xAI
Elon Musk's frontier-AI lab — Grok, Colossus, and a merger into SpaceX.
▶ Founder shortScalingAI & creator toolsAIAgentsSearchUSA
After co-founding OpenAI and walking away, Elon Musk started xAI in 2023 to build a rival from scratch. It shipped the Grok models, built Colossus in Memphis — roughly 500,000 GPUs and the first gigawatt-scale training cluster — and reached a reported ~$230B valuation in about two years. It was then folded into SpaceX in a combination reported at around $1.25 trillion, alongside a record raise. The fastest capital build-up in AI history, in one company.
Why it's indexed
- Reported ~$230B valuation roughly two years after founding.
- Colossus: ~500k GPUs, the first gigawatt-scale AI cluster.
- Merged into SpaceX in a deal reported around $1.25T.
Coverage
Founder short: Elon Musk & xAIFounder short
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