xAI Grok API Pricing 2026: Every Model, Context Window, and Cost Compared
xAI’s Grok API in 2026 offers three distinct models priced from $0.20 to $6.00 per million tokens, with a 2M-token context window on the flagship tiers — undercutting Anthropic’s Claude Opus 4.7 by 92% on input costs and GPT-5.5 by 60% on output costs at comparable capability levels. The API is fully OpenAI-compatible, ships with built-in real-time web search, and supports prompt caching to further reduce repeated-context costs. This guide covers every model, every price point, and how to calculate what you will actually spend in production. ...