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.
Related event: Zhipu Open-Sources GLM-5.3-Flash: 320B MoE Multimodal at 1/10th the Cost(48 posts)→
More from Models
- China's StepFun releases Step 5 Preview weights: 600B MoE, 27B active, 1M context — Dr_Singularity · 2026-10-15
- StepFun open-sources Step 5 Preview: 600B MoE with 1M context, No. 2 on OpenRouter — Dr_Singularity · 2026-10-15
- Google says teams across the company are using Gemini 4 Argon on its hardest engineering problems — CurieuxExplorer · 2026-10-15
- Perplexity's new embedding models: index with a 9B model, search with 0.6B — antoine_chaffin · 2026-10-15
- 797GB of n-gram counts in CPU RAM let 1B models match 57% more compute — PangWeiKoh · 2026-10-15
- Leak: Moonshot's Kimi flagship 'x4' done with pre-training, K3.1 in internal testing — lyraxana · 2026-10-15