Anthropic: Claude Opus 4.8
Analysis Summary
Anthropic: Claude Opus 4.8 sits in the Frontier tier on our leaderboard, ranked #1 of 564 published models on overall intelligence. At $5.00 input and $25.00 output per 1M tokens, it is among the most expensive on the market. It offers an exceptionally large context window suited to long-document workflows and supports tool use, function calling, vision, and reasoning.
Editorial notes
Claude Opus 4.8 from Anthropic leads the field on intelligence, coding, and agentic benchmarks, with a 1M token context, vision, tool use, and best-in-class instruction following for client-facing and complex business workflows.
Assessed May 28, 2026
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
Performance Profile
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
This model was released recently. Independent benchmark evaluations are typically completed within days of release ā these figures are preliminary and are likely to be updated as testing is finalised.
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 ā refreshed every 30 minutes.
