Grok 4.20 Beta — Retired model
Grok 4.20 Beta 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
Technical specifications
Frequently Asked Questions
Can I still use the retired Grok 4.20 Beta model?
No. Grok 4.20 Beta has been retired and is retained here only as a historical reference. See the active alternatives linked on this page.
Relay integrity checks
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View the full integrity report →Related models and links
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