Anthropic: Claude Opus 4.8
Analysis Summary
Claude Opus 4.8 is Anthropic's flagship model for difficult reasoning, software engineering, and agentic work. It pairs leading coding performance with a one-million-token context window, vision and file input, tool use, and function calling. Instruction following, long-context handling, and multimodal support make it suitable for tasks that require both depth and dependable interaction with external systems.
Design for Online could place it on client workflows for autonomous coding assistance, large contract or knowledge-base analysis, complex research, and customer-facing content where accuracy matters more than minimum cost. Its agentic capability is strong, though production systems should still constrain tools and validate actions. The broad modality support also reduces the need to split visual and textual work across separate models.
Pricing is premium, especially for output, so it should not handle routine bulk generation by default. Adopt Opus 4.8 for high-value, high-complexity work, paired with a cheaper model for predictable volume tasks.
Assessed August 9, 2026
Editorial notes
Claude Opus 4.8 combines frontier reasoning and coding with a million-token context, vision, file input, and reliable function calling. It is built for complex agents and high-stakes client work, with premium token pricing as the main trade-off.
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
DFO Verdict
Claude Opus 4.8 combines frontier reasoning and coding with a million-token context, vision, file input, and reliable function calling. It is built for complex agents and high-stakes client work, with premium token pricing as the main trade-off.
Benchmark scores
Magenta = intelligence · Ink = technical/agentic · Cyan = content & long-context · Grey = community benchmarks. Data: Artificial Analysis, Hugging Face.
57.3 Intelligence Index·74.3 Coding Index·49.4 Agentic Index
How Anthropic: Claude Opus 4.8 compares
Anthropic: Claude Opus 4.8 ranks #9 of 425 AI models we track for overall intelligence, #11 of 198 for coding, #20 of 180 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 7% 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 business fit. The pulled-in value 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 | $5.00 | $0.005000 |
| Output | $25.00 | $0.025000 |
What would Anthropic: Claude Opus 4.8 cost your business?
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A website chatbot handling around 100 customer conversations a day, a few short messages each.
Full calculator with 704 models → Price Calculator
These numbers get smaller with the right architecture.
We route routine calls to cheap models and save Anthropic: Claude Opus 4.8 for the hard ones. Most clients cut their estimate by 60-80%.
Talk to our teamAbout Anthropic: Claude Opus 4.8
Claude Opus 4.8 is Anthropic's most capable generally available model in the Opus family. It supports text, image, and file inputs with text output, with reasoning support and a 1M-token..
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Frequently asked questions about Anthropic: Claude Opus 4.8
How much does Anthropic: Claude Opus 4.8 cost?
Anthropic: Claude Opus 4.8 costs $5.00 per million input tokens and $25.00 per million output tokens.
What is the context window of Anthropic: Claude Opus 4.8?
Anthropic: Claude Opus 4.8 has a context window of 1,000,000 tokens (1M).
Is Anthropic: Claude Opus 4.8 good for coding?
On our coding benchmark index, Anthropic: Claude Opus 4.8 ranks #11 of 198 models, placing it in the top quartile of the field for code generation and debugging.
What can Anthropic: Claude Opus 4.8 do?
Anthropic: Claude Opus 4.8 supports image/vision input, tool use, and function calling.
Who created Anthropic: Claude Opus 4.8?
Anthropic: Claude Opus 4.8 is developed by Anthropic and was released on May 27, 2026.