GLM-5.3 vs Hermes-4-405B

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

zai-org · A · Open weights
Params
753.3 B
Context
1,048,576
30d
1.9 M
NousResearch · B · Open weights
Params
405.9 B
Context
131,072
30d
1 K
llama3 licence · conditional

Specification comparison

Differences are highlighted; identical values are muted.

Specification GLM-5.3 Hermes-4-405B
Deployment Open weights · also via API Open weights · also via API
Parameters 753.3 B 405.9 B
Architecture GlmMoeDsaForCausalLM LlamaForCausalLM
Context length 1,048,576 131,072
Licence other llama3
Commercial use Unknown Conditional
Languages 2 1
Downloads 30d 1,942,665 1,216
Downloads all time 3.1 M 8 K
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2026-08-25 2025-08-06
API input price / 1M tokens $0.079 $1.00
API output price / 1M tokens $1.40 $3.00
Est. cost per 1M input + 1M output tokens $1.48 $4.00
Cached input / 1M tokens $0.078 —
AA Intelligence Index 44.8 7.5
AA Coding Index 74.8 —
AA Agentic Index 53.1 —
Max output tokens 943,718 117,964
API providers 37 1
Tool calling Yes No
Reasoning mode Yes Yes

API cost

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

GLM-5.3 $1.48
Hermes-4-405B $4.00

GLM-5.3 is 2.7× cheaper at list price.

Download trend

Daily snapshots, last 50 days (5 Sep – 24 Oct)

1.9 M1 K
GLM-5.3 Hermes-4-405B

VRAM side by side

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

Hermes-4-405B · fp16 @ 128K ctx 1,867.4 GB / 24 GB
❌ Won’t fit
GLM-5.3 · fp16 @ 1024K ctx 15,295.6 GB / 24 GB
❌ Won’t fit

Adjacent comparisons