by xAI
2000K context · $0.2000/M tokens
Grok 4 Fast is xAI's latest multimodal model with SOTA cost-efficiency and a 2M token context window. It comes in two flavors: non-reasoning and reasoning. Read more about the model...
Official website
https://openrouter.ai/models/x-ai/grok-4-fast
API Documentation
https://docs.x.ai/api
