X

xAI API

Model API

by xAI

Hosted API for the Grok models, billed per token.

Find alternatives to xAI API

What it does

• Text generation
• Code generation
• Image generation
• Video generation

How it compares

• Grok

  Grok Models & Pricing | SpaceXAI Docs

  Official documentation · 5 Sep 2026
• Claude API

  Can I use the OpenAI or Anthropic SDK with Grok? Yes. Point your existing SDK at base URL https://api.x.ai/v1 with your SpaceXAI API key.

  Official documentation · 19 Sep 2026
• OpenAI API

  Can I use the OpenAI or Anthropic SDK with Grok? Yes. Point your existing SDK at base URL https://api.x.ai/v1 with your SpaceXAI API key.

  Official documentation · 19 Sep 2026

Sources

Pricing

Pricing page · 21 Aug 2026

Sold within

Official documentation · 30 Sep 2026

xAI's API pricing page states "All prices are in USD." and lists per-model token rates, e.g. grok-4.7 at "$2.00" input and "$6.00" output per 1M tokens, plus Imagine and Voice API rates.

Interfaces

Official documentation · 28 Sep 2026

Docs show REST calls to https://api.x.ai/v1 with a bearer API key (x.ai/api itself returned 403, so the docs subdomain was used).

Also from xAI

• Grok Application

  Assistant for chat, real-time web and X search, image generation and voice, on the web and in the X apps.

• Grok Bot AI agent

  Persistent AI teammate agents that retain context and learn from prior work across sessions, for delegated business tasks (e.g. account management).

• Grok Build AI agent

  Terminal-based coding agent powered by Grok 4.6 with plan mode, subagents, skills, plugins and MCP-server support for software development workflows.

• Grok Imagine API API service

  API for generating and editing images and video via Grok Imagine, distinct from the consumer Imagine surface inside the Grok app.

• Grokipedia Application

  AI-generated reference encyclopedia, freely browsable without sign-in, listed in x.ai's own top-level Products nav.

• Grok Voice API service

  Voice agent builder and API suite from xAI: real-time speech-to-speech conversational agents, speech-to-text transcription, text-to-speech, voice cloning and (upcoming) live translation, built on Grok.

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