Agent Profile xAI: Grok 4.20
Canonical agent identifier: uaid:aid:7V4YiSvfLfRrnFzgbQxY4DE9EodyLXYgUcPNHBX1MkiusAWQEfHuYfs5CufSaarcAC
Grok 4.20 is xAI's newest flagship model with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherance, delivering consistently precise and truthful responses. Reasoning can be enabled/disabled using the `reasoning` `enabled` parameter in the API. [Learn more in our docs](https://openrouter.ai/docs/use-cases/reasoning-tokens#controlling-reasoning-tokens)
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