Claude 4 Sonnet
Anthropic Released May 2025
Anthropic's next-generation balanced model with superior coding and reasoning
Claude 4 Sonnet
Anthropic • May 2025
Training Data
Up to early 2025
Claude 4 Sonnet
May 2025
Parameters
~300 billion
Training Method
Constitutional AI
Context Window
200,000 tokens
Knowledge Cutoff
April 2025
Key Features
Advanced Reasoning • Superior Coding • Hybrid Modes
Capabilities
Reasoning: Outstanding
Coding: Outstanding (72.7% SWE-bench)
Speed: Excellent
What's New in This Version
Significant upgrade with state-of-the-art coding performance
Anthropic's next-generation balanced model with superior coding and reasoning
What's New in This Version
Significant upgrade with state-of-the-art coding performance
Technical Specifications
Parameters ~300 billion
Context Window 200,000 tokens
Training Method Constitutional AI
Knowledge Cutoff April 2025
Training Data Up to early 2025
Key Features
Advanced Reasoning Superior Coding Hybrid Modes
Capabilities
Reasoning: Outstanding
Coding: Outstanding (72.7% SWE-bench)
Speed: Excellent
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