GLM-5.3-Flash vs Qwen3.5-397B-A17B

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

zai-org · A · Open weights
Params
321.3 B
Context
—
30d
6.3 M
mit · commercial OK
Qwen · B · Open weights
Params
403.4 B
Context
—
30d
667 K
apache-2.0 · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification GLM-5.3-Flash Qwen3.5-397B-A17B
Deployment Open weights · also via API Open weights · also via API
Parameters 321.3 B 403.4 B
Architecture Glm5NextForConditionalGeneration Qwen3_5MoeForConditionalGeneration
Context length 1,048,575 262,144
Licence mit apache-2.0
Commercial use Allowed Allowed
Languages 2 —
Downloads 30d 6,319,699 667,204
Downloads all time 10.3 M 6.1 M
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2026-08-25 2026-02-16
API input price / 1M tokens $0.15 $0.50
API output price / 1M tokens $0.50 $3.60
Est. cost per 1M input + 1M output tokens $0.65 $4.10
Cached input / 1M tokens $0.03 $0.30
AA Intelligence Index 41.8 21.4
AA Coding Index 71.5 —
AA Agentic Index 50.9 —
Max output tokens 943,717 235,929
API providers 34 10
Tool calling Yes Yes
Reasoning mode Yes Yes

API cost

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

GLM-5.3-Flash $0.65
Qwen3.5-397B-A17B $4.10

GLM-5.3-Flash is 6.3× cheaper at list price.

Download trend

Daily snapshots, last 56 days (30 Aug – 24 Oct)

6.6 M190 K
GLM-5.3-Flash Qwen3.5-397B-A17B

VRAM side by side

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

GLM-5.3-Flash · fp16 409.9 GB / 24 GB
❌ Won’t fit
Qwen3.5-397B-A17B · fp16 948.5 GB / 24 GB
❌ Won’t fit

Adjacent comparisons