Release dates
— The Z.ai / AutoClaw page’s structured metadata dates GLM-5.3-Flash to 2026-09-15 and confirms MIT-licensed weights with native text, image, video, and file support. ↗
GLM-5.3-Flash
The first natively multimodal GLM-5 Flash model: 320B total, 18B active parameters, hybrid sparse and linear attention, and text, image, video, and file understanding.
Z.ai’s technical update on 2026-09-28 UTC confirms GLM-5.3-Flash is available to all GLM Coding Plan users and in AutoClaw; its official weights use the MIT License.
MODEL NUMBER132
- First public date
- 2026-09-15
- Organization
- Z.ai
- Family
- GLM
01
Specifications
Only published specifications are shown.
02
Overview
Why it mattered
Z.ai further disclosed a 30T-token multimodal pretraining corpus and Manifold-Constrained Hyper-Connections (mHC), reporting about 3× less attention compute and a 4.4× smaller KV cache than GLM-5.3.
03
Architecture & capabilities
Attention
Sparse AttentionLinear Attention
Model capabilities
Native multimodalLong-horizon agentCoding
Connected tools
Computer use
04
Release history
The Z.ai / AutoClaw page’s structured metadata dates GLM-5.3-Flash to 2026-09-15 and confirms MIT-licensed weights with native text, image, video, and file support.
View source05
Related models
Select a card to view the related model.
06
Sources
Suggest a correction
Copy this template, add the field, proposed value, and primary source, and share it with the archive maintainer.