waypoints.si The sky Every system The lead Countries Forecast revisions
Anthropic
A world in the sky: every notable AI system from Anthropic in Epoch AI’s data.
- Notable systems
- 21, Mar 2023 to Sep 2026
- Best capability score
- 165.0: Claude Fable 5.1, Sep 2026 (Epoch Capabilities Index)
- Largest training run
- Claude 3.7 Sonnet, 3.4 × 10²⁵ FLOP
- Country
- United States
Releases, newest first
- Claude Opus 5.5, 22 Sep 2026 new
- Claude Fable 5.1, 1 Sep 2026
- Claude Opus 5, 24 Jul 2026
- Claude Mythos 5, 9 Jun 2026
- Claude Fable 5, 9 Jun 2026
- Claude Opus 4.8, 28 May 2026
- Claude Opus 4.7, 16 Apr 2026
- Claude Mythos Preview, 7 Apr 2026
- Claude Opus 4.5, 24 Nov 2025
- Claude Haiku 4.5, 15 Oct 2025
- Claude Sonnet 4.5, 29 Sep 2025
- Claude Opus 4.1, 5 Aug 2025
- Claude Sonnet 4, 22 May 2025
- Claude Opus 4, 22 May 2025
- Claude 3.7 Sonnet, 24 Feb 2025
- Claude 3.5 Sonnet, 20 Jun 2024
- Claude 3 Sonnet, 4 Mar 2024
- Claude 3 Opus, 4 Mar 2024
- Claude 2.1, 21 Nov 2023
- Claude 2, 11 Jul 2023
- Claude, 14 Mar 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.