Claude Opus 4.6

anthropic/claude-opus-4-6

High-end Claude for difficult coding, planning, and slower expert reasoning

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Context window: 1M
Input: Document · Image · Text
Output: Text
Released: 2026-02-05

Max output: 128K
Knowledge cutoff: 2025-05-31
Weights: Closed
Capabilities: Attachments, Reasoning, Temperature, Tool call

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Performance

Overall capability

50.3/100

Coding: —
Reasoning: 51.8
Professional work: 46.4
Knowledge & language: 62.3


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ModelRegistry · Catalog updated 2026-11-05