Z.ai: glm-5.3-flash

GLM-5.3-Flash was released by Z.ai in August 2026. The model is the first natively multimodal model in the GLM-5 series, with 320B total parameters, 18B active parameters, hybrid attention, and support for text, image, and video inputs.

Modetext → text

Input price$0.3 per M tokens

Output price$0.15 per M tokens

Context length

Listed at

Z.ai

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Input price$0.3per 1M tokens

Output price$0.15per 1M tokens

Cache read$0.009per 1M tokens

Cache write—per 1M tokens

Performance

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Code Example

Replace <YOUR_API_KEY> with the API key generated on your token management page.

Authentication

All requests must include the Authorization: Bearer <TOKEN> header.

Endpoint Path

POST

Supported Parameters

ParameterTypeDefaultDescription

Rate Limits

GroupRPMTPMRPD

RPM = requests per minute, TPM = tokens per minute, RPD = requests per day. Limits apply by token group.

Pricing

ProviderBilling typePrice summary

ChatGLM

Per token

Input price$0.3per 1M tokens

Completion price$0.15per 1M tokens

Cache read price$0.009per 1M tokens

Cache write price$—per 1M tokens