Moondream: Moondream 3 Preview
moondream/moondream3-preview
Try Moondream 3 Preview for free in your browser, and add it to your app for free with Puter.js AI API.
Try it free Add to your app// npm install @heyputer/puter.js
import { puter } from '@heyputer/puter.js';
puter.ai.chat("Explain quantum computing in simple terms", {
model: "moondream/moondream3-preview"
}).then(response => {
document.body.innerHTML = response.message.content;
});
<html>
<body>
<script src="https://js.puter.com/v2/"></script>
<script>
puter.ai.chat("Explain quantum computing in simple terms", {
model: "moondream/moondream3-preview"
}).then(response => {
document.body.innerHTML = response.message.content;
});
</script>
</body>
</html>
Model Card
Moondream 3 Preview is a vision-language model from Moondream (M87 Labs). It is a mixture-of-experts model with 9B total parameters and about 2B active per token, and it accepts text and image input.
It is built for visual tasks beyond captioning. It handles object detection from descriptive queries, pointing, structured output such as JSON with minimal prompting, and OCR, though very small fonts remain a weakness. It is a hybrid reasoning model, and its reasoning steps are tied to regions of the image. The context window is 32K tokens, but the team says post-training does not yet make full use of it, which is why this is a preview.
It suits developers who need low-cost image understanding, detection, or document extraction through an API.
Context Window 32K
tokens
Max Output 4K
tokens
Input Cost $0.3
per million tokens
Output Cost $2.5
per million tokens
Input text, image
modalities
Tool Use No
Release Date Sep 18, 2025
Try Moondream 3 Preview for free
Try Moondream 3 Preview instantly in your browser.
This playground uses the Puter.js AI API — no API keys or setup required.
More AI Models From Moondream
Frequently Asked Questions
You can access Moondream 3 Preview by Moondream through Puter.js AI API. Include the library in your web app or Node.js project and start making calls with just a few lines of JavaScript — no backend and no configuration required. You can also use it with Python or cURL via Puter's OpenAI-compatible API.
Moondream 3 Preview is free to try with a Puter account. Every account includes a free AI allowance, and you can chat with it in the playground on this page. You can upgrade your account anytime for a larger allowance.
Moondream 3 Preview is free to integrate using the Puter.js AI API. With the User-Pays Model, you can add AI to your app for $0, since users cover their own AI usage through their Puter account.
| Price per 1M tokens | |
|---|---|
| Input | $0.3 |
| Output | $2.5 |
Moondream 3 Preview was created by Moondream and released on Sep 18, 2025.
Moondream 3 Preview supports a context window of 32K tokens. For reference, that is roughly equivalent to 64 pages of text.
Moondream 3 Preview can generate up to 4K tokens in a single response.
Moondream 3 Preview accepts the following input types: text, image. It produces: text.
No, Moondream 3 Preview does not currently support tool use (function calling).
Yes — the Moondream 3 Preview API works with any JavaScript framework, Node.js, or plain HTML through Puter.js. Just include the library and start building. See the documentation for more details.
Add Moondream 3 Preview to your app for free
Developers can integrate Moondream 3 Preview for free using the Puter.js AI API.
With the User-Pays Model, each user covers their own AI usage instead of the developer.