GLM 5.3 API
z-ai/glm-5.3
Call GLM 5.3 through UberLLM’s OpenAI-compatible API — from $0.0004/M input and $0.0077/M output, routed automatically to the cheapest healthy seller. Z.ai · 1,000,000 token context. Fee included.
GLM 5.3 pricing
- Input
- $0.000435
- Output
- $0.0077
- Cached input
- $0.000429
- Input
- $0.0869
- Output
- $1.54
- Cached input
- $0.0858
| Provider | Input | Output | Cached input |
|---|---|---|---|
| OpenRouter | $0.079 | $1.40 | $0.078 |
| Morpheus | $1.40 | $4.40 | $0.26 |
| Z.ai | $1.40 | $4.40 | $0.26 |
| Bankr | $1.40 | $4.40 | $0.26 |
| Venice AI | $1.75 | $5.50 | $0.325 |
UberLLM routes every request to the cheapest healthy seller for this model. The price shown includes UberLLM’s 10% fee.
How to use GLM 5.3 with the OpenAI SDK
Already using the OpenAI SDK? Change one line — the base URL — and call GLM 5.3 with your existing code. Anthropic SDKs work against https://api.uberllm.dev/v1/messages.
from openai import OpenAI
client = OpenAI(
base_url="https://api.uberllm.dev/v1",
api_key="ull_your_key_here",
)
resp = client.chat.completions.create(
model="z-ai/glm-5.3",
messages=[{"role": "user", "content": "Hello!"}],
)
print(resp.choices[0].message.content)GLM 5.3 API — FAQ
How much does the GLM 5.3 API cost?
GLM 5.3 is listed from $0.0004 per million input tokens and $0.0077 per million output tokens through UberLLM, which routes each request to the cheapest healthy seller on a live marketplace and bills the price shown, which includes UberLLM's 10% fee.
How do I call GLM 5.3 via API?
Use any OpenAI-compatible SDK: set the base URL to https://api.uberllm.dev/v1, your UberLLM API key, and model "z-ai/glm-5.3". Anthropic SDKs work via https://api.uberllm.dev/v1/messages.
Is GLM 5.3 OpenAI-compatible on UberLLM?
Yes. Every model on UberLLM — including GLM 5.3 — is served through one OpenAI-compatible endpoint, so you change only the base URL and key.