xAI
Grok 4 Fast
Speed- and cost-optimized variant of xAI's flagship Grok 4 model.
Best for: Fast chat, long-context document reasoning, web & social search
Capabilities
- ✓reasoning
- ✓Temperature control
- ✓Web search
- ✓Adjustable reasoning effort
- ✓Image understanding
- ✓File/document understanding