OpenBMB
OpenBMB, short for Open Lab for Big Model Base, describes itself as a foundation-model and systems group. Its public ecosystem includes the MiniCPM family, MiniCPM 4.1 for on-device reasoning, MiniCPM-V 4.5 for phone-capable multimodal understanding, and tooling projects such as BMTrain, BMCook, BMInf, OpenPrompt, OpenDelta and ModelCenter. The AtomGit organization also highlights UltraRAG for low-code RAG deployment, ChatDev for multi-agent software creation and AgentCPM-GUI.
Editorial verdict
Researchers and engineering teams evaluating Chinese open-source models for edge inference, multimodal understanding, RAG and agent experiments.
Avoid treating it as a turnkey global SaaS API; teams need to validate model weights, licenses, serving stack and downstream provider terms.
OpenBMB belongs in LLM & API as a Chinese open-source foundation-model ecosystem, with MiniCPM and MiniCPM-V as the main product signals tracked here.
Open-source repositories and model weights; hosted/API access and commercial terms vary by repo, model and downstream provider
Open-source self-hosting, GitHub / AtomGit repositories, Hugging Face / ModelScope model hubs
Commercial use should follow the current product, API, model license and billing terms.
Review prompt, file, media upload, retention and training-use terms before sensitive workloads.
Compare MiniCPM and MiniCPM-V against Qwen, MiMo, Hunyuan open models and DeepSeek for self-hosted workloads.
MiniCPM 4.1 and MiniCPM-V emphasize efficient reasoning and multimodal understanding on end devices.
UltraRAG, ChatDev and AgentCPM-GUI make the ecosystem relevant for low-code RAG, multi-agent software generation and GUI-agent experiments.
BMTrain, BMInf, BMCook, OpenPrompt and OpenDelta are relevant when teams want reusable research and system tooling, not only model weights.
Model names, quotas, release status, regional access and commercial terms can change quickly; recheck official sources before procurement or production use.
mimo-v2-flash
hunyuan-open-models
qwen
deepseek-v4-api
official · zh · verified 2026-08-04
Confirms the OpenBMB organization profile and featured projects including MiniCPM, MiniCPM-V, ChatDev, AgentCPM-GUI and UltraRAG.
official · zh · verified 2026-05-18
Confirms OpenBMB positioning, Big Models for Everyone messaging, MiniCPM 4.1, MiniCPM-V 4.5 and BM toolkit projects.
official · en · verified 2026-05-18
International repository hub for OpenBMB projects and source-code verification.
Last checked: 2026-08-04