Zai Open-Sources GLM-5.3 Flash, a 320B Native Multimodal Model
Zai has open-sourced GLM-5.3-Flash under MIT license: the first natively multimodal model in the GLM-5 series, with 320B total parameters (18B active), a 1M token context window, hybrid attention, and roughly half the cost while approaching top performance on DeepSWE.
2026-08-27 ~ 2026-08-28 · 3 related posts
- Episode 1: GLM-5.3-Flash Efficiency Breakdown: Half the Activated Parameters, One-Tenth the Cost(2026-08-26, 2 posts)
- Episode 2: Zai Open-Sources GLM-5.3 Flash, a 320B Native Multimodal Model(2026-08-27, 3 posts)
- Zai open-sources GLM-5.3-Flash: 320B-parameter model running on Chinese chips — ccerrato147 · 2026-08-27
- Zai releases GLM-5.3 Flash: 320B params, 2x efficiency on DeepSWE — togethercompute · 2026-08-28
1 near-duplicate retellings: togethercompute