Qwen3.5-9B vs Mistral Medium 3.5

API pricing, benchmark indices and specs — updated 19 October 2026.

Qwen · A · Open weights
Params
9.7 B
Context
—
30d
6.4 M
apache-2.0 · commercial OK
mistralai · B · API-only
Input / 1M
$1.50
Output / 1M
$7.50
AA index
14.2
proprietary · 262.1K context

Specification comparison

Differences are highlighted; identical values are muted.

Specification Qwen3.5-9B Mistral Medium 3.5
Deployment Open weights · also via API API-only (closed weights)
Parameters 9.7 B n/a — API-only
Architecture Qwen3_5ForConditionalGeneration n/a — API-only
Context length 262,144 262,144
Licence apache-2.0 Proprietary
Commercial use Allowed Per API terms
Languages — n/a — API-only
Downloads 30d 6,369,264 n/a — API-only
Downloads all time 71.5 M n/a — API-only
Quantizations on the Hub SAFETENSORS n/a — API-only
Gated No n/a — API-only
First seen on the Hub 2026-02-27 n/a — API-only
API input price / 1M tokens $0.17 $1.50
API output price / 1M tokens $0.25 $7.50
Est. cost per 1M input + 1M output tokens $0.42 $9.00
Cached input / 1M tokens — —
AA Intelligence Index 13.3 14.2
AA Coding Index 23.5 46.9
AA Agentic Index — 7
Max output tokens 235,929 209,715
API providers 5 1
Tool calling Yes Yes
Reasoning mode Yes Yes

API cost

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

Qwen3.5-9B $0.42
Mistral Medium 3.5 $9.00

Qwen3.5-9B is 21.4× cheaper at list price.

VRAM side by side

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

Qwen3.5-9B · fp16 23.2 GB / 24 GB
⚠️ Tight — reduce context

Adjacent comparisons