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Claude 4.5 Opus
Anthropic's most capable model with breakthrough reasoning, extended thinking, and exceptional coding abilities
Overview
Anthropic's most capable model with breakthrough reasoning, extended thinking, and exceptional coding abilities
Key Capabilities
- Reasoning — suited for tasks requiring reasoning proficiency
- Code Generation — suited for tasks requiring code generation proficiency
- Code Review — suited for tasks requiring code review proficiency
- Complex Analysis — suited for tasks requiring complex analysis proficiency
- Extended Thinking — suited for tasks requiring extended thinking proficiency
- Vision — suited for tasks requiring vision proficiency
- Multi Step Planning — suited for tasks requiring multi step planning proficiency
Recommended Use Cases
- Enterprise Migration
- Complex Refactoring
- Architecture Design
- Legacy Modernization
Technical Specifications
- Context Window: 500K tokens
- Max Output Tokens: 33K tokens
- Open Weight: No
- Release Date: October 15, 2025
Pricing
$20/M input tokens, $80/M output tokens
Provider
Claude 4.5 Opus is developed by Anthropic. For the latest information, visit the official documentation.