Zhipu Releases GLM-5.3-Flash: 320B MoE Open Source Under MIT

realsohamparekh · x · 2026-08-26

ZAI has officially released GLM-5.3-Flash (previewed as Ox Alpha), a 320B-parameter (18B active) MoE model open-sourced under the MIT license. It features native multimodality and a 1M-token context window. Third-party TerminalBench evaluations show strong performance in Shell/DevOps reliability and spec-driven implementation (e.g., SVG handling), though it faced timeouts with dynamic imports.

Related event: Z.ai Open-Sources GLM-5.3-Flash: 320B MoE Rivals Claude Opus 4.8 at Fraction of Cost(26 posts)→

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