Moondream3.1 9B A2B is Moondream's image to text model with a 32K context window and up to 4K output tokens, available from 2 providers, starting at $0.3 / 1M input and $1.00 / 1M output. A fast mixture-of-experts vision-language model with 9B total parameters (2B active) optimized for visual reasoning tasks including object detection, pointing, and OCR.
Specifications
Canonical IDmoondream-moondream3-1-9b-a2b
TypeImage to Text
StatusActive
CreatorMoondream
Providers
Context Window32K tokens
Max Output4K tokens
Input ModalitiesImageText
Output ModalitiesText
Reasoning Effortsdefault
Parameters9.27B
HuggingFace Likes89
HuggingFace Downloads (30d)12,658
HuggingFace Downloads (all-time)44,348
Release Date · 21 days ago

Capabilities

Input2/5
Text✓
Image✓
Audio·
Video·
PDF·
Output1/5
Text✓
Image·
Audio·
Video·
Embedding·
Capabilities1/13
Reasoning✓
Adaptive Reasoning·
Function Calling·
Parallel Function Calling·
Structured Outputs·
Native JSON Schema·
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching·
Assistant Prefill·

Pricing by Provider

US Dollar ($)
Per 1M tokens
ProviderStandard
Input
$ / 1M
Output
$ / 1M
Cloudflare Workers AI logo
Cloudflare Workers AI
@cf/moondream/moondream3.1-9B-A2B
$0.3$1.00
OpenRouter logo
OpenRouter
moondream/moondream3.1-9b-a2b
$0.3$2.50

Cost Calculator

US Dollar ($)
Preset:

Cheapest Instances to Run It

Cloud GPU instances that can host Moondream3.1 9B A2B, ranked by cheapest on-demand price. The model needs about 22 GB of GPU memory at FP16 precision (estimated from its parameter count), so treat the fit as guidance rather than a guarantee.

All clouds
FP16 (full precision)
US Dollar ($)
Instance
Cloud
GPU
VRAM
Price
Cheapest region
g2-standard-4GCPnvidia-l424 GB$0.705/hr
g6.xlargeAWSL422 GB$0.805/hr
g2-standard-8GCPnvidia-l424 GB$0.851/hr
7 more instances can run Moondream3.1 9B A2B
Unlock the full ranked list and FP8 / INT4 quantization with a CloudPrice subscription.

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
Moondream3.1 9B A2B32K$0.300$1.00Current
Moondream3 Preview32K$0.300$2.50Available

Model IDs

@cf/moondream/moondream3.1-9B-A2B
moondream-moondream3-1-9b-a2b
moondream/moondream3.1-9b-a2b