Moondream 3.1 9B A2B
Moondream 3.1 is the successor to Moondream 3 Preview: a distinct 9B mixture-of-experts vision-language checkpoint with 2B active parameters, for visual question answering, captioning, OCR, and visual reasoning. It accepts text or one image with optional reasoning, a 32,000-token context, and up to 4,096 output tokens.
- Reasoning
- Vision
Added Oct 16, 2026
Model weightsPricing
Auto routing · per 1M tokens- Input
- $0.30
- Output
- $2.50
Specifications
- Context window
- 32K
- Max output
- 4.1K
- Parameters
- 9B / 2B
- Total / active
Image examples
Download an image and attach it in chat with the sample prompt. Each example uses one image.
Caption a scene

Sample prompt
Describe what is happening in this image. Include the animals, their equipment, and the setting.
Benchmarks
No public benchmark scores for this model yet.
Providers
Choose explicit providers for this model. Auto routing remains available as the default option.
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