GLM-5.3-Flash Released: Native Multimodal, 1M Context, 10x Cheaper

ying11231 · x · 2026-08-27

Zai officially released GLM-5.3-Flash (previously Ox Alpha). Features: First native multimodal model in the GLM-5 series with visual self-correction; supports 1M token context; 320B total (18B active) MoE architecture under MIT license. Performance: Outperforms GLM-5.2 at 1/10th the cost; hybrid sparse + linear attention enables efficient long-context. Capabilities: Extends beyond coding to professional workflows like slides, docs, spreadsheets, and finance research. Ecosystem: Day-0 support available via SGLang; weights, API, and tools are now open.

Related event: Zhipu open-sources GLM-5.3-Flash, a 320B MoE frontier model(38 posts)→

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