Claude Sonnet 4

Retired

anthropic/claude-sonnet-4

Claude Sonnet 4 significantly enhances the capabilities of its predecessor, Sonnet 3.7, excelling in both coding and reasoning tasks with improved precision and controllability. Achieving state-of-the-art performance on SWE-bench (72.7%),...

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Context window: 1M
Input: Document · Image · Text
Output: Text
Released: 2025-05-22

Max output: 64K
Knowledge cutoff: 2025-01-31
Weights: Closed
Capabilities: Reasoning, Temperature, Tool call

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ModelRegistry · Catalog updated 2026-09-29