Anthropic: Claude Opus 4.1
Analysis Summary
Claude Opus 4.1 is Anthropic's latest Opus-tier model, released August 2025. With an intelligence index of 33.7 and an agentic index of 52.9, it sits in the strong-to-excellent capability tier and leads this batch on agentic reliability. GPQA at 0.809, MMLU Pro at 0.880, and scicode at 0.409 confirm broad reasoning depth. Vision and file input support, combined with tool use and function calling, make it one of the most capable multimodal business models available.
For businesses, Opus 4.1 is well-suited to autonomous coding agents, long-document analysis (lcr 0.66), complex client-facing content, and multi-step agentic workflows. Instruction following (ifbench 0.55) and terminal bench performance (0.34) are strong. The 200K context window handles large codebases and lengthy contracts comfortably.
At $15 input and $75 output per million tokens, it is expensive and best reserved for high-value tasks where accuracy and depth justify the cost. Teams already in the Anthropic ecosystem will find Opus 4.1 a reliable upgrade for their most demanding workflows.
Assessed June 30, 2026
Editorial notes
Claude Opus 4.1 from Anthropic delivers an intelligence index of 33.7, agentic index of 52.9, vision support, and best-in-class instruction following, suited to complex business workflows.
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
Performance Profile
How Anthropic: Claude Opus 4.1 compares
Anthropic: Claude Opus 4.1 ranks #57 of 385 AI models we track for overall intelligence, #86 of 293 for agentic tasks. Its 200K-token context window is larger than 65% of the models we list. At $15.00 per million input tokens it is cheaper than 2% of comparable models.
About Anthropic: Claude Opus 4.1
Claude Opus 4.1 is an updated version of Anthropicās flagship model, offering improved performance in coding, reasoning, and agentic tasks. It achieves 74.5% on SWE-bench Verified and shows notable gains..
Capabilities
Performance Indices
Source: Artificial Analysis
Benchmark Scores
Intelligence
Technical
Content
Benchmark data from Artificial Analysis and Hugging Face
How does Anthropic: Claude Opus 4.1 stack up?
Compare side-by-side with other professional models.
Model Information
| OpenRouter ID |
anthropic/claude-opus-4.1
|
| Provider | anthropic |
| Release Date | August 5, 2025 |
| Context Length | 200,000 tokens |
| Max Completion | 32,000 tokens |
| Status | Active |
Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $15.00 | $0.015000 |
| Output | $75.00 | $0.075000 |
Live Performance
Live endpoint metrics, refreshed every 30 minutes.
Leaderboard Categories
External Resources
Frequently asked questions about Anthropic: Claude Opus 4.1
How much does Anthropic: Claude Opus 4.1 cost?
Anthropic: Claude Opus 4.1 costs $15.00 per million input tokens and $75.00 per million output tokens.
What is the context window of Anthropic: Claude Opus 4.1?
Anthropic: Claude Opus 4.1 has a context window of 200,000 tokens (200K).
What can Anthropic: Claude Opus 4.1 do?
Anthropic: Claude Opus 4.1 supports image/vision input, tool use, and function calling.
Who created Anthropic: Claude Opus 4.1?
Anthropic: Claude Opus 4.1 is developed by Anthropic and was released on August 5, 2025.
