OpenBMB

, founded by ModelBest and Tsinghua NLP...

4.2| Editor Rating

Editor Review

OpenBMB's flagship MiniCPM series has established significant reputation in edge-side lightweight large models. MiniCPM-V 4.5 achieves multimodal performance exceeding models with only parameters, being the industry's first high-refresh-rate video understanding multimodal model. MiniCPM-o 4.5 further supports image/video/text/audio omni-modal I/O with parameters approaching Gemini performance. These models run stably on phones, computers, and cars. Backed by Tsinghua NLP Lab's academic support with development tools like BMTrain. Best suited for developers deploying AI on edge devices, multimodal AI researchers, and technical teams interested in Chinese open-source large models.

AI Tools Navigator Editorial TeamUpdated: 2026-02-03

What is OpenBMB

OpenBMB (Open Lab for Big Model Base), founded by ModelBest and Tsinghua NLP Lab, is an open-source community for large model development. Its MiniCPM series is globally renowned for lightweight edge-side models, including MiniCPM language models, MiniCPM-V multimodal models, and MiniCPM-o omni-modal models. Also provides development tools like BMTrain and BMCook.

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Basic Info

Category:

Best For

DevelopersResearchers

Difficulty: Intermediate

OpenBMB Key Features

MiniCPM Edge Language Models
MiniCPM 4.1 adds sparse architecture thinking model for efficient deep reasoning on edge devices
MiniCPM-V Multimodal Flagship
MiniCPM-V 4.5 surpasses model performance with parameters, industry's first high-refresh video understanding
MiniCPM-o Omni-Modal Model
MiniCPM-o 4.5 supports image/video/text/audio omni-modal I/O with parameters approaching Gemini
Large Model Development Toolkit
Provides BMTrain, BMCook, BMInf tools for accelerating training, fine-tuning, and inference of billion-scale models

OpenBMB Key Advantages

MiniCPM-V 4.5 surpasses models with params, industry's first high-refresh video understanding model
MiniCPM-o 4.5 supports full omni-modal I/O with params approaching Gemini
Models run stably on phones, computers, and cars, supporting GPU/CPU/NPU multi-hardware platforms
Backed by Tsinghua NLP Lab with professional toolchain including BMTrain

OpenBMB Use Cases

Edge AI Deployment
Developers deploy MiniCPM models on phones, computers, and cars for edge AI capabilities
Multimodal AI Research
Researchers conduct cutting-edge multimodal and omni-modal AI research based on MiniCPM-V/o series
Video Understanding & Analysis
Enterprises leverage MiniCPM-V's high-refresh video understanding for video content analysis and information extraction

Frequently Asked Questions

What's the relationship between OpenBMB and ModelBest?▼

OpenBMB is an open-source community founded by ModelBest and Tsinghua University NLP Lab. ModelBest is the commercial entity, OpenBMB is the open-source research community, and MiniCPM series is their most renowned open-source model family.

Can MiniCPM models be used commercially?▼

MiniCPM series uses open-source licenses permitting commercial use. For specific commercial terms, please refer to the LICENSE file in each model's GitHub repository.