Organization
xAI
Tracked models
20
Frontier models
3
Largest training run
5 x 10^26 FLOP
20 tracked AI models list xAI as a developer. 3 of them are frontier models — among the largest training runs of their moment. The largest is Grok 4, at 5 x 10^26 FLOP (July 2025). The most recent tracked release is from July 2026.
It operates 3 tracked GPU clusters.
Its most recently reported annualized revenue is $428M. It was last valued at $230B. It employs around 900 people.
Models (20)
Grok 45 x 10^26 FLOPGrok 33.5 x 10^26 FLOPGrok-23 x 10^25 FLOPGrok-1.59.3 x 10^24 FLOPGrok-12.9 x 10^24 FLOPGrok 4.5July 2026Grok Voice Think Fast 1.0April 2026Grok 4.3 BetaApril 2026Grok 4.20February 2026Grok 4.1 FastNovember 2025Grok 4.1November 2025Grok ImagineOctober 2025Grok 4 FastSeptember 2025Grok Code Fast 1August 2025Grok 4 HeavyJuly 2025Grok-3 miniFebruary 2025Grok Image Generation / AuroraDecember 2024Grok-2 miniAugust 2024Grok-1.5VMarch 2024Grok-0November 2023
GPU clusters (3)
SourceEpoch AI, 'AI Models'. Published online at epoch.ai. Retrieved 2026-07-29 from https://epoch.ai/data/ai-models. Licensed under CC BY 4.0.
Other organizations
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