LATEST MODEL
Claude 4 Opus
Anthropic Released May 2025
Anthropic's most powerful model for complex reasoning tasks
Claude 4 Opus
Anthropic • May 2025
Latest
Training Data
Up to early 2025
Claude 4 Opus
May 2025
Parameters
~1 trillion
Training Method
Constitutional AI
Context Window
200,000 tokens
Knowledge Cutoff
December 2024
Key Features
Maximum Capability • Complex Reasoning • Research Grade
Capabilities
Reasoning: Maximum
Research: Outstanding
Complex Tasks: Excellent
What's New in This Version
Peak AI capability for the most demanding tasks
Anthropic's most powerful model for complex reasoning tasks
What's New in This Version
Peak AI capability for the most demanding tasks
Technical Specifications
Parameters ~1 trillion
Context Window 200,000 tokens
Training Method Constitutional AI
Knowledge Cutoff December 2024
Training Data Up to early 2025
Key Features
Maximum Capability Complex Reasoning Research Grade
Capabilities
Reasoning: Maximum
Research: Outstanding
Complex Tasks: Excellent
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