moondream3-preview
Moondream 3 Preview is a vision-language model from Moondream with 9B total and 2B active parameters (mixture-of-experts), handling visual question answering, captioning, OCR and visual reasoning over images.
Precio: Entrada: 72 créditos / 1 M de tokens (≈ $0.36); salida: 600 créditos / 1 M de tokens (≈ $3.00).
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Moondream 3 Preview API on ModelFold
Moondream 3 Preview is a vision-language model from Moondream with 9B total and 2B active parameters (mixture-of-experts), handling visual question answering, captioning, OCR and visual reasoning over images. Try Moondream 3 Preview in the ModelFold Playground, then call it from your own code through an OpenAI-compatible chat completions API.
What Is the Moondream 3 Preview API
Moondream 3 Preview at a glance
Moondream 3 Preview is a chat model from Moondream. It accepts text and images as input and returns text, with a context window of up to 32K tokens.
Use it without hosting anything
On ModelFold you call Moondream 3 Preview with a single API key — no model weights to download and no inference servers to run. The same key also works for the other chat, image, video and audio models on ModelFold.
Core Capabilities of Moondream 3 Preview
Up to 32K tokens of context
Keep long conversations, large documents and sizeable code in a single request, so the model can reason over the full material instead of fragments.
Understands images
Besides text, Moondream 3 Preview accepts images as input, so a single request can combine instructions with visual or other media.
Reasoning mode
Moondream 3 Preview can produce reasoning before its final answer; in the Playground you can switch reasoning on or off to compare results.
How to Use Moondream 3 Preview on ModelFold
- 1
Step 1: Try it in the Playground
Open the Playground at the top of this page, type a prompt and see how Moondream 3 Preview responds before writing any code.
- 2
Step 2: Create an API key
Sign in to ModelFold and create an API key in the console. Keep it secret and send it as a Bearer token.
- 3
Step 3: Send a request
Call POST https://modelfold.ai/v1/chat/completions with "model": "moondream3-preview" and your messages. Existing OpenAI-compatible SDKs work by changing the base URL and key.
- ✓
Step 4: Ship and monitor
Integrate the response into your product and check token usage and spend for every call in the console logs.
What You Can Build with Moondream 3 Preview
Screenshot and image understanding
Read screenshots, charts, diagrams and photos alongside text — for UI review, visual QA or turning images into structured data.
High-volume pipelines
Run classification, extraction, rewriting and batch jobs at scale where cost per request matters.
Long-document workflows
Feed in long reports, contracts, manuals or codebases and ask for summaries, comparisons and answers grounded in the material.
Frequently Asked Questions
What is Moondream 3 Preview?⌄
Moondream 3 Preview is a vision-language model from Moondream with 9B total and 2B active parameters (mixture-of-experts), handling visual question answering, captioning, OCR and visual reasoning over images.
Which inputs does Moondream 3 Preview support?⌄
Moondream 3 Preview accepts text and images and returns text. Through ModelFold you can send text and images (OpenAI-style image_url content); in the Playground you can also attach documents, which are converted to text.
How long is the context window of Moondream 3 Preview?⌄
Up to 32K tokens, shared between your input and the model’s output.
Does Moondream 3 Preview support function calling?⌄
Function calling is not listed for Moondream 3 Preview; requests that include tools will be rejected. Use plain prompts or JSON output instead.
How is Moondream 3 Preview billed on ModelFold?⌄
Pay as you go by tokens: input and output tokens are charged at the per-million-token prices shown on this page. There is no monthly fee, and failed requests are not charged.
How do I call Moondream 3 Preview through the API?⌄
Send a POST request to https://modelfold.ai/v1/chat/completions with "model": "moondream3-preview", using your ModelFold API key as the Bearer token.
| Entrada | 72 créditos 1M tokens≈ $0.36 |
| Salida | 600 créditos 1M tokens≈ $3.00 |
Se cobra por token, con tarifas separadas para entrada y salida. Los tokens de razonamiento cuentan como salida. El entorno de pruebas aplica exactamente el mismo cálculo.
Leer la documentación de la API →AI Agents · Claude Code / Cursor / Trae →curl https://modelfold.ai/v1/chat/completions \
-H "Authorization: Bearer $MODELFOLD_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"moondream3-preview","messages":[{"role":"user","content":"Hello"}]}'