GLM-5.3-Flash matches top models at a fraction of the cost, and runs without Nvidia
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What happened
Z.ai releases GLM-5.3-Flash, an open-source model with 320 billion parameters that lands just three points behind the larger GLM-5.3 on Artificial Analysis's Intelligence Index, at a seventh of the cost. What's notable is that all of the inference traffic ran on Chinese AI chips instead of Nvidia hardware.
Summary assembled by rule from the sources below