LLM Reference
Z.ai

Using GLM-5.3 on Z.ai

Implementation guide · GLM-5 · Zhipu AI

Serverless

Z.ai exposes GLM-5.3 through model ID glm-5.3. Use the setup steps, sourced pricing, capabilities, and official provider links below to validate this route before deployment.

Last refreshed 2026-08-24. Next refresh: weekly.

Quick Start

  1. 1
    Create an account at Z.ai and generate an API key.
  2. 2
    Use the Z.ai SDK or REST API to call glm-5.3.
  3. 3
    You'll be billed $1.40/1M input, $4.40/1M output tokens.

Code Examples

Code examples for this provider have not been sourced yet.

Pricing on Z.ai

TypePrice (per 1M)
Input tokens$1.40
Output tokens$4.40

Capabilities

ReasoningJSON / Tool useStructured OutputsPrompt Caching

About GLM-5.3

GLM-5.3 is Z.ai's August 2026 coding-first post-training release on the same GLM-5.2 base model, focused on complex software engineering, long-horizon agentic coding, and emergent cybersecurity evaluation. It is available through the GLM Coding Plan and Z.ai API; open weights are scheduled after safety hardening. Official API model ID: glm-5.3.

Model Specs

Released2026-08-14
Context1m

Provider

Z.ai
Z.ai