# Z.ai: GLM 5.3

Provider: z-ai  
Category: llm  
Model ID: `z-ai/glm-5.3`

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...

## Specs

- Context length: 1048576 tokens
- Max output: 262144 tokens
- Modalities: text
- Released: 2026-08-18

## Pricing

- Input: $1.40 per million tokens
- Output: $4.40 per million tokens

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Last verified: 2026-09-04T02:00:56.012Z  
Canonical URL: https://switchy.build/directory/models/glm-5-3