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xAI

First-party API for Grok models

xAI develops the Grok family of models and sells first-party access to them through the xAI API, with text, image and video generation, and voice endpoints billed per token, image, second, or minute.

At a glance · prices collected Nov 11, 2026

What's good about xAI

  • First-party access to Grok models
  • Cached-input rates published per model
  • Batch and priority tiers for cost or latency trade-offs
  • Also available through Google Cloud Vertex AI and Microsoft Foundry

xAI LLM API prices

Pay-per-token pricing, per 1M tokens.

Prices last updated November 11, 2026

ModelInput/1MOutput/1M
$1.00$2.00
$1.25$2.50
$2.00$6.00
$2.00$6.00
$2.00$6.00

Billing & terms

Per token
Input, cached input, and output tokens billed per 1M, with a higher long-context rate above a prompt-size threshold
Batch
Discounted asynchronous processing for selected models
Priority
A premium over standard rates for higher scheduling priority
Support
Documentation, status page, and console support

Watch out for

  • Only xAI's own models are offered
  • Long-context requests above the published prompt threshold are billed at a higher rate for the whole request
  • Server-side tool calls add per-invocation charges on top of tokens

Features

Grok text models
Chat Completions and Responses endpoints for the Grok models, with configurable reasoning and tool calling
Server-side tools
Web Search, X Search, code execution, file and collection search, and remote MCP tools billed per invocation on top of tokens
Imagine and Voice APIs
Image and video generation billed per image or second, and speech-to-speech, speech-to-text and text-to-speech endpoints
Batch API
Asynchronous processing with a discount on selected models, typically completed within 24 hours
Priority Processing
Higher scheduling priority for lower latency at a premium over standard token rates
Prompt caching
Cached prompt tokens are billed at a reduced rate

Getting started

  1. Step 1

    Create an account

    Sign up on the xAI console and add credits

  2. Step 2

    Create an API key

    Generate a key in the console

  3. Step 3

    Call the API

    Send requests to api.x.ai with an OpenAI-compatible client or the xAI SDK

Where this page's facts come from

LLM API prices
  • docs.x.ai · last collected Nov 11, 2026
Profile
Reviewed Sep 28, 2026
Method
How we collect and check prices

Frequently Asked Questions

Which models does xAI serve?

Check the pricing table above for the models xAI currently serves and their per-token rates.

How do I get started with xAI?

Create an account, Create an API key, Call the API

What are xAI's main advantages?

xAI's main advantages include: First-party access to Grok models, Cached-input rates published per model, Batch and priority tiers for cost or latency trade-offs, Also available through Google Cloud Vertex AI and Microsoft Foundry.

What are xAI's limitations?

xAI's main limitations include: Only xAI's own models are offered, Long-context requests above the published prompt threshold are billed at a higher rate for the whole request, Server-side tool calls add per-invocation charges on top of tokens.

The weekly price report

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