Anthropic: Claude Opus 4.5
Analysis Summary
Claude Opus 4.5 is an earlier Opus-generation model from Anthropic with a 200K context window, vision, tool use, and function calling. Its intelligence index sits in the good range, and the agentic index of 63.6 is meaningfully strong, making it capable for multi-step autonomous tasks. Coding benchmarks are solid without being frontier-level.
For businesses, the combination of agentic reliability, tool use, and vision makes it a practical choice for software engineering assistance, document analysis, and customer-facing workflows where answer quality matters. Instruction-following scores are moderate, so precision-critical content tasks may benefit from more recent Anthropic models.
At $5 input and $25 output, it sits at a premium price point. Newer Opus versions have since raised the bar on both intelligence and agentic performance, so teams starting fresh should evaluate the latest Anthropic flagship. Existing Opus 4.5 deployments remain capable, particularly for agentic use cases where the model has demonstrated reliability.
Assessed June 30, 2026
Editorial notes
Claude Opus 4.5 from Anthropic combines strong agentic performance, vision, tool use, and function calling with a 200K context window, well-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 4.5 compares
Anthropic: Claude Opus 4.5 ranks #26 of 385 AI models we track for overall intelligence, #27 of 293 for agentic tasks. Its 200K-token context window is larger than 65% of the models we list. At $5.00 per million input tokens it is cheaper than 7% of comparable models.
About Anthropic: Claude Opus 4.5
Claude Opus 4.5 is Anthropicās 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..
Capabilities
Performance Indices
Source: Artificial Analysis
Benchmark Scores
Intelligence
Technical
Content
Benchmark data from Artificial Analysis and Hugging Face
How does Anthropic: Claude Opus 4.5 stack up?
Compare side-by-side with other professional models.
Model Information
| OpenRouter ID |
anthropic/claude-opus-4.5
|
| Provider | anthropic |
| Release Date | November 24, 2025 |
| Context Length | 200,000 tokens |
| Max Completion | 64,000 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 4.5
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.
