GLM-5.3
Z.AI's long-context model for big documents.
GLM-5.3 is a Z.AI model with a 1M-token context window. It reads images and lets you choose how hard it thinks.
Facts
- Context window
- 1M tokens
- Input
- Text and images
- Thinking effort
- Adjustable, up to High
- Speed
- Standard
- Available on
- All plans
- Intelligence rank at Vani
- #14
Based on data from Artificial Analysis (artificialanalysis.ai). The ranking is Vani's ordering of the models it offers and is not endorsed by Artificial Analysis. Source
Guide
Best for
- Long documents
- Writing
Strengths
- Large context window
Compare with
- Z.AIGLM 5.3 Flash
GLM 5.3 Flash is a Z.AI model with a 1M-token context window. It lets you choose how hard it thinks.
Compare side by side - OpenAIGPT-5.6 Terra
GPT-5.6 Terra is an OpenAI model with a 1M-token context window. It reads images and lets you choose how hard it thinks.
Compare side by side - AnthropicClaude Sonnet 4.6
Claude Sonnet 4.6 is an Anthropic model with a 1M-token context window. It reads images and lets you choose how hard it thinks.
Compare side by side
For developers
Use this model on the Vani API with the OpenAI- or Anthropic-compatible endpoints. Prepaid API prices per 1M tokens:
- Model id
- zhipu/glm-5.3
- Input
- $0.98
- Output
- $3.08
- Cached input
- $0.182