Qwen3.5-9B vs Qwen3.8-27B-MLX-4bit

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
lmstudio-community · B · Open weights
Params
4.7 B
Context
—
30d
3.7 M
apache-2.0 · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification Qwen3.5-9B Qwen3.8-27B-MLX-4bit
Deployment Open weights · also via API Open weights
Parameters 9.7 B 4.7 B
Architecture Qwen3_5ForConditionalGeneration Qwen3_5ForConditionalGeneration
Context length 262,144 —
Licence apache-2.0 apache-2.0
Commercial use Allowed Allowed
Languages — —
Downloads 30d 6,369,264 3,735,452
Downloads all time 71.5 M 10.1 M
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2026-02-27 2026-08-14
API input price / 1M tokens $0.17 not on OpenRouter
API output price / 1M tokens $0.25 not on OpenRouter
Est. cost per 1M input + 1M output tokens $0.42 not on OpenRouter
Cached input / 1M tokens — not on OpenRouter
AA Intelligence Index 13.3 not on OpenRouter
AA Coding Index 23.5 not on OpenRouter
AA Agentic Index — not on OpenRouter
Max output tokens 235,929 not on OpenRouter
API providers 5 not on OpenRouter
Tool calling Yes not on OpenRouter
Reasoning mode Yes not on OpenRouter

API cost

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

Qwen3.5-9B $0.42

Download trend

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

14.3 M890 K
Qwen3.5-9B Qwen3.8-27B-MLX-4bit

VRAM side by side

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

Qwen3.8-27B-MLX-4bit · fp16 18.9 GB / 24 GB
✅ Runs comfortably
Qwen3.5-9B · fp16 23.2 GB / 24 GB
⚠️ Tight — reduce context

Adjacent comparisons