Grok 4.20 0309 (Non-reasoning)
FrontierClosed weightsTextDirect answers
Grok family model by SpaceXAI — non-reasoning.
About the Grok family
The Grok family (Grok 1 through 4.5, including Fast, mini, Code Fast, and dated 4.20 builds) from Elon Musk's xAI lineage — reasoning-strong flagships with live X/Twitter data access and a deliberately irreverent style. Grok 4 topped several reasoning benchmarks at launch; 4.x Fast tiers trade depth for speed.
All Grok modelsHow this one is configured
This configuration runs in non-reasoning mode (direct answers, faster and cheaper).
Who makes it
SpaceXAIUnited StatesListed name for the Grok model developer (xAI lineage).More from Grok
- Grok 2 (Dec '24)
- Grok 3
- Grok 3 mini Reasoning
- Grok 3 Reasoning Beta
- Grok 4
- Grok 4 Fast (Non-reasoning)
- Grok 4 Fast (Reasoning)
- Grok 4.1 Fast (Non-reasoning)
- Grok 4.1 Fast (Reasoning)
- Grok 4.20 0309 (Reasoning)
- Grok 4.20 0309 v2 (Non-reasoning)
- Grok 4.20 0309 v2 (Reasoning)
- Grok 4.3
- Grok 4.3 (Non-reasoning)
- Grok 4.5
- Grok Beta
- Grok Build 0.1 0616
- Grok Code Fast 1
- Grok-1