GLM-5.3-Flash, aka Ox Alpha, launches as open-weight model
Z.AI launched GLM-5.3-Flash on August 26, a 320B-parameter MoE with 18B active and 1M context. It nearly matches Claude Opus 4.8 on DeepSWE and coding benchmarks at a fraction of the cost, and is available on Databricks and Together AI.
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