---
title: "GLM-5.3"
description: "Z.ai's open-weights model, post-trained for complex coding and long-horizon tasks."
canonical: "https://vetted.tools/models/glm-5-3"
source: "https://vetted.tools/models/glm-5-3.md"
---

# GLM-5.3

Z.ai's open-weights model, post-trained for complex coding and long-horizon tasks.

Source: https://vetted.tools/models/glm-5-3

- Slug: `glm-5-3`
- By [Z.ai](https://vetted.tools/companies/z-ai) ([z.ai](https://z.ai), checked 2026-09-26)
- Official page: [https://z.ai](https://z.ai)

## Facts

- License: other ([Hugging Face](https://huggingface.co/zai-org/GLM-5.3), checked 2026-09-25)
- Capabilities: Implicit caching, Reasoning, Tool use, Structured output ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Context window: 1M tokens (1,000,000) ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Gateway ID: zai/glm-5.3 ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Input: $1.40 per 1M tokens ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Max output: 1M tokens (1,000,000) ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Takes: Text ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Returns: Text ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- No training on prompts: Offered by some providers on the Vercel AI Gateway, when you turn it on ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Output: $4.40 per 1M tokens ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Released: Aug 18, 2026 ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Type: Language ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)
- Zero data retention: Available on a paid Vercel plan through the AI Gateway, from some providers on it (you turn it on) ([Vercel AI Gateway](https://ai-gateway.vercel.sh/v1/models), checked 2026-09-25)

## Usage

- 1,131,785 downloads on [Hugging Face](https://huggingface.co/zai-org/GLM-5.3) over the 30 days to 2026-09-25.
- 212,188,726 requests and 15,417,126,778,096 tokens on [OpenRouter](https://openrouter.ai/z-ai/glm-5.3) over the 31 days to 2026-09-25.

## Elsewhere on this site

- Home: https://vetted.tools/index.md
- Use cases: https://vetted.tools/use-cases.md
- Tools: https://vetted.tools/tools.md
- The brief: https://vetted.tools/brief.md
- Assessment: https://vetted.tools/assessment.md
- Site summary for agents: https://vetted.tools/llms.txt
- Every published page in one file: https://vetted.tools/llms-full.txt
- Every URL the site publishes: https://vetted.tools/sitemap.xml