Claude Opus 4.5
Claude Opus 4.5 is Anthropic's flagship model for complex reasoning and multimodal tasks, with a 200K token context window and vision capabilities.
API Pricing
Cheapest on Anthropic — 42% below avg| Provider | Input / 1M | Output / 1M | Speed | TTFT | Updated |
|---|---|---|---|---|---|
| $2.50 | $12.50 | 50.8 t/s | 926ms | 4/13/2026 | |
| $2.75 | $13.75 | 50.8 t/s | 926ms | 4/14/2026 | |
| $5.00 | $25.00 | 50.8 t/s | 926ms | 4/13/2026 | |
| $5.00 | $25.00 | 50.8 t/s | 926ms | 4/14/2026 | |
| $5.00 | $25.00 | 50.8 t/s | 926ms | 4/3/2026 | |
| $5.50 | $27.50 | 50.8 t/s | 926ms | 4/14/2026 |
Prices updated daily. Last check: 4/14/2026
Model Details
General
- Creator
- Anthropic
- Family
- Opus
- Tier
- Flagship
- Context Window
- 200K
- Knowledge Cutoff
- May 2025
- Modalities
- Text, Image
Capabilities
- Tool Calling
- Yes
- Open Source
- No
- Subtypes
- Chat Completion, Code Generation
Strengths & Limitations
- 200,000 token context window for processing lengthy documents
- Multimodal capabilities supporting both text and image inputs
- Tool calling functionality for integration with external systems
- Output speed of 52.63 tokens per second for responsive interactions
- Recent knowledge cutoff of May 2025
- Flagship-tier model designed for complex reasoning tasks
- Code generation capabilities for software development workflows
- Proprietary model with no open source availability
- Time to first token of 1,265ms is slower than some alternatives
- Smaller context window compared to Claude Opus 4.6
- Positioned as older generation within the Opus family
Key Features
About Claude Opus 4.5
Common Use Cases
Claude Opus 4.5 is designed for enterprise applications requiring sophisticated reasoning across text and visual content. Its 200K context window makes it suitable for analyzing lengthy documents, research papers, or codebases, while its multimodal capabilities enable workflows involving document analysis with charts, diagrams, or images. The tool calling functionality allows integration into agentic workflows and business process automation. Given its flagship positioning, it's appropriate for complex tasks like strategic analysis, advanced coding projects, technical writing, and scenarios where reasoning quality is prioritized over speed or cost efficiency.
Frequently Asked Questions
How much does Claude Opus 4.5 cost per million tokens?
Claude Opus 4.5 pricing varies by provider and pricing type (standard vs batch). Check the pricing table above for current rates across all providers.
What is Claude Opus 4.5 best used for?
Claude Opus 4.5 excels at complex reasoning tasks, multimodal document analysis, advanced coding projects, and enterprise applications requiring sophisticated text and image understanding. Its 200K context window makes it particularly suitable for processing lengthy documents or maintaining context across extended conversations.
How does Claude Opus 4.5 compare to Claude Opus 4.6?
Claude Opus 4.6 is the newer flagship model in the Opus family. While both models share similar core capabilities like multimodal input and tool calling, Opus 4.6 represents the current generation with potential improvements in performance and capabilities, while Opus 4.5 remains a capable flagship-tier option from the previous generation.