Anthropic: Claude Opus 4.5
Analysis Summary
Claude Opus 4.5 from Anthropic supports text, image, and file inputs, with tool use, function calling, and a 200K context window. Its available intelligence index is below the strongest measured models in the wider field, and the provided record contains no detailed coding or instruction-following results. Its product positioning and workflow features nevertheless make it relevant for content and analysis pilots.
For client work, the context window and input flexibility are useful for long briefs, source documents, and multi-step tasks that connect to tools. The listed prices, $5 for input and $25 for output, place it in a premium cost posture, so reserve it for work where answer quality warrants that expense. It is a reasonable option for careful editorial or document workflows, but teams should compare it with newer benchmarked Claude models before making it their default.
Assessed September 23, 2026
Editorial notes
Claude Opus 4.5 offers image and file input, tool use, function calling, and a 200K context window for demanding writing and analysis; its premium listed prices favor selective use.
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
Claude Opus 4.5 offers image and file input, tool use, function calling, and a 200K context window for demanding writing and analysis; its premium listed prices favor selective use.
Benchmarks
Artificial Analysis data refreshed Oct 18, 2026. Arena ratings from the Oct 13, 2026 text leaderboard, with style control.
Artificial Analysis has not published coding or agentic results for Anthropic: Claude Opus 4.5 yet. Until it does, the model sits below tested models on the Coding and AI Agents lists.
How Anthropic: Claude Opus 4.5 compares
Anthropic: Claude Opus 4.5 ranks #60 of 439 AI models we track for overall intelligence. Its 200K-token context window is larger than 56% 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 Anthropic: Claude Opus 4.5 cost your business?
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A website chatbot handling around 100 customer conversations a day, a few short messages each.
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Talk to our teamAbout Anthropic: Claude Opus 4.5
Claude Opus 4.5 is Anthropic’s frontier reasoning model optimized for complex software engineering, agentic workflows, and long-horizon computer use. It offers strong multimodal capabilities, competitive performance across real-world coding and..
Frequently asked questions about Anthropic: Claude Opus 4.5
How much does Anthropic: Claude Opus 4.5 cost?
Anthropic: Claude Opus 4.5 costs $5.00 per million input tokens and $25.00 per million output tokens.
What is the context window of Anthropic: Claude Opus 4.5?
Anthropic: Claude Opus 4.5 has a context window of 200,000 tokens (200K).
What can Anthropic: Claude Opus 4.5 do?
Anthropic: Claude Opus 4.5 supports image/vision input, tool use, and function calling.
Who created Anthropic: Claude Opus 4.5?
Anthropic: Claude Opus 4.5 is developed by Anthropic and was released on November 24, 2025.