OpenBMB (Open Lab for Big Model Base) is an open-source initiative based in Beijing, supported by Tsinghua University's NLP group and the company ModelBest. It publishes the MiniCPM family of small language and vision-language models and related tooling.
- Founded
- 2021
- Type
- Open community
- AI lab
Catalogue
All models by OpenBMB
4 models · 1–4
| Select models to compare | Model | Released | Context | Input /M | Output /M | Parameters | Type | I/O | Openness |
|---|---|---|---|---|---|---|---|---|---|
 MiniCPM-V 4.7 35B-A3BOpenBMB | October 7, 2026 | 262K | — | — | 35B | Text | text, image, video → text | Open weights | |
| MiniCPM-V 4.7 1BOpenBMB | October 6, 2026 | 262K | — | — | 1B | Text | text, image, video → text | Open weights | |
| MiniCPM5-2BOpenBMB | September 6, 2026 | 131K | — | — | 2B | Text | text → text | Open weights | |
| MiniCPM5-1BOpenBMB | May 19, 2026 | 131K | — | — | 1B | Text | text → text | Open weights |