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 5/33 · Observed 9/25/2026, 3:30:45 AM
| Name | Group | Reported value | Date | Notes | Source |
|---|---|---|---|---|---|
| Grok 4.1 | API access | — | 2025-11-17 | API access | Source ↗ |
| GPT-5.1 Instant | API access | — | 2025-11-13 | API access | Source ↗ |
| GPT-5.1 | API access | — | 2025-11-13 | API access | Source ↗ |
| GPT-5.1-Codex | API access | — | 2025-11-12 | API access | — |
| Meta's Generative Ads Model (GEM) | Unreleased | — | 2025-11-10 | Unreleased | Source ↗ |
| Kaiju Small | Hosted access (no API) | — | 2025-11-07 | Hosted access (no API) | Source ↗ |
| Kaiju Medium | Hosted access (no API) | — | 2025-11-07 | Hosted access (no API) | Source ↗ |
| Kaiju Large | Hosted access (no API) | — | 2025-11-07 | Hosted access (no API) | Source ↗ |
| Kimi K2 Thinking | Open weights (restricted use) | — | 2025-11-06 | Open weights (restricted use) | Source ↗ |
| Tongyi DeepResearch | Open weights (unrestricted) | — | 2025-10-28 | Open weights (unrestricted) | Source ↗ |
| MiniMax-M2 | Open weights (unrestricted) | — | 2025-10-27 | Open weights (unrestricted) | Source ↗ |
| Veo 3.1 | API access | — | 2025-10-15 | API access | Source ↗ |
| Claude Haiku 4.5 | API access | — | 2025-10-15 | API access | Source ↗ |
| Ling-1T | Open weights (unrestricted) | — | 2025-10-10 | Open weights (unrestricted) | Source ↗ |
| GPT-5 Pro | API access | — | 2025-10-07 | API access | Source ↗ |
| Sora 2.0 | Hosted access (no API) | — | 2025-09-30 | Hosted access (no API) | Source ↗ |
| GLM-4.6 | Open weights (unrestricted) | — | 2025-09-30 | Open weights (unrestricted) | Source ↗ |
| Claude Sonnet 4.5 | API access | — | 2025-09-29 | API access | Source ↗ |
| Gemini Robotics-ER 1.5 | API access | — | 2025-09-25 | API access | Source ↗ |
| Qwen3-Omni-30B-A3B | Open weights (unrestricted) | — | 2025-09-22 | Open weights (unrestricted) | Source ↗ |
| AgentFounder-30B | Open weights (unrestricted) | — | 2025-09-16 | Open weights (unrestricted) | Source ↗ |
| Qwen3-Max | API access | — | 2025-09-05 | API access | Source ↗ |
| LongCat-Flash | Open weights (unrestricted) | — | 2025-09-01 | Open weights (unrestricted) | Source ↗ |
| Gemini 2.5 Flash Image (Nano Banana) | API access | — | 2025-08-26 | API access | Source ↗ |
| GPT-5 nano | API access | — | 2025-08-07 | API access | Source ↗ |
Data: Epoch AI · CC BY · View source · Automatically synced; not an exhaustive global sample