GLM-5.3-Flash vs GLM-4.6V

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
zai-org · B · Open weights
Params
107.7 B
Context
—
30d
4 K
mit · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification GLM-5.3-Flash GLM-4.6V
Deployment Open weights · also via API Open weights · also via API
Parameters 321.3 B 107.7 B
Architecture Glm5NextForConditionalGeneration Glm4vMoeForConditionalGeneration
Context length 1,048,575 131,072
Licence mit mit
Commercial use Allowed Allowed
Languages 2 2
Downloads 30d 6,319,699 3,659
Downloads all time 10.3 M 436 K
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2026-08-25 2025-12-07
API input price / 1M tokens $0.15 $0.30
API output price / 1M tokens $0.50 $0.90
Est. cost per 1M input + 1M output tokens $0.65 $1.20
Cached input / 1M tokens $0.03 $0.05
AA Intelligence Index 41.8 11.2
AA Coding Index 71.5 —
AA Agentic Index 50.9 —
Max output tokens 943,717 32,768
API providers 34 2
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
GLM-4.6V $1.20

GLM-5.3-Flash is 1.8× cheaper at list price.

Download trend

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

6.6 M4 K
GLM-5.3-Flash GLM-4.6V

VRAM side by side

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

GLM-4.6V · fp16 253.6 GB / 24 GB
❌ Won’t fit
GLM-5.3-Flash · fp16 409.9 GB / 24 GB
❌ Won’t fit

Adjacent comparisons