Grok 4.20 (Reasoning)

xai/grok-4.20-0309-reasoning

Reasoning Grok for document-heavy analysis and long-horizon tool use

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Context window: 1M
Input: Document · Image · Text
Output: Text
Released: 2026-03-09

Max output: 30K
Weights: Closed
Capabilities: Attachments, Reasoning, Structured, Temperature, Tool call

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Performance

Overall capability

40.2/100

Coding: 23.0
Reasoning: 52.4
Professional work: 24.1
Knowledge & language: 54.0


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ModelRegistry · Catalog updated 2026-11-05