Open weights trend
Open-weight models / tracked models with known accessibility per publication month. Unknown accessibility is not closed source, and open weights do not imply a fully open-source license.
Open weights trend
Total 821 · Page 2/33 · Observed 9/25/2026, 3:30:45 AM
| Name | Group | Reported value | Date | Notes | Source |
|---|---|---|---|---|---|
| Inkling | Open weights (unrestricted) | — | 2026-07-15 | Open weights (unrestricted) | Source ↗ |
| Tencent Hy3 | Open weights (unrestricted) | — | 2026-07-06 | Open weights (unrestricted) | Source ↗ |
| LongCat-2.0 | Open weights (unrestricted) | — | 2026-06-29 | Open weights (unrestricted) | Source ↗ |
| Solar Open2 250B | Open weights (unrestricted) | — | 2026-06-28 | Open weights (unrestricted) | Source ↗ |
| Claude Mythos 5 | Unreleased | — | 2026-06-09 | Unreleased | Source ↗ |
| Claude Fable 5 | API access | — | 2026-06-09 | API access | Source ↗ |
| Nemotron 3 Ultra | Open weights (unrestricted) | — | 2026-06-04 | Open weights (unrestricted) | Source ↗ |
| Qwen3.7-Plus | API access | — | 2026-06-03 | API access | Source ↗ |
| MAI-Image-2.5 | API access | — | 2026-06-02 | API access | Source ↗ |
| MAI-Code-1-Flash | API access | — | 2026-06-02 | API access | Source ↗ |
| MiniMax-M3 | Open weights (restricted use) | — | 2026-06-01 | Open weights (restricted use) | Source ↗ |
| Claude Opus 4.8 | API access | — | 2026-05-28 | API access | Source ↗ |
| Gemini 3.5 Flash | API access | — | 2026-05-19 | API access | Source ↗ |
| Composer 2.5 | API access | — | 2026-05-18 | API access | Source ↗ |
| TML-Interaction-Small | Unreleased | — | 2026-05-11 | Unreleased | Source ↗ |
| GPT-5.5 Cyber | Unreleased | — | 2026-05-07 | Unreleased | Source ↗ |
| GPT-5.5 Instant | API access | — | 2026-05-05 | API access | Source ↗ |
| DeepSeek-V4-Pro | Open weights (unrestricted) | — | 2026-04-24 | Open weights (unrestricted) | Source ↗ |
| DeepSeek-V4-Flash | Open weights (unrestricted) | — | 2026-04-24 | Open weights (unrestricted) | Source ↗ |
| Tencent Hy3 preview | Open weights (restricted use) | — | 2026-04-23 | Open weights (restricted use) | Source ↗ |
| MiMo-V2.5-Pro | Open weights (unrestricted) | — | 2026-04-23 | Open weights (unrestricted) | Source ↗ |
| GPT-5.5 Pro | API access | — | 2026-04-23 | API access | Source ↗ |
| GPT-5.5 | API access | — | 2026-04-23 | API access | Source ↗ |
| GPT Image 2 | API access | — | 2026-04-21 | API access | Source ↗ |
| Kimi K2.6 | Open weights (unrestricted) | — | 2026-04-20 | Open weights (unrestricted) | Source ↗ |
Data: Epoch AI · CC BY · View source · Automatically synced; not an exhaustive global sample