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Grok 4.20

xai/grok-4.20

xAI / Grok

Grok 4.20 is a reasoning model from xAI with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherance, delivering...

Released

2026-03-31

Context window

Weights

Closed

Modalities

TextInputImageInputDocumentInputTextOutput

Capabilities

ReasoningTool callStructuredTemperature

Providers

Kilo Gateway NanoGPT OpenRouter

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