Grok Build 0.1 on API

Our latest coding model, grok-build-0.1, is now available via the xAI API in public beta.

grok-build-0.1 is a coding model specifically trained for agentic coding tasks, including web development, debugging, and MCP support. It's the same model that powers the Grok Build CLI.

The model is served at a blazing-fast 100+ tokens/second and is priced at $1/m tokens in and $2/m tokens out. Outside of coding, it’s also a speedy, economical option for general-purpose agentic and tool calling use cases.

curl https://api.x.ai/v1/responses \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $XAI_API_KEY" \
  -d '{
    "model": "grok-build-0.1",
    "input": [
        {
            "role": "user",
            "content": "Generate a clean, tasteful, and minimalist personal website design with elegant typography"
        }
    ]
}'

grok-build-0.1 performs best in agentic harness like Grok Build, Cursor, Hermes Agent, OpenClaw, Kilo Code, or OpenCode. It’s also available via OpenRouter and Vercel AI Gateway.