moondream / image-text-to-text Open weights Also via API updated 3 months ago

moondream3.1-9B-A2B

Moondream 3.1 is a vision language model with a mixture-of-experts architecture (9B total parameters, 2B active). It delivers state-of-the-art visual reasoning and detection while staying fast and cheap to deploy. Skills include query, detect, point, and caption, all native and all returning structured output.

Params
9.3 B
Context
—
Downloads 30d
10 K
Likes
91
Licence: other Not gated SAFETENSORS View on Hugging Face ↗

Download history

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Can you run it?

Estimated VRAM at 8K context unless noted. Pick your hardware to see the verdict per quantization.

FileQuantSizeEst. VRAMVerdict on RTX 4090 · 24 GB
model.safetensors f8_e4m3 10.5 GB 13.4 GB ✅ Runs comfortably
Estimate: file size × 1.1 + KV cache at 8K + 0.5 GB overhead. Not a benchmark — how we calculate this.

Use via API

via OpenRouter · USD per 1M tokens · synced 2026-10-24
$0.30
input / 1M
$2.50
output / 1M
—
cached input / 1M
$2.80
1M in + 1M out
Context window
32,000 tokens
Max output
4,096 tokens
Providers
1
Cheapest provider
PrimeIntellect · $0.30 / $2.50
Best throughput
—
AA Intelligence / Coding / Agentic
— / — / —
✗ Tool calling ✓ Reasoning ✗ Structured outputs ✓ Image input ✗ File input ✗ Audio input ✗ Prompt caching

Specifications

Parameters
9.3 B
Tensor type
F8_E4M3
Licence
other
First seen on the Hub
2026-06-30
Training datasets
undisclosed
Added to our catalog
2026-10-20
Compare with any image-text-to-text model