Anthropic: Claude Opus 4.8
Analysis Summary
Claude Opus 4.8 is Anthropic's current flagship and the top-ranked model across intelligence, coding, and agentic indices in the full landscape. With an intelligence index of 61.4, a coding index of 56.7, and an agentic index of 76.4, it sets the benchmark for what frontier AI can deliver in 2026. Vision, file input, tool use, and function calling are all supported, and the 1M token context window allows it to reason over entire codebases or lengthy contract documents in a single session.
For businesses, Opus 4.8 is the strongest available choice for autonomous coding agents, complex multi-step reasoning, long-document analysis, and high-stakes client-facing content. Its instruction following (ifbench 0.62) is the one area where some competitors score higher, but its raw reasoning and task completion capability more than compensates. Terminal and agentic benchmark scores are best-in-class.
At $5 input and $25 output per million tokens, it is expensive but not the most expensive model in its tier. Adopt Opus 4.8 where output quality is the primary constraint, and pair it with a cheaper model for routine or high-volume calls to manage cost effectively.
Assessed June 6, 2026
Editorial notes
Claude Opus 4.8 leads the entire model landscape on reasoning, coding, and agentic performance, with vision, file input, tool use, and a 1M token context from Anthropic.
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
Performance Profile
How Anthropic: Claude Opus 4.8 compares
Anthropic: Claude Opus 4.8 ranks #2 of 377 AI models we track for overall intelligence, #4 of 314 for coding, #3 of 289 for agentic tasks. Its 1M-token context window is larger than 91% of the models we list. At $5.00 per million input tokens it is cheaper than 7% of comparable models.
About 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..
Capabilities
Performance Indices
Source: Artificial Analysis
Benchmark Scores
Intelligence
Technical
Content
Benchmark data from Artificial Analysis and Hugging Face
How does Anthropic: Claude Opus 4.8 stack up?
Compare side-by-side with other frontier models.
Model Information
| OpenRouter ID |
anthropic/claude-opus-4.8
|
| Provider | anthropic |
| Release Date | May 27, 2026 |
| Context Length | 1,000,000 tokens |
| Max Completion | 128,000 tokens |
| Status | Active |
Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $5.00 | $0.005000 |
| Output | $25.00 | $0.025000 |
Live Performance
Live endpoint metrics, refreshed every 30 minutes.
Leaderboard Categories
External Resources
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 #4 of 314 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.
