Model
Supported Endpoints
All three API formats are supported:- Chat Completions —
POST /v1/chat/completions - Responses —
POST /v1/responses - Messages —
POST /v1/messages
xAI’s Grok 4.5 language model. See supported inputs, parameters, pricing, response fields, and API examples.
POST /v1/chat/completionsPOST /v1/responsesPOST /v1/messages