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Z.ai
GLM-5.3
Live · US + CAtextGLM-5.3 License (custom)
Z.ai's flagship agentic and coding model, with dynamic sparse attention and a 1M-token context window.
Price per 1M tokens
Input
$1.40
Cached input
$0.26
Output
$4.40
Priced per model · Same in US and CA · Free tier included · Pricing
AA Index
45
#2 of 14
open models we serve
Specs
- Model id
glm-5-3- Weights released
- Aug 29, 2026
- Parameters
- 753B total · 40B active
- Architecture
- MoE
- Context
- 1M tokens (1,000,000)
- Input
- text
- License
- GLM-5.3 License (custom)
- Regions
- us, ca
- Weights
- zai-org/GLM-5.3 ↗
Benchmarks
- Artificial Analysis Intelligence Index45
- Terminal-Bench 3.028.3%
- CyberGym84.5%
Sources: huggingface.co · artificialanalysis.ai · apidog.com
Use it
Three lines of code, or zero.
OpenAI-compatible. Use the model id below, or auto to let the router decide when this model is worth it.
import os
from openai import OpenAI
client = OpenAI(base_url=os.environ["ST_BASE_URL"], api_key=os.environ["ST_API_KEY"])
resp = client.chat.completions.create(
model="glm-5-3",
messages=[{"role": "user", "content": "Hello"}],
)