Zhipu GLM-5.3-Flash revealed: 320B params, MIT open source
op7418 · x · 2026-08-26
The mysterious model Ox Alpha has been revealed as Zhipu's GLM-5.3 Flash. It consumed 23.2T tokens on OpenRouter, ending DeepSeek's dominance.
Key Specs:
- Performance: AA score 57 (ties Opus 4.8); SWE-bench subset score 63%.
- Scale: 320B parameters, new architecture, native multimodal, 1M context.
- Price: Limited discount is 1/40th of Opus 4.8.
- License: MIT open source, compatible with domestic chips.
The author tested it on complex frontend scenarios like recreating a WebGL glass cube poster and refactoring architecture, comparing it with DeepSeek V4 Flash and Claude Fable 5. It demonstrates Opus 4.8 level capabilities and excels in visual reconstruction tasks.
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