Grok 4

grok-4
Grok 4 is xAI's latest reasoning model with a 256k context window.
Intelligence
Speed
Price
$2.00 â€ĸ $10.00
Cache Price
$2.00 â€ĸ $2.00
Input
Output

Specifications

Context Window
256K
Max Output Tokens
100K
Announced Date
2025-07-09
Released Date
2025-07-09
Knowledge Cutoff
2024-12-31

Modalities

Text

Input and output

Image

Not supported

Audio

Not supported

Video

Not supported

Endpoints

OpenAI Compatible
Chat Completions
/v1/chat/completions
Responses
/v1/responses
Embeddings
/v1/embeddings
Image Generation
/v1/images/generations
Image Edit
/v1/images/edits
Videos
/v1/videos
Claude Compatible
Messages
/v1/messages
Gemini Compatible
Generate Content
/v1beta/models/{model}:{operator}