Claude Opus 5 (Fast)
Analysis Summary
Claude Opus 5 Fast provides a million-token context window, vision, file input, tool use, and function calling. The feature set is relevant to complex coding, long-document analysis, agentic workflows, and client-facing content where multimodal context and API actions need to coexist.
Its $10 input and $50 output pricing makes it difficult to position for routine agency traffic. This particular Fast variant also has no independent benchmark data, so the claimed practical trade-off between speed and capability cannot be assessed from the supplied record.
Reserve it for a tightly defined pilot involving urgent, high-value tasks. A benchmarked or lower-cost model is a better default until response speed and quality are validated together.
Assessed August 9, 2026
Editorial notes
Claude Opus 5 Fast offers a million-token context, multimodal input, and tool integration, but this variant has no independent benchmark data and carries very high listed pricing.
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
DFO Verdict
Claude Opus 5 Fast offers a million-token context, multimodal input, and tool integration, but this variant has no independent benchmark data and carries very high listed pricing.
How Claude Opus 5 (Fast) compares
Its 1M-token context window is larger than 86% of the models we list. At $10.00 per million input tokens it is cheaper than 4% of comparable models.
Dark bar = input · light bar = output, scaled to the priciest peer.
1M tokens ≈ 8 full-length novels or ~2,500 pages of business documents in a single request.
Strongest on content. The pulled-in technical corner is the trade-off, and if the shape matters more than the price, this is your model.
Compare shapes side-by-side →Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $10.00 | $0.010000 |
| Output | $50.00 | $0.050000 |
What would Claude Opus 5 (Fast) cost your business?
Pick the job that looks most like yours, then fine-tune with the sliders. Estimates update live.
A website chatbot handling around 100 customer conversations a day, a few short messages each.
Full calculator with 688 models → Price Calculator
These numbers get smaller with the right architecture.
We route routine calls to cheap models and save Claude Opus 5 (Fast) for the hard ones. Most clients cut their estimate by 60-80%.
Talk to our teamAbout Claude Opus 5 (Fast)
Fast-mode variant of 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
Frequently asked questions about Claude Opus 5 (Fast)
How much does Claude Opus 5 (Fast) cost?
Claude Opus 5 (Fast) costs $10.00 per million input tokens and $50.00 per million output tokens.
What is the context window of Claude Opus 5 (Fast)?
Claude Opus 5 (Fast) has a context window of 1,000,000 tokens (1M).
What can Claude Opus 5 (Fast) do?
Claude Opus 5 (Fast) supports image/vision input, tool use, and function calling.
Who created Claude Opus 5 (Fast)?
Claude Opus 5 (Fast) is developed by Anthropic and was released on July 24, 2026.
