GLM-5.3-Flash vs DeepSeek-V4.1-Flash-1017

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
deepseek-ai · B · Open weights
Params
763.2 B
Context
—
30d
58 K
mit · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification GLM-5.3-Flash DeepSeek-V4.1-Flash-1017
Deployment Open weights · also via API Open weights · also via API
Parameters 321.3 B 763.2 B
Architecture Glm5NextForConditionalGeneration DeepseekV41ForCausalLM
Context length 1,048,575 1,048,576
Licence mit mit
Commercial use Allowed Allowed
Languages 2 —
Downloads 30d 6,319,699 57,715
Downloads all time 10.3 M 58 K
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2026-08-25 2026-10-17
API input price / 1M tokens $0.15 $0.15
API output price / 1M tokens $0.50 $0.60
Est. cost per 1M input + 1M output tokens $0.65 $0.75
Cached input / 1M tokens $0.03 $0.003
AA Intelligence Index 41.8 39.5
AA Coding Index 71.5 —
AA Agentic Index 50.9 —
Max output tokens 943,717 393,216
API providers 34 29
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
DeepSeek-V4.1-Flash-1017 $0.75

GLM-5.3-Flash is 1.2× cheaper at list price.

Download trend

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

6.6 M10 K
GLM-5.3-Flash DeepSeek-V4.1-Flash-1017

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
DeepSeek-V4.1-Flash-1017 · fp16 676.3 GB / 24 GB
❌ Won’t fit

Adjacent comparisons