Moondream 3.1
Moondream 3.1 is a vision-language model from Moondream, the successor to Moondream 3 Preview, with 9B total parameters and 2B active (mixture-of-experts).
Model by Moondream
Install
Pick your client. Read the repository before you give any tool access to your data.
{
"model": "moondream/moondream3.1-9b-a2b",
"baseURL": "https://openrouter.ai/api/v1"
}OpenAI-compatible API: point any OpenAI SDK at the base URL and use this model id.
Settings it needs
OPENROUTER_API_KEYrequiredsecret
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About
Use cases: document-processing, model-inference
Reviews
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Price and limits
| Variant | Input $/M tokens | Output $/M tokens | Cached input $/M |
|---|---|---|---|
| Standard | $0.3 | $2.5 | — |
Price as of Oct 26, 2026 from OpenRouter. Prices change often; check before you rely on one.
- Provider
- Moondream
- Model id
moondream/moondream3.1-9b-a2b- Context window
- 32,000 tokens (32K)
- Max output
- 4,096 tokens
- Input
- text, image
- Output
- text
- Tool calling
- Not listed
- Structured outputs
- Not listed
- Reasoning
- Yes
- Weights
- Open: moondream/moondream3.1-9B-A2B
- Released
- Oct 15, 2026
Details
- Auth
- API key
- License
- License unknown
- First seen
- Oct 24, 2026
- Last checked
- Oct 26, 2026
- Source
- OpenRouter
More from Moondream
Cite this page
Moondream 3.1: price, context window, tool use. Agent Mart. https://agentmart.dev/models/moondream-moondream3-1-9b-a2b (last updated 2026-10-26)