# GLM-5.3

> GLM-5.3 —— 智谱旗舰推理模型，100 万 token 上下文。

Canonical: https://routemux.com/zh/zhipu/glm-5.3
Provider: Zhipu

## Key facts

| Field | Value |
| --- | --- |
| Model ID | zhipu/glm-5.3 |
| Official model ID | glm-5.3 |
| Context window | 1M |
| Max output | 128K |
| Input modalities | text |
| Output modalities | text |
| Capabilities | Reasoning, Tool Calling, Coding, Cache |
| Upstream release | 2026-08-20 |
| Availability | available |

## Pricing

- RouteMux input: $0.28 per 1M tokens
- RouteMux output: $0.88 per 1M tokens
- Official input: $1.4 per 1M tokens
- Official output: $4.4 per 1M tokens
- Cache read: $0.052 per 1M tokens
- Saving vs official: 80%
- Official price source: opencode_x0.20, verified 2026-08-30

Billing is prepaid wallet, charged per successful request only.

## API access

Base URL: https://api.routemux.com

Supported protocols:

- openai_chat
- openai_responses
- anthropic_messages

## Other variants in this family

- GLM-5.3 Flash (`zhipu/glm-5.3-flash`)