Zhipu AI (Z.ai) · Open weights

GLM-5.3-Flash

Name: GLM-5.3-Flash
Author: Zhipu AI (Z.ai)

Weights are free to download and run locally or on your own servers – no per-call fees; licence terms apply.

Open weights Available 🛠 Tool calling 1M 🕒 Verified on 2026-10-10

Note: Weights are free; the official API model glm-5.3-flash is paid and not one of Zhipu’s free models.

Free conditions

Free conditions: Weights are free to download and run locally or on your own servers – no per-call fees; licence terms apply.
Free until: —
Rate limits: —
Sign-up / login: Not required
Real-name verification: —
Credit card: Not required
Region: —
Data use: When self-hosted, your data stays on your machine.

ⓘ Free to download; running it needs your own hardware or a paid host.

Specs

Provider: Zhipu AI (Z.ai)
Platform: Hugging Face
Type: Open weights
Modalities: Text · Vision
Parameters: 320B total / 18B active
Context length: 1M (1,048,576 tokens)
License: MIT
Tool calling: Yes
Released: 2026-08-25

How to access

Hugging Face: https://huggingface.co/zai-org/GLM-5.3-Flash

Official sources

Hugging Face – zai-org/GLM-5.3-Flash https://huggingface.co/zai-org/GLM-5.3-Flash
OpenRouter models API（工具调用字段 / tool-calling field） https://openrouter.ai/api/v1/models

🕒 Verified on 2026-10-10 · Free terms change often. Always confirm limits, data-use policy and regional availability on the official page before relying on a free tier.

GLM-5.3-Flash: paid API prices on 14 channels →

Free conditions

Specs

How to access

Official sources

Other free options from the same provider or model