glm-5.1

Live
zai-org

GLM-5.1 is Z-AI's next-generation flagship model for agentic engineering, with significantly stronger coding capabilities than its predecessor. It achieves state-of-the-art performance on SWE-Bench Pro and leads GLM-5 by a wide margin on NL2Repo (repo generation) and Terminal-Bench 2.0 (real-world terminal tasks).

Modality

Chat

Context window

203K tokens

Max output

16K tokens

Region

US

Published

Jul 21, 2026

Pricing

Input

59.01

EGP per 1M tokens

Output

196.70

EGP per 1M tokens

Use it via the API

glm-5.1 works with any OpenAI-compatible SDK — point the base URL at https://preprod-backend.sovereigneg.com/v1 and use your SovereignEG API key.

Run inference

OpenAI-compatible — POST /v1/chat/completions — drop-in for any OpenAI SDK.

from openai import OpenAI

client = OpenAI(
    base_url="https://preprod-backend.sovereigneg.com/v1",
    api_key="YOUR_API_KEY",
)

response = client.chat.completions.create(
    model="glm-5.1",
    messages=[
        {"role": "user", "content": "What are some fun things to do in Cairo?"}
    ],
)

print(response.choices[0].message.content)

Frequently asked questions

How much does glm-5.1 cost?

59.01 EGP per 1M input tokens; 196.70 EGP per 1M output tokens. Billing is metered per token in Egyptian pounds (EGP), with no minimum commitment.

What is the context window of glm-5.1?

glm-5.1 supports a context window of 202,752 tokens (203K), with up to 16,384 output tokens per response.

Where is glm-5.1 hosted?

glm-5.1 is served from US (US-hosted inference).

How do I use glm-5.1 via the API?

glm-5.1 is available through the OpenAI-compatible SovereignEG API: point your SDK's base URL at https://preprod-backend.sovereigneg.com/v1 and call /v1/chat/completions with model "glm-5.1" and your API key.