Z.ai · Balanced
GLM Z1 AirX
Fastest reasoning model in China, with up to 200 tokens per second. The stronger version of GLM Z1 Air.
- Tools
- Structured output
- Input
- Text
- Output
- Text
- Discovery tier
- Balanced
Pricing
USD per 1M tokens- Input
- $0.70
- Output
- $0.70
Reference prices as published by the model provider. API example
Specifications
- Context window
- 32K
- Max output
- 16.4K
Side by side
GLM Z1 AirX compared
Specifications, prices, speed and benchmark scores next to each other. Benchmarks below show every compared model too.
| GLM Z1 AirXZ.aiThis model | ERNIE 5.1baiduRemove | |
|---|---|---|
| Provider | Z.ai | baidu |
| Discovery tier | Balanced | Balanced |
| Added | Apr 15, 2025 | May 10, 2026 |
| Limits | ||
| Context window | 32K | 119KBest |
| Max output | 16.38K | 64KBest |
| Average output | — | 1.9K tokens |
| Pricing, USD per 1M tokens | ||
| Input | $0.70Best | $0.75 |
| Output | $0.70Best | $3.00 |
| Cache read | — | $0.75 |
| Capabilities | ||
| Tools | Yes | No |
| Structured output | Yes | No |
| Reasoning effort | — | — |
Public evaluations
Benchmarks
Independent evaluation results, with how each score ranks among the models in the Noumen catalog.
- GLM Z1 AirX
- ERNIE 5.1
| Leaderboard | GLM Z1 AirX | ERNIE 5.1 |
|---|---|---|
| Search Overall | Not in top 20 | #9 · 1226.7 |
Ranks among Noumen catalog models on LMArena leaderboards. Only top-20 placements are listed.LMArena
Developers
Use it through the API
Noumen’s API is OpenAI-compatible: any Chat Completions client works with a base URL and a key.
curl https://www.noumen.xyz/api/v1/chat/completions \
-H "Authorization: Bearer $NOUMEN_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "glm-z1-airx",
"messages": [{ "role": "user", "content": "Explain this stack trace." }]
}'import os
from openai import OpenAI
client = OpenAI(base_url="https://www.noumen.xyz/api/v1", api_key=os.environ["NOUMEN_API_KEY"])
reply = client.chat.completions.create(
model="glm-z1-airx",
messages=[{"role": "user", "content": "Explain this stack trace."}],
)
print(reply.choices[0].message.content)Z.ai
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