waypoints.si The sky Every system The lead Countries Forecast revisions
xAI
A world in the sky: every notable AI system from xAI in Epoch AI’s data.
- Notable systems
- 9, Nov 2023 to Sep 2026
- Best capability score
- 156.5: Grok 4.6, Aug 2026 (Epoch Capabilities Index)
- Largest training run
- Grok 4, 5.0 × 10²⁶ FLOP
- Country
- United States
Releases, newest first
- Grok 4.7, 21 Sep 2026
- Grok 4.20, 17 Feb 2026
- Grok 4.1 Fast, 19 Nov 2025
- Grok 4.1, 17 Nov 2025
- Grok 4 Heavy, 10 Jul 2025
- Grok 4, 9 Jul 2025
- Grok 3, 17 Feb 2025
- Grok-2, 13 Aug 2024
- Grok-1, 4 Nov 2023
See it as a planet in the 3D sky
Data: Epoch AI (Creative Commons Attribution), releases too new for it from OpenRouter, and METR. Updated 25 Sep 2026.