LaunchAI ModelsAugust 29, 2026

GLM-5.3 Flash: Z.AI's 320B open-weight model rivals Opus 4.8

Z.AI's GLM-5.3 Flash packs 320B parameters (18B active), 1M context, and hybrid attention. On DeepSWE, it trails GLM-5.3 by 5.6 points at pass@1 but only 2.6 at pass@4, at 17x lower cost ($0.24 vs $3.99 per rollout).

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12 days · 5 reports · 13 community posts · from Aug 21

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