OpenBMB
2 models across 1 family · Latest: MiniCPM-4 8B (2025-05)
Efficient open-source language models for edge devices.
OpenBMB is a Chinese AI research organization founded in 2022. Efficient open-source language models for edge devices. OpenBMB ships 1 model family totaling 2 models, with the most recent release MiniCPM-4 8B in 2025-05. Notable families include MiniCPM. Use it as a stable reference for lab background, release coverage, and follow-up model pages as they are added. Researchers and evaluators can scan counts, links, release history, and source references without leaving the directory.
About
OpenBMB (Open Lab for Big Model Base), co-founded by Tsinghua NLP researchers and ModelBest Inc. (面壁智能), develops the MiniCPM series of ultra-efficient language models optimized for on-device deployment. MiniCPM4 achieves 3x generation speedup on reasoning tasks, while the multimodal MiniCPM-o 4.5 approaches Gemini 2.5 Flash performance with only 9B parameters. The models are freely available for academic research and commercial use.
Featured models
| Model | Released | Context | Input price ($/1M) | Output price ($/1M) | License |
|---|---|---|---|---|---|
| MiniCPM-4 8B | 2025-05-01 | - | - | - | Apache 2.0 |
| MiniCPM 2B | 2024-02-01 | - | - | - | Apache 2.0 |
Model families
Recent releases
- MiniCPM-4 8B- 2025-05-01
- MiniCPM 2B- 2024-02-01
FAQ
Who founded OpenBMB and when?
OpenBMB was founded in 2022 and is associated with Beijing, China.
What models has OpenBMB released?
OpenBMB ships 2 models across 1 family: MiniCPM.
Is OpenBMB's technology open source?
All tracked models are released under Apache 2.0.
Where is OpenBMB headquartered?
OpenBMB is headquartered in Beijing, China.
What is OpenBMB known for?
Efficient open-source language models for edge devices. Its most prominent tracked family is MiniCPM.
How can I access OpenBMB's models?
OpenBMB's provider availability is tracked on model pages as API and hosting data is verified.
Explore related pages
Last reviewed: 2026-04-18. Data sourced from public lab announcements and provider documentation.