Grok 4.20 is a reasoning model from SpaceXAI 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 docsOpens in new tab
Modalities
In / Out Price
$1.25 / $2.50per 1M
Context
2.0M
Released
Mar 31, 2026
Knowledge Cutoff
Sep 2025