grok-build-0.1 API

Availability and pricing

Published contract · ready

$0.96 per 1 million input tokens; $1.92 per 1 million output tokens

Prices shown use the public default price group. Your account price and the request quote determine the amount reserved and charged.

Published verification: 2026-10-05T20:37:28.598Z

Pricing revision: rev_92e576be-9436-47d0-8786-3ddcd465bcc7

Supported inputs and limits

chat

max Input Tokens

2048

max Output Tokens

512

default Output Tokens

256

tools

Not enabled

multimodal Input

Not enabled

reasoning

Not enabled

cache

Not enabled

conversation

Enabled

structured Output

Not enabled

compact

Not enabled

streaming

Enabled

{
  "kind": "chat",
  "modes": [
    "chat"
  ],
  "qualities": [
    "standard"
  ],
  "units": [
    1
  ],
  "aspects": [],
  "resolutions": [],
  "maxReferences": 0,
  "maxInputTokens": 2048,
  "maxOutputTokens": 512,
  "defaultOutputTokens": 256,
  "protocols": [
    "chat"
  ]
}

Limitations

• Draft only until live verification and actual cost reconciliation pass. Tools, vision, explicit reasoning, structured output and compaction are disabled pending dedicated live evidence.

API request example

Use your own API key. This is a request body; asynchronous tasks also require checking their status and output.

POST /v1/chat/completions
{
  "model": "xai/grok-build-0.1",
  "messages": [
    {
      "role": "user",
      "content": "Hello"
    }
  ],
  "max_tokens": 256
}

Try this model

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