Expired50% confidenceFactExact time
GLM-5.3-Flash was previously previewed on OpenRouter under codenames such as Oxalpha, processing over 20 trillion tokens in 6 days and becoming the model with the highest processing volume on OpenRouter.
1
Sources
50%
Confidence
Short-term (~14 days)
Relevance
9/5/2026
First Seen
This claim has expired. It is kept for the record and no longer describes the current state.
Valid until: 9/19/2026(expired)
Sources
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Related Claims
UnverifiedZhipu AI officially confirmed that the mysterious codename Ox Alpha model is GLM 5.3 Flash.68% similarUnverifiedGLM-5.3-Flash, from Z.ai, is a multimodal MoE model with a total of 320B (320 billion) parameters, with only 18B parameters activated at any given time.62% similarUnverifiedZhipu AI has launched the GLM-5.3 Flash lightweight model.62% similarUnverifiedGLM-5.3-Flash adopts a hybrid architecture of sparse attention and linear attention, and runs entirely on a domestically produced AI chip cluster.57% similarUnverifiedGLM-5.3-Flash has improvements over the previous generation GLM-5.2 in coding capability, robustness of agent interaction, and visual understanding.57% similar
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