GLM 5.1 API
z-ai/glm-5.1
Call GLM 5.1 through UberLLM’s OpenAI-compatible API — from $0.1400/M input and $0.4400/M output, routed automatically to the cheapest healthy provider. Zhipu AI · 200,000 token context. No inference markup.
GLM 5.1 pricing & providers
| Provider | Input / 1M | Output / 1M |
|---|---|---|
| Surplus Intelligencebest | $0.1400 | $0.4400 |
| OpenRouter | $0.9660 | $3.04 |
How to use GLM 5.1 with the OpenAI SDK
Already using OpenAI or OpenRouter? Change one line — the base URL — and call GLM 5.1 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-5.1",
messages=[{"role": "user", "content": "Hello!"}],
)
print(resp.choices[0].message.content)GLM 5.1 API — FAQ
How much does the GLM 5.1 API cost?
GLM 5.1 costs from $0.1400 per million input tokens and $0.4400 per million output tokens through UberLLM, which routes to the cheapest healthy provider. There is no inference markup.
How do I call GLM 5.1 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-5.1". Anthropic SDKs work via https://api.uberllm.dev/v1/messages.
Is GLM 5.1 OpenAI-compatible on UberLLM?
Yes. Every model on UberLLM — including GLM 5.1 — is served through one OpenAI-compatible endpoint, so you change only the base URL and key.