Grok Build 0.1
Grok Build 0.1 is a text and image-input model by xAI, available through the AgentSky API as xai/grok-build-0.1 at $1.10 per million input tokens and $2.20 per million output tokens, with a 256K context window.
xAI's lower-cost coding model for agentic software engineering and workflow tasks. This API model is separate from the Grok Build agent harness.
Pricing
USD per million tokens, using your plan when signed in. Each request uses the tier matching its full input context, including cached input; output tokens do not choose the tier.
| Input context (tokens) | Cache mode | Thinking | Input | Output | Cache read | Cache write |
|---|---|---|---|---|---|---|
| Up to 199,999 | Automatic | Standard | Price: $1.10 | Price: $2.20 | Price: $0.22 | — |
| 200,000–256,000 | Automatic | Standard | Price: $2.20 | Price: $4.40 | Price: $0.44 | — |
Use it
Point your client at the gateway and pass this model id. Nothing else changes.
import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://gateway.agentsky.dev/v1",
apiKey: process.env.AGENTSKY_API_KEY, // ast_…
});
const completion = await client.chat.completions.create({
model: "xai/grok-build-0.1",
messages: [{ role: "user", content: "Summarise this ticket." }],
});
console.log(completion.usage.cost); // USD, in the response