Days until open weights matched each leader: every release
Days until open weights matched each leader. 3 releases since 16 Oct 2026.
Each release is the file as the site published it on that day, and its copy does not change. Cite a release when a reader must be able to open the same rows later.
The current file changelog.json These releases in the API The page that shows it
Every release, newest first
latest 2026-10-30| Release | Data checked | Rows | Size | Against the one before |
|---|---|---|---|---|
2026-10-30.csv 2026-10-30.json sha256 86390fd7f590c9d4866a19c3ee0c5e88b739eb2251b3ce536b9abdaa622feefd | 30 Oct 2026 | 63 | 12 KB | Rows: 1 added, 62 changed |
2026-10-22.csv 2026-10-22.json sha256 c00716ecb30760bedd3d84f6827bfa981adaf03ab2efb496158a53730f236fea | 22 Oct 2026 | 62 | 12 KB | Rows: 62 changed |
2026-10-16.csv 2026-10-16.json sha256 8a2615b588cfc3e5bee46349a3fe802a2d236a79f40ab0be6673406472d5fff9 | 11 Oct 2026 | 62 | 12 KB | First release |
What changed on 30 Oct 2026
rows matched by arena, closed_leader1 added
- Text · Gemini 4 Carbon (High)
62 changed
- Text · gpt-4-0314 source
- Text · gpt-4-0125-preview source
- Text · gpt-4-1106-preview source
- Text · claude-3-opus-20240229 source
- Text · gpt-4-turbo-2024-04-09 source
- Text · gpt-4o-2024-05-13 source
- Text · chatgpt-4o-latest source
- Text · grok-2-2024-08-13 source
- Text · o1-preview source
- Text · o1-2024-12-17 source
- Text · grok-3-preview-02-24 source
- Text · chatgpt-4o-latest-20250326 source
- Text · o3-2025-04-16 source
- Text · gemini-2.5-pro source
- Text · gemini-3-pro source
- Text · claude-opus-4-6-thinking source
- Text · claude-opus-4-6 days, source
- Text · claude-opus-5-high days, source
- Text · claude-opus-5-max days, source
- Text · claude-fable-5.1-max days, source
changelog.json lists all 62.
What changed on 22 Oct 2026
rows matched by arena, closed_leader62 changed
- Text · gpt-4-0314 source
- Text · gpt-4-0125-preview source
- Text · gpt-4-1106-preview source
- Text · claude-3-opus-20240229 source
- Text · gpt-4-turbo-2024-04-09 source
- Text · gpt-4o-2024-05-13 source
- Text · chatgpt-4o-latest source
- Text · grok-2-2024-08-13 source
- Text · o1-preview source
- Text · o1-2024-12-17 source
- Text · grok-3-preview-02-24 source
- Text · chatgpt-4o-latest-20250326 source
- Text · o3-2025-04-16 source
- Text · gemini-2.5-pro source
- Text · gemini-3-pro source
- Text · claude-opus-4-6-thinking source
- Text · claude-opus-4-6 days, source
- Text · claude-opus-5-high days, source
- Text · claude-opus-5-max days, source
- Text · claude-fable-5.1-max days, source
changelog.json lists all 62.
Cite a release
2026-10-30Days until open weights matched each leader, release 2026-10-30. jesseahawkins.com. https://jesseahawkins.com/data/releases/frontier/catch-up/2026-10-30.csv
sha256 86390fd7f590c9d4866a19c3ee0c5e88b739eb2251b3ce536b9abdaa622feefdThe hash lets a reader confirm that a downloaded copy is this release, byte for byte.