GLM-5.3 vs Nex-N2.5-Pro

Specs, VRAM requirements and download trends — updated 25 October 2026.

zai-org · A · Open weights
Params
753.3 B
Context
1,048,576
30d
2.0 M
nex-agi · B · Open weights
Params
396.8 B
Context
—
30d
2 K
apache-2.0 · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification GLM-5.3 Nex-N2.5-Pro
Deployment Open weights · also via API Open weights · also via API
Parameters 753.3 B 396.8 B
Architecture GlmMoeDsaForCausalLM Qwen3_5MoeForConditionalGeneration
Context length 1,048,576 262,144
Licence other apache-2.0
Commercial use Unknown Allowed
Languages 2 —
Downloads 30d 2,043,783 1,880
Downloads all time 3.2 M 34 K
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2026-08-25 2026-09-08
API input price / 1M tokens $0.079 $0.075
API output price / 1M tokens $1.40 $0.25
Est. cost per 1M input + 1M output tokens $1.48 $0.33
Cached input / 1M tokens $0.078 $0.015
AA Intelligence Index 44.8 —
AA Coding Index 74.8 —
AA Agentic Index 53.1 —
Max output tokens 943,718 235,929
API providers 37 1
Tool calling Yes Yes
Reasoning mode Yes Yes

API cost

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

GLM-5.3 $1.48
Nex-N2.5-Pro $0.33

Nex-N2.5-Pro is 4.6× cheaper at list price.

Download trend

Daily snapshots, last 51 days (5 Sep – 25 Oct)

2.0 M2 K
GLM-5.3 Nex-N2.5-Pro

VRAM side by side

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

Nex-N2.5-Pro · fp16 507.9 GB / 24 GB
❌ Won’t fit
GLM-5.3 · fp16 @ 1024K ctx 15,295.6 GB / 24 GB
❌ Won’t fit

Adjacent comparisons