Claude Opus 5
Analysis Summary
Claude Opus 5 is Anthropic's flagship model in the supplied data, with the highest listed intelligence index and strong coding and agentic measurements. It supports tool use, function calling, vision, and a 1,000,000-token context window. That combination suits work requiring extended reasoning over large inputs, software engineering, and multi-step workflows that need tools, as well as content tasks where instruction following and quality matter.
For client work, it is a strong candidate for coding agents, complex document analysis, and high-stakes content or research where depth is more important than minimizing token spend. The listed price is $5 per million input tokens and $25 per million output tokens, so it is better reserved for tasks where quality justifies premium usage. Keep a cheaper model available for routine, high-volume requests.
Assessed September 23, 2026
Editorial notes
Recency adjustment: Anthropic: Claude Opus 5.5 is the current flagship in this family. Score trimmed slightly but kept above weaker non-family models to preserve overall ranking integrity.
The DFO score ranks models on the Artificial Analysis Intelligence Index and is refreshed as new models launch. The write-up and verdict are our own. Feedback?
DFO Verdict
Recency adjustment: Anthropic: Claude Opus 5.5 is the current flagship in this family. Score trimmed slightly but kept above weaker non-family models to preserve overall ranking integrity.
Benchmarks
Artificial Analysis data refreshed Sep 30, 2026. Arena ratings from the Sep 25, 2026 text leaderboard, with style control.
How Claude Opus 5 compares
Claude Opus 5 ranks #6 of 431 AI models we track for overall intelligence, #3 of 198 for coding, #3 of 181 for agentic tasks. Its 1M-token context window is larger than 86% of the models we list. At $5.00 per million input tokens it is cheaper than 5% 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.
Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $5.00 | $0.005000 |
| Output | $25.00 | $0.025000 |
What would Claude Opus 5 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 for the hard ones. Most clients cut their estimate by 60-80%.
Talk to our teamAbout Claude Opus 5
Claude Opus 5 is Anthropic’s flagship model for demanding reasoning, coding, and long-horizon agentic work. It is particularly strong at end-to-end software tasks, code review and bug finding, visual analysis..
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Frequently asked questions about Claude Opus 5
How much does Claude Opus 5 cost?
Claude Opus 5 costs $5.00 per million input tokens and $25.00 per million output tokens.
What is the context window of Claude Opus 5?
Claude Opus 5 has a context window of 1,000,000 tokens (1M).
Is Claude Opus 5 good for coding?
On our coding benchmark index, Claude Opus 5 ranks #3 of 198 models, placing it in the top quartile of the field for code generation and debugging.
What can Claude Opus 5 do?
Claude Opus 5 supports image/vision input, tool use, and function calling.
Who created Claude Opus 5?
Claude Opus 5 is developed by Anthropic and was released on July 24, 2026.