Lifecycle, licence, release, pricing and hosting changes to xAI Grok 4 in the AI Agent Infrastructure Landscape. https://mrpeppersdev.github.io/agent-infrastructure-landscape/feeds/xai-grok-4--x-ai.xml 2026-10-26T00:00:00Z AI Agent Infrastructure Landscape https://mrpeppersdev.github.io/agent-infrastructure-landscape/systems/xai-grok-4--x-ai#2026-10-26-80cd27834a 2026-10-26T00:00:00Z

Latest release: “Grok 4 (2025-07); Grok 4 Heavy (2025)” → “Grok 4.7 (2026-09-21)”. Pricing: “X Premium+ ($30+/mo includes Grok); API: Grok 4 $3/$15 per 1M (premium tier); Grok 4 Heavy $30/$150 per 1M” → “API: Grok 4.7 $2 in / $6 out per 1M (prompts ‹200k tokens; $4 / $12 above); consumer via X / SuperGrok subscriptions”. Funding / ownership: “$12B+ total raised; $50B+ valuation 2024-25; Andreessen Horowitz, Sequoia, Valor, Vy Capital, Saudi PIF investors” → “xAI merged into SpaceX (announced 2026-02-02, combined ~$1T); prior $20B Series E (2026-01, ~$230B valuation)”. Deployment: “Managed-only (xAI API + X Premium); no self-hosting at Grok 4 tier (Grok 1 314B MoE Apache 2.0)” → “Managed-only — xAI API, grok.com, X apps; also via Amazon Bedrock, Microsoft Foundry, GitHub Copilot (older Grok-1 / Grok 2 weights downloadable)”. Source change: https://github.com/MrPeppersDev/agent-infrastructure-landscape/pull/258

https://mrpeppersdev.github.io/agent-infrastructure-landscape/systems/xai-grok-4--x-ai#2026-10-23-5fd0959f49 2026-10-23T00:00:00Z

License: “Apache 2.0 (Grok 1 only — 314B MoE older release); proprietary (Grok 2/3/4)” → “proprietary (Grok 4); older open weights: Grok-1 (Apache-2.0) and Grok 2 (Grok 2 Community License)”. Source change: https://github.com/MrPeppersDev/agent-infrastructure-landscape/pull/223