GLM 5.3

Name: GLM 5.3
Author: Z.ai

GLM-5.3 is a large-scale reasoning model from Z.ai, built for complex software engineering and long-horizon agent tasks. It supports text input and output with a 1M-token context window, and improves.

by Z.ai(0) 0 installs

Free

Free account. Installing gives you the manifest plus copy-paste snippets.

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About

Reference model card from the OpenRouter listing - model z-ai/glm-5.3. Prices are per million tokens as listed; ratings and installs below are from this marketplace.

GLM 5.3

Facts


Vendor	Z.ai
Context window	1,310,720 tokens
Max output	131,072 tokens
Input price	$0.91 / 1M tokens
Output price	$2.86 / 1M tokens
Input	text
Output	text
Tool calling	yes
Structured outputs	yes
Reasoning	yes
Open weights	zai-org/GLM-5.3

Endpoint: https://openrouter.ai/api/v1 (OpenAI-compatible), model z-ai/glm-5.3

Use it

Copy one of these into your project. Installing also returns the manifest and these snippets.

# after Install: the listing is in your workspace's routing pool - nothing else to configure
curl -s -X POST https://api.opensmartroute.ai/api/v1/route -H 'Authorization: Bearer $OSR_API_KEY' -H 'Content-Type: application/json' -d '{"text": "...", "plan": true}'
# or pin it on the OpenAI-compatible endpoint: {"model": "model-z-ai-glm-5-3", ...}

Manifest

An Open Capability Manifest: the router reads it to know what this does, what it costs and when to pick it.

model-z-ai-glm-5-3.ocm.jsonjson

{
  "ocm": "1",
  "id": "model-z-ai-glm-5-3",
  "kind": "llm",
  "name": "GLM 5.3",
  "description": "GLM-5.3 is a large-scale reasoning model from Z.ai, built for complex software engineering and long-horizon agent tasks. It supports text input and output with a 1M-token context window, and improves...",
  "publisher": "Z.ai",
  "version": "1.0.0",
  "capabilities": {
    "domains": [
      "general"
    ],
    "tags": [
      "llm",
      "z-ai",
      "openrouter",
      "open-weights",
      "reasoning",
      "tool-calling",
      "models"
    ],
    "languages": [
      "en"
    ],
    "modalities": [
      "text"
    ],
    "supports_tools": true,
    "supports_streaming": true,
    "context_window": 1310720
  },
  "quality_prior": 0.449,
  "examples": [
    "GLM-5.3 is a large-scale reasoning model from Z.ai, built for complex software engineering and long-horizon agent tasks. It supports text input and output with a 1M-token context window, and improves..."
  ],
  "primary": false,
  "metadata": {
    "source": {
      "provider": "models",
      "ref": "1787086655",
      "url": "https://openrouter.ai/z-ai/glm-5.3",
      "key": "z-ai/glm-5.3",
      "catalogue": "https://openrouter.ai/api/v1"
    },
    "model": "z-ai/glm-5.3",
    "pricing": {
      "input_usd_per_1m": 0.91,
      "output_usd_per_1m": 2.86,
      "cache_read_usd_per_1m": 0.169
    },
    "max_output_tokens": 131072,
    "output_modalities": [
      "text"
    ],
    "hugging_face_id": "zai-org/GLM-5.3",
    "reasoning": true,
    "created": 1787086655,
    "benchmarks": {
      "intelligence_index": 44.9,
      "coding_index": 74.8,
      "agentic_index": 53.4,
      "hub_downloads": 888143,
      "hub_downloads_total": 888143,
      "hub_trending": 48,
      "hub_likes": 1867,
      "osr_index": 45.9,
      "osr_coverage": 0.4
    }
  },
  "cost": {
    "usd_per_1k_tokens": 0.001885
  },
  "endpoints": [
    {
      "protocol": "openai",
      "url": "https://openrouter.ai/api/v1"
    }
  ]
}

Fetch it by URL: GET /api/v1/registry/model-z-ai-glm-5-3/manifest?version=1.0.0

About

GLM 5.3

Facts

Use it

Manifest

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