Models
Models from the labs in Epoch AI's catalog, the repositories they published on Hugging Face, and posts from their own news pages.
Grok 4.7xAI · Language · 2.1B parametersAPI accessSep 21Grok 4.6xAI · Language, Multimodal, Vision · 1,500B parametersAPI accessAug 12Grok 4.5xAI · Language · 1,500B parametersAPI accessJul 8Grok Build 0.1xAI · LanguageAPI accessMay 29Grok Voice Think Fast 1.0xAI · AudioAPI accessApr 23Grok 4.3 BetaxAI · Language · 500B parametersHosted access (no API)Apr 17Grok 4.20xAI · Language · 500B parametersAPI accessFeb 17Grok 4.1 FastxAI · LanguageAPI accessNov 19, 2025Grok 4.1xAI · LanguageAPI accessNov 17, 2025Grok ImaginexAI · Image generation, VideoHosted access (no API)Oct 8, 2025Grok 4 FastxAI · LanguageAPI accessSep 19, 2025Grok Code Fast 1xAI · LanguageAPI accessAug 28, 2025Grok 4 HeavyxAI · LanguageUnreleasedJul 10, 2025Grok 4xAI · Language, Multimodal, Vision · 3,000B parameters · Training compute 5e26 FLOPAPI accessJul 9, 2025Grok-3 minixAI · LanguageAPI accessFeb 19, 2025Grok 3xAI · Language, Vision, Multimodal · 3,000B parameters · Training compute 3.5e26 FLOPAPI accessFeb 17, 2025
Data: Epoch AI, CC BY 4.0. Changes: selected rows and columns of Epoch AI's database.