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GLM 5.3 API

Use GLM 5.3 by Z.ai through Refract's OpenAI-compatible API for $0.18 per 1M input and $0.57 per 1M output tokens, 87% below the official $1.40 / $4.40. Pay per token, no subscription.

Model IDglm-5.3
ProviderZ.ai
Input, per 1M tokens$0.18 (official $1.40)
Output, per 1M tokens$0.57 (official $4.40)

Chat with GLM 5.3 · Get an API key

Use it from code

curl https://refracthub.com/v1/chat/completions \
  -H "Authorization: Bearer $REFRACT_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "glm-5.3", "messages": [{"role": "user", "content": "Hello"}]}'
from openai import OpenAI

client = OpenAI(base_url="https://refracthub.com/v1", api_key="YOUR_REFRACT_KEY")
reply = client.chat.completions.create(model="glm-5.3", messages=[{"role": "user", "content": "Hello"}])
print(reply.choices[0].message.content)

Questions

How much does GLM 5.3 cost on Refract?

$0.18 per 1M input tokens and $0.57 per 1M output tokens, compared with $1.40 and $4.40 on Z.ai's official API. You pay only for the tokens you use, with no subscription.

Does it work with the OpenAI SDK?

Yes. Point the OpenAI SDK, or any OpenAI-compatible app, at https://refracthub.com/v1 with your Refract key and use the model name "glm-5.3". The Anthropic Messages format works too.

Can I use GLM 5.3 without writing code?

Yes. Chat with it on the web at https://refracthub.com/chat, or use the Refract desktop app for Windows.

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