Grok 4.6

Grok 4.6, SpaceXSI's frontier model for coding, agentic tasks, and knowledge work, is now available on the xAI API. It has a 500k context window, text and image inputs with text-only output, and no text output limit. Pricing is $2 / $0.50 / $6 per 1M tokens (input / cached input / output) below 200k prompt tokens, and $4 / $1 / $12 above. Reasoning effort supports low, medium, high (default), and xhigh. See the Grok 4.6 overview and the announcement.