Grok Build 0.1 is a coding-focused model from SpaceXAI, available through the xAI API rather than as an editor or agent harness. It is aimed at high-volume, repetitive generation where cost per token dominates the decision.
Pricing read from the xAI documentation in November 2026: 1 dollar per million input tokens, 2 dollars per million output tokens, and 20 cents per million cached input tokens. Requests exceeding the 200,000 token context window are billed at different rates. The context window is 256,000 tokens, with rate limits of 37 requests per second and 10 million tokens per minute.
There is no interface and no free tier. You build the workflow around it, which is the whole trade against a product like Cursor or Claude Code.