xAI (Company)
Overview
xAI is an artificial intelligence company founded by elon-musk in March 2023. Based in San Francisco, NY. Develops the grok-models family of AI assistants. Acquired X (formerly Twitter) in March 2025. Acquired by SpaceX in February 2026.CEO: Elon Musk Founded: 2023 Valuation: ~$200-230B (Jan 2026); SpaceX acquisition valued combined entity at $1.25T Total funding: ~$45B
Key People
- Elon Musk — Founder & CEO
- Igor Babuschkin — Co-founder, technical communications
- Team includes former members of OpenAI, DeepMind, Microsoft, Tesla
Revenue
- $3.83B (2025 annualized) — 38× YoY growth from ~$100M in 2024
- X advertising + subscriptions: ~$3.3B
- xAI consumer/enterprise AI (SuperGrok, API): ~$500M
- X subscription business hit $1B ARR (Feb 2026, managed by ~30 people)
Products
- Grok assistant — grok-models on grok.com, X, iOS/Android, API
- SuperGrok — Consumer subscription tiers ($10-$300/mo)
- Grok API — Developer access at api.x.ai
- Grok Business/Enterprise — SSO, SCIM, audit controls (Dec 2025)
- PromptIDE — Developer IDE for building on xAI models
- Aurora — Text-to-image generation
Infrastructure
- colossus-supercomputer — Memphis, TN — world's largest AI supercomputer
- MACROHARDRR — Southaven, MS — $20B commitment, targeting 2 GW
- Memphis expansion — $659M, 4-story building (filed March 2026)
- Partnership with HUMAIN (Saudi Arabia) for hyperscale GPU data centers
Funding History
| Round | Date | Amount | Valuation |
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| ------ | -------- | ----------- |
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| May 2024 | $6B | — |
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| Mar 2025 | — | xAI $80B, X $33B |
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| Jul 2025 | $10B | — |
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| Early 2025 | $300M | $113B |
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| Sep 2025 | $10B | $200B |
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| Jan 2026 | $20B | $230B |
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| Feb 2026 | — |
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