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 on xAI's news post.
Reasoning can be enabled/disabled using the reasoning enabled parameter in the API. Learn more in our docs
Context & Pricing
Max context
2.0M tokens
Prompt:¥0.1000/1M tokens
Output:¥0.2500/1M tokens
Tags & Capabilities
Tags
Grok
15-Day Usage Statistics
Total tokens usage across all users
AI Coding Agents Usage (15 Days)
Top 10 AI coding agents using this model
grok-4-fast-reasoning API Pricing, Context and Usage | Routin
Routin
