Qwen3.5-9B vs moondream3.1-9B-A2B

Specs, VRAM requirements and download trends — updated 24 October 2026.

Qwen · A · Open weights
Params
9.7 B
Context
—
30d
6.4 M
apache-2.0 · commercial OK
moondream · B · Open weights
Params
9.3 B
Context
—
30d
10 K

Specification comparison

Differences are highlighted; identical values are muted.

Specification Qwen3.5-9B moondream3.1-9B-A2B
Deployment Open weights · also via API Open weights · also via API
Parameters 9.7 B 9.3 B
Architecture Qwen3_5ForConditionalGeneration —
Context length 262,144 32,000
Licence apache-2.0 other
Commercial use Allowed Unknown
Languages — —
Downloads 30d 6,369,264 9,557
Downloads all time 71.5 M 46 K
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2026-02-27 2026-06-30
API input price / 1M tokens $0.17 $0.30
API output price / 1M tokens $0.25 $2.50
Est. cost per 1M input + 1M output tokens $0.42 $2.80
Cached input / 1M tokens — —
AA Intelligence Index 13.3 —
AA Coding Index 23.5 —
AA Agentic Index — —
Max output tokens 235,929 4,096
API providers 5 1
Tool calling Yes No
Reasoning mode Yes Yes

API cost

Estimated cost of 1M input + 1M output tokens via OpenRouter

Qwen3.5-9B $0.42
moondream3.1-9B-A2B $2.80

Qwen3.5-9B is 6.7× cheaper at list price.

Download trend

Daily snapshots, last 89 days (28 Jul – 24 Oct)

14.3 M10 K
Qwen3.5-9B moondream3.1-9B-A2B

VRAM side by side

On RTX 4090 · 24 GB · 8K context unless noted

moondream3.1-9B-A2B · fp16 13.4 GB / 24 GB
✅ Runs comfortably
Qwen3.5-9B · fp16 23.2 GB / 24 GB
⚠️ Tight — reduce context

Adjacent comparisons