GLM-5.3 · orcarouter

GLM-5.3 is Z.ai (Zhipu AI)'s latest flagship model for complex software engineering and long-horizon agentic tasks. It delivers roughly a 50% improvement in coding experience over GLM-5.2, matches Mythos 5 on selected cybersecurity capabilities, and strikes a better balance between raw performance and token efficiency. It is a text-in / text-out model built for repo-scale coding, autonomous multi-step engineering, and agent workflows that must stay coherent over long horizons. GLM-5.3 uses the same API surface as the GLM-5 line with two changes callers must handle: thinking is always on (thinking.type only accepts enabled; passing disabled now fails the request), and reasoning depth is controlled by reasoning_effort with values low / high / max, defaulting to max. It supports native tool calling and structured JSON output, and speaks the OpenAI-compatible chat-completions format.

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Zuletzt geprüft 04.11.2026 12:26:37 UTC

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API

OpenAI-kompatible API: Die offiziellen OpenAI-SDKs funktionieren mit dieser Basis-URL. Ersetzen Sie YOUR_API_KEY durch Ihren Schlüssel vom Anbieter.

API-Basis-URL	`https://api.orcarouter.ai/v1`
Endpunkt	`https://api.orcarouter.ai/v1/chat/completions`
Modell-ID	`z-ai/glm-5.3`

curl

curl https://api.orcarouter.ai/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "z-ai/glm-5.3", "messages": [{"role": "user", "content": "Hello!"}], "max_tokens": 256}'

Python

import requests

r = requests.post(
    "https://api.orcarouter.ai/v1/chat/completions",
    headers={"Authorization": "Bearer YOUR_API_KEY"},
    json={
      "model": "z-ai/glm-5.3",
      "messages": [
        {
          "role": "user",
          "content": "Hello!"
        }
      ],
      "max_tokens": 256
    },
)
print(r.json())

JavaScript

const r = await fetch("https://api.orcarouter.ai/v1/chat/completions", {
  method: "POST",
  headers: {Authorization: "Bearer YOUR_API_KEY", "Content-Type": "application/json"},
  body: JSON.stringify({
    "model": "z-ai/glm-5.3",
    "messages": [
      {
        "role": "user",
        "content": "Hello!"
      }
    ],
    "max_tokens": 256
  }),
});
console.log(await r.json());

Anfrage (JSON)

{
  "model": "z-ai/glm-5.3",
  "messages": [
    {
      "role": "user",
      "content": "Hello!"
    }
  ],
  "max_tokens": 256
}

Antwort (JSON)

{
  "id": "chatcmpl-...",
  "object": "chat.completion",
  "model": "z-ai/glm-5.3",
  "choices": [
    {
      "index": 0,
      "message": {
        "role": "assistant",
        "content": "Hi! How can I help?"
      },
      "finish_reason": "stop"
    }
  ],
  "usage": {
    "prompt_tokens": 9,
    "completion_tokens": 12,
    "total_tokens": 21
  }
}

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API-Dokumentation des Anbieters

Source: AI Rate Card, https://airatecard.com/de/c/offer%3Aorcarouter%7Cz-ai/glm-5.3, prices checked 2026-11-04; seller's page: https://orcarouter.ai/models/z-ai/glm-5.3

Technische Details

ID: offer:orcarouter|z-ai/glm-5.3