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openbmb/minicpm-o

Analysis updated 2026-06-21

24,504PythonAudience · developerComplexity · 4/5Setup · hard

TLDR

A family of compact open-source AI models that can see, hear, and speak simultaneously in real time, small enough to run on a phone or laptop, capable enough to match cloud AI services for image understanding and live voice conversation.

Mindmap

mindmap
  root((MiniCPM-o))
    What it does
      Real-time voice chat
      Image understanding
      Video processing
      Voice cloning
    Models
      MiniCPM-o 4.5 9B
      MiniCPM-V 4.0 4B
    Tech Stack
      Python
      Ollama
      llama.cpp
      vLLM
    Use Cases
      On-device AI assistant
      OCR on images
      Mobile AI apps
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What do people build with it?

USE CASE 1

Build an on-device voice assistant that watches your camera feed and responds in real time without sending data to the cloud.

USE CASE 2

Run optical character recognition on images locally using a compact AI model on consumer hardware.

USE CASE 3

Create a real-time bilingual voice conversation app that processes speech and responds with synthesized voice.

USE CASE 4

Deploy a multimodal AI assistant on a mobile device that can answer questions about photos or live video.

What is it built with?

Pythonllama.cppOllamavLLM

How does it compare?

openbmb/minicpm-oanjok07/ultimatevocalremoverguiresemble-ai/chatterbox
Stars24,50424,53824,593
LanguagePythonPythonPython
Setup difficultyhardmoderatemoderate
Complexity4/52/52/5
Audiencedevelopervibe coderdeveloper

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · hard Time to first run · 1h+

GPU recommended for real-time performance, setup varies by deployment backend (llama.cpp, Ollama, or vLLM).

In plain English

MiniCPM-o is a series of compact, open-source multimodal AI models designed to run efficiently on devices like phones and laptops. Multimodal means the models can process multiple types of input simultaneously, images, video, audio, and text, and produce text and speech responses. The flagship model, MiniCPM-o 4.5, has 9 billion parameters and is designed to match the capability of Google's Gemini 2.5 Flash while being small enough to deploy locally. Its headline feature is full-duplex multimodal live streaming, meaning the model can see, listen, and speak all at the same time without each operation blocking the others. You can have a real-time conversation where the model watches your camera feed, hears your voice, and responds with speech, all simultaneously, like a video call with an AI. Features include voice cloning, bilingual real-time speech conversation, optical character recognition in images, and proactive interaction (the model can initiate reminders on its own). A companion model, MiniCPM-V 4.0, focuses on image understanding at just 4 billion parameters and outperforms much larger models on certain benchmarks. You would use MiniCPM-o when building on-device AI assistants, accessibility tools, or real-time interactive applications where sending data to a cloud server is impractical or undesirable. The tech stack is Python, with support for deployment via llama.cpp, Ollama, and vLLM.

Copy-paste prompts

Prompt 1
How do I run MiniCPM-o locally using Ollama to start a real-time voice and video conversation?
Prompt 2
Show me how to use MiniCPM-V 4.0 with Python to extract text from an image using OCR.
Prompt 3
Help me set up a full-duplex voice conversation with MiniCPM-o where the model can see my webcam feed.
Prompt 4
How do I use voice cloning in MiniCPM-o to make the AI respond in a specific voice?

Frequently asked questions

What is minicpm-o?

A family of compact open-source AI models that can see, hear, and speak simultaneously in real time, small enough to run on a phone or laptop, capable enough to match cloud AI services for image understanding and live voice conversation.

What language is minicpm-o written in?

Mainly Python. The stack also includes Python, llama.cpp, Ollama.

How hard is minicpm-o to set up?

Setup difficulty is rated hard, with roughly 1h+ to a first successful run.

Who is minicpm-o for?

Mainly developer.

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