Grok 4.5
SpaceXAI's smartest model with frontier performance on coding, knowledge work, and STEM.
ReasoningTool UseImplicit CachingFile InputVision (Image)Web Search
index.ts
import { streamText } from 'ai'
const result = streamText({ model: 'xai/grok-4.5', prompt: 'Why is the sky blue?'})Providers
Route requests across multiple providers. Copy a provider slug to set your preference. Visit the docs for more info. Using a provider means you agree to their terms, listed under Legal.
| Provider |
|---|
 xAI | 500K | 1.2s | 140tps | $2.00/M | $6.00/M | Read: $0.5/M Write: — | $5/K + input costs | — | +4 | 07/08/2026 |