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    Models/Captioning/microsoft/Florence-2-large
    HFScene Captioningmit

    Florence-2-large

    by microsoft

    Foundation model for unified vision tasks with sequence-to-sequence architecture

    655Kdl/month
    1,850likes
    777Mparams
    Identifiers
    Model ID
    microsoft/Florence-2-large
    Feature URI
    mixpeek://image_extractor@v1/microsoft_florence2_large_v1

    Overview

    Florence-2 is a versatile vision foundation model that handles captioning, object detection, grounding, and OCR in a single unified architecture using a sequence-to-sequence paradigm. It processes images and task-specific text prompts to produce structured outputs.

    On Mixpeek, Florence-2 provides detailed scene descriptions that go beyond simple captions, including spatial relationships, object attributes, and contextual information.

    Architecture

    DaViT vision encoder paired with a transformer-based sequence-to-sequence decoder. Supports multiple vision tasks via task-specific prompt tokens. Large variant uses 770M parameters.

    Mixpeek SDK Integration

    // No extractor parameter takes a Hugging Face model id (checked against
    // GET /v1/discovery/extractors, which returns 13), so Florence-2-large 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

    • Dense captioning with region descriptions
    • Referring expression comprehension
    • Object detection and visual grounding
    • OCR with text localization

    Use Cases on Mixpeek

    Rich scene understanding for video analytics
    Multi-task visual extraction in a single pass
    Grounded captioning for accessibility

    Benchmarks

    DatasetMetricScoreSource
    COCO CaptioningCIDEr140.0Xiao et al., 2024: Table 2
    RefCOCO (val)Accuracy92.6%Xiao et al., 2024: Table 5
    TextVQA (val)Accuracy78.0%Xiao et al., 2024: Table 4

    Performance

    Input Size768×768 px
    GPU Latency~35ms / image (A100)
    CPU Latency~520ms / image
    GPU Throughput~28 images/sec (A100)
    GPU Memory~3.1 GB

    Specification

    FrameworkHF
    Organizationmicrosoft
    FeatureScene Captioning
    Outputtext
    Modalitiesvideo, image
    RetrieverSemantic Search
    Parameters777M
    Licensemit
    Downloads/mo655K
    Likes1,850

    Research Paper

    Florence-2: Advancing a Unified Representation for a Variety of Vision Tasks

    arxiv.org

    Build a pipeline with Florence-2-large

    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