Moondream Vision Models

Compare the one Moondream vision model we track, all of them open-weight.

1 model · 1 open-weight · Updated Jan 2024

About Moondream Vision Models

Every Moondream vision model in our catalog is open-weight. The one model we track publishes downloadable weights, so you can self-host under their own licenses instead of paying per request. The open-weight side runs on Apache 2.0 terms. The most recent release is Moondream 2 (Jan 2024).

Between them, the Moondream models we list cover 4 distinct vision tasks. They cover captioning (1 model), object detection (1), and vision language (1).

On the open-weight tier, Moondream 2 runs at ~2B parameters.

Compare their licenses, sizes, prices, and release dates in the tables below, then open any model page for the full specification.

Which Moondream Model Should You Use?

The one Moondream vision model in our catalog and what it is built for.

Moondream 2: Best for: Object Detection and Captioning. Open weights: Apache 2.0 license, ~2B parameters. Self-host it or run it here. Small enough for on-device and edge deployment.

Open-Source Moondream Models

1 model with downloadable weights you can self-host under their licenses (Apache 2.0).

Moondream 2

Moondream 2 is a small open-source vision-language model from Moondream, the company founded by Vikhyat Korrapati. It was first released in early 2024 and updated through mid-2025. At approximately 1.9 billion parameters, it is designed to run efficiently on consumer hardware such as laptops and edge devices while supporting a practical range of multimodal tasks. Moondream 2 combines a vision encoder based on SigLIP with a compact language backbone, trained for image understanding tasks rather than as a general chat model.The model accepts an image paired with a natural language prompt and produces text responses, supporting visual question answering, image captioning, and image-conditioned dialogue. Later Moondream 2 releases added object localization through a point API that returns coordinates for queried objects, along with improvements to OCR, counting, and document understanding. Moondream 2 is distributed under the Apache 2.0 license and is available through Hugging Face and the maintainer's distribution. Because the model is updated frequently, production deployments should pin to a specific revision rather than tracking the latest release. A successor model, Moondream 3 (Preview), was released in September 2025 with a 9B mixture-of-experts architecture and 2B active parameters, offering substantially stronger visual reasoning than Moondream 2 while retaining the efficiency-focused design. A referring expression segmentation extension to Moondream 3 was released in March 2026.

Frequently Asked Questions About Moondream Vision Models

Which Moondream models can do captioning?

1 of the 1 Moondream vision models we track handles captioning: Moondream 2. Each model page lists its full task coverage, license, and specs.

Which Moondream models can do object detection?

1 of the 1 Moondream vision models we track handles object detection: Moondream 2. Each model page lists its full task coverage, license, and specs.

Are Moondream vision models open source?

Yes. The one Moondream vision model we track publishes downloadable weights you can self-host under its license (Apache 2.0).

How many Moondream vision models are on Roboflow Playground?

We track 1 live Moondream vision model. The most recent addition is Moondream 2, released Jan 2024.

This page lists the one Moondream vision model in the Roboflow Playground catalog, all of them open-weight and free to self-host. They cover captioning, object detection, and vision language, among other tasks. Compare licenses, parameters, prices, and release dates side by side, or open any model page for full details.