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 19/33 · Observed 9/25/2026, 3:30:45 AM
| Name | Group | Reported value | Date | Notes | Source |
|---|---|---|---|---|---|
| CogVideo | Open weights (unrestricted) | — | 2022-05-29 | Open weights (unrestricted) | Source ↗ |
| Tranception | Open weights (unrestricted) | — | 2022-05-27 | Open weights (unrestricted) | Source ↗ |
| GPT-2 Medium (FlashAttention) | Open weights (unrestricted) | — | 2022-05-27 | Open weights (unrestricted) | Source ↗ |
| Imagen | API access | — | 2022-05-23 | API access | Source ↗ |
| SimCSE | Open weights (unrestricted) | — | 2022-05-18 | Open weights (unrestricted) | Source ↗ |
| Gato | Unreleased | — | 2022-05-12 | Unreleased | Source ↗ |
| UL2 | Open weights (unrestricted) | — | 2022-05-10 | Open weights (unrestricted) | Source ↗ |
| DeBERTaV3large + KEAR | Unreleased | — | 2022-05-04 | Unreleased | Source ↗ |
| OPT-175B | Open weights (non-commercial) | — | 2022-05-02 | Open weights (non-commercial) | Source ↗ |
| Flamingo | Unreleased | — | 2022-04-29 | Unreleased | Source ↗ |
| XMC-GAN | Unreleased | — | 2022-04-14 | Unreleased | Source ↗ |
| Sparse all-MLP | Unreleased | — | 2022-04-14 | Unreleased | Source ↗ |
| Stable Diffusion (LDM-KL-8-G) | Open weights (unrestricted) | — | 2022-04-13 | Open weights (unrestricted) | Source ↗ |
| BERT-RBP | Open weights (non-commercial) | — | 2022-04-07 | Open weights (non-commercial) | Source ↗ |
| DALL·E 2 | API access | — | 2022-04-06 | API access | Source ↗ |
| PaLM (540B) | Unreleased | — | 2022-04-04 | Unreleased | Source ↗ |
| Chinchilla | Unreleased | — | 2022-03-29 | Unreleased | Source ↗ |
| Make-A-Scene | Unreleased | — | 2022-03-24 | Unreleased | Source ↗ |
| Segatron-XL large, M=384 + HCP | Unreleased | — | 2022-03-21 | Unreleased | Source ↗ |
| GPT-3.5 (davinci-002) | API access | — | 2022-03-15 | API access | Source ↗ |
| ViT-G (model soup) | Open weights (non-commercial) | — | 2022-03-10 | Open weights (non-commercial) | Source ↗ |
| MegaSyn | Hosted access (no API) | — | 2022-03-07 | Hosted access (no API) | Source ↗ |
| Statement Curriculum Learning | API access | — | 2022-03-02 | API access | Source ↗ |
| DeepNet | Unreleased | — | 2022-03-01 | Unreleased | Source ↗ |
| PolyCoder | Open weights (unrestricted) | — | 2022-02-26 | Open weights (unrestricted) | Source ↗ |
Data: Epoch AI · CC BY · View source · Automatically synced; not an exhaustive global sample