimated monthly cost across common production volumes. Assumes 30-day months and the request shapes shown.
| Tier | Requests / day | In / out tokens | $ / month |
|---|---|---|---|
| Hobby | 1,000 | 500 / 200 | $450.00 |
| Startup | 10,000 | 1,500 / 500 | $12,000.00 |
| Growth | 100,000 | 3,000 / 800 | $210,000.00 |
| Enterprise | 1,000,000 | 8,000 / 2,000 | $5,400,000.00 |
| Enterprise (batch mode) | 1,000,000 | 8,000 / 2,000 | $2,700,000.00 |
Compare Claude Opus 5 (Fast) vs.
Frequently asked questions
How much does Claude Opus 5 (Fast) cost?
Claude Opus 5 (Fast) costs $10.00 per 1M input tokens and $50.00 per 1M output tokens, with cached input at $1.00 per 1M tokens. A typical 1,500-token in / 500-token out request costs $0.040.
Does Claude Opus 5 (Fast) support cached input?
Yes. Claude Opus 5 (Fast) supports prompt caching at $1.00 per 1M cached input tokens. Reuse the same system prompt or context across requests to cut input cost dramatically.
What is the Claude Opus 5 (Fast) context window?
Claude Opus 5 (Fast) supports a context window of 1,000,000 tokens (1000K). Max output per response is 128,000 tokens.
What is Claude Opus 5 (Fast) good for?
Claude Opus 5 (Fast) is a good fit for general-purpose LLM tasks via the Anthropic API — chat, code, writing, summarization. For other use cases, run your specific input/output mix through the interactive calculator to compare against alternative models.