Zhipu AI's GLM-5.3 is one of the strongest coding and agentic models of 2026, with a 1M-token context window. But its official console (bigmodel.cn) is built for the Chinese market: signup typically requires a phone number, and paying for API usage generally means Alipay, WeChat Pay, or a Chinese corporate account.
For developers outside China, Zhipu's official onboarding is impractical: +86-oriented phone verification, Chinese payment rails, and a console that assumes a domestic entity. Most international teams simply cannot complete the purchase flow.
https://aiapi-pro.com/v1.| Model | Input $/1M | Output $/1M |
|---|---|---|
| glm-5.3 (1M context, flagship) | $1.25 | $4.00 |
| glm-5.2 | $1.19 | $3.74 |
| glm-5.1 | $1.05 | $3.96 |
| glm-5 | $0.60 | $1.92 |
| glm-4.7-flash | FREE | FREE |
GLM-5.3 costs $1.25 per 1M input tokens on NovAI — about 11% below OpenRouter's $1.40 — with zero platform fee. If you just want to experiment, GLM-4.7-Flash is free forever.
from openai import OpenAI
client = OpenAI(
api_key="nvai-your-key",
base_url="https://aiapi-pro.com/v1"
)
resp = client.chat.completions.create(
model="glm-5.3",
messages=[{"role": "user", "content": "Refactor this function and explain the changes"}]
)
print(resp.choices[0].message.content)See the full GLM-5.3 model page for benchmarks, use cases, and cURL examples.
Access GLM-5.3 from anywhere — email signup, USDT/PayPal/card, $2 free credit.
Yes. Register at NovAI (aiapi-pro.com) with any email - no Chinese phone or Alipay - and call GLM-5.3 and the whole GLM family through an OpenAI-compatible endpoint at https://aiapi-pro.com/v1.
On NovAI, GLM-5.3 is $1.25 per 1M input tokens and $4.00 per 1M output tokens - about 11% below OpenRouter - with no platform fee. New accounts get $2 free credit.
Yes. GLM-4.7-Flash is free forever on NovAI: a 30B-class model optimized for agentic coding with a 202K context window. Use model id glm-4.7-flash with the same API key.