Claude Opus 5

anthropic/claude-opus-5

Strongest Claude Opus model for coding, agents, and professional work

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Context window: 1M
Input: Document · Image · Text
Output: Text
Released: 2026-07-24

Max output: 128K
Knowledge cutoff: 2026-05
Weights: Closed
Capabilities: Attachments, Reasoning, Tool call

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Performance

Overall capability

66.2/100

Coding: 66.0
Reasoning: 65.0
Professional work: 64.3
Knowledge & language: 61.5


Arena Agent Overall	Professional work	LMArena	2026-11-08
τ³-Banking	Professional work	Mercor	2026-11-05
MysteryMechanism	Reasoning	Vals AI	2026-11-05
MLCR-AA（Artificial Analysis）Claude Opus 5 (Low)	Knowledge & language	Artificial Analysis	2026-11-05
MCP Atlasxhigh	Professional work	Scale AI	2026-11-05
AutomationBench-AAClaude Opus 5 (Max)	Professional work	Artificial Analysis	2026-11-05
ProgramBench	Coding	Vals AI	2026-11-05
Terminal-Bench Science · AAClaude Opus 5 (Max)	Reasoning	Artificial Analysis	2026-11-05

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ModelRegistry · Catalog updated 2026-11-10