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    Models/Captioning/openbmb/MiniCPM-o-4_5
    HFScene CaptioningApache-2.0

    MiniCPM-o-4_5

    by openbmb

    9B omnimodal model: see, listen, and speak simultaneously with full-duplex streaming

    Identifiers
    Model ID
    openbmb/MiniCPM-o-4_5
    Feature URI
    mixpeek://image_extractor@v1/openbmb_minicpm_o45_v1

    Overview

    MiniCPM-o 4.5 is OpenBMB's 9B-parameter omnimodal model that processes text, images, video, and audio input simultaneously while generating concurrent text and speech output in an end-to-end fashion. Built on SigLIP2 (vision), Whisper-medium (audio encoder), CosyVoice2 (speech decoder), and Qwen3-8B (language model), it supports full-duplex interaction, seeing, listening, and speaking at the same time without mutual blocking.

    With only 9B parameters and 11GB VRAM (Int4 quantization), it surpasses GPT-4o on OpenCompass (77.6 avg across 8 benchmarks) and approaches Gemini 2.5 Flash for vision-language tasks. On Mixpeek, MiniCPM-o 4.5 powers unified multimodal understanding pipelines that need to process video with audio, generating scene descriptions that account for both visual content and spoken dialogue in a single pass.

    Architecture

    End-to-end omnimodal architecture: SigLIP2 vision encoder + Whisper-medium audio encoder + Qwen3-8B language model + CosyVoice2 speech decoder. 9B total parameters. Processes 1.8M pixel images and 10FPS video. 96x video token compression. Supports full-duplex real-time streaming.

    Mixpeek SDK Integration

    // No extractor parameter takes a Hugging Face model id (checked against
    // GET /v1/discovery/extractors, which returns 13), so MiniCPM-o-4_5 runs
    // on your side and the output is upserted through POST
    // /v1/namespaces/{namespace_id}/documents/upsert. On Enterprise the other
    // path is to upload the weights instead: POST /v1/namespaces/{id}/models
    // accepts the huggingface format and a custom plugin loads them.
    const res = await fetch(
      "https://api.mixpeek.com/v1/namespaces/ns_your_namespace/documents/upsert",
      {
        method: "POST",
        headers: {
          Authorization: "Bearer API_KEY",
          "Content-Type": "application/json",
        },
        body: JSON.stringify({
          collection_id: "col_your_collection",
          documents: [
            {
              document_id: "asset-00412",
              // The model produces text, so it lands in payload. Give the
              // collection a text vector index and embed that text to make it
              // searchable rather than only filterable.
              payload: { extracted_text: modelOutput, source_key: "archive/2026/asset-00412" },
              vectors: { "multimodal-embedding": embeddingOfModelOutput },
            },
          ],
        }),
      },
    );
    
    // Managed alternative, if this exact model is not the requirement:
    // universal_extractor@v1 runs google/gemini-embedding-2
    // (3072-d) over a bucket, with no inference of your own.

    Capabilities

    • Full-duplex omnimodal: text, image, video, audio in; text and speech out
    • 77.6 avg on OpenCompass: surpasses GPT-4o
    • 10FPS video understanding with audio
    • Runs on 11GB VRAM (Int4 quantization)
    • Real-time streaming interaction without blocking

    Use Cases on Mixpeek

    Video-with-audio captioning: generate descriptions that capture both visual scenes and spoken dialogue
    Multimodal content understanding: process video calls, presentations, and lectures in a single pipeline
    Interactive media analysis: query video content with natural language about what was seen and said

    Benchmarks

    DatasetMetricScoreSource
    OpenCompass (8 benchmarks)Average77.6OpenBMB, 2026: Model Card
    vs GPT-4o (vision-language)OpenCompassSurpasses GPT-4oOpenBMB, 2026: Model Card
    VRAM (Int4 quantization)Memory11 GBOpenBMB, 2026: Model Card

    Performance

    Input SizeText + images (1.8M px) + video (10FPS) + audio
    GPU Latency~150ms / frame (A100, full omni pipeline)
    GPU Throughput~10 FPS video processing (A100)
    GPU Memory~18 GB (FP16) / ~11 GB (Int4)

    Specification

    FrameworkHF
    Organizationopenbmb
    FeatureScene Captioning
    Outputtext
    Modalitiesvideo, image
    RetrieverSemantic Search
    Parameters9B
    LicenseApache-2.0
    Downloads/mo100K

    Research Paper

    MiniCPM-o 4.5: Towards Real-Time Full-Duplex Omni-Modal Interaction

    arxiv.org

    Build a pipeline with MiniCPM-o-4_5

    Add this model to a processing pipeline alongside other extractors. Combine with retrieval stages for end-to-end search.

    Run it on your own data, free