Grok Code Fast 1
Grok Code Fast 1 is xAI's specialized coding model optimized for fast code generation, completion, and debugging. It delivers low-latency code output within a context window of 256K tokens, tuned specifically for software development workflows.
ReasoningTool UseImplicit Caching
index.ts
import { streamText } from 'ai'
const result = streamText({ model: 'xai/grok-code-fast-1', prompt: 'Why is the sky blue?'})More models by xAI
| Model |
|---|
| 1M | 1.4s | 70tps | $1.25/M | $2.50/M | Read: $0.2/M Write: — | $5/K + input costs | — |  | 04/30/2026 | ||||
| 2M | 3.4s | 1274tps | $1.25/M | $2.50/M | Read: $0.2/M Write: — | $5/K + input costs | — | | 03/09/2026 | ||||
| 2M | 0.7s | 50tps | $0.20/M | $0.50/M | Read: $0.05/M Write: — | $5/K + input costs | — | | 09/19/2025 | ||||
| 2M | 0.2s | 193tps | $0.20/M | $0.50/M | Read: $0.05/M Write: — | $5/K + input costs | — |  | 07/09/2025 | ||||
| 2M | 0.7s | 362tps | $0.20/M | $0.50/M | Read: $0.05/M Write: — | $5/K + input costs | — | | 07/09/2025 | ||||
| 131K | 0.3s | 114tps | $0.30/M | $0.50/M | Read:$0.07/M Write:— | — | — | | 02/17/2025 |