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I got this working with ONNX (thanks, Claude Opus 4.8) and now I have an interactive demo of the model running entirely in the browser here (~1.3GB download): h
by simonw 4mo ago
I got this working with ONNX (thanks, Claude Opus 4.8) and now I have an interactive demo of the model running entirely in the browser here (~1.3GB download): https://simonw.github.io/moebius-web/ https://simonw.github.io/moebius-web/ - code here: https://github.com/simonw/moebius-web https://github.com/simonw/moebius-web
(Claude Code transcript: https://gisthost.github.io/?58039ba5c1ca3ed177e8659168996ee4 https://gisthost.github.io/?58039ba5c1ca3ed177e8659168996ee4)
Wrote this up in more detail on my blog: https://simonwillison.net/2026/Jun/22/porting-moebius/ https://simonwillison.net/2026/Jun/22/porting-moebius/
- K0IN 4mo agoAwesome, I wanted to do the exact same thing (used gpt 5.5 + code) but it didn't get the model to work in onnx...
- g58892881 4mo agowell done! unet weights are in fp32. did you by any chance try something lower, fp16?
- da_grift_shift 4mo agoThe model considered it. There are 25 or so mentions of fp16 and fp32 weights across the 7500+ words of Markdown text it generated. So the next question might be: Did it make the right calls? https://github.com/simonw/moebius-web/blob/main/notes.md https://github.com/simonw/moebius-web/blob/main/notes.md https://github.com/simonw/moebius-web/blob/main/plan.md https://github.com/simonw/moebius-web/blob/main/plan.md https://github.com/simonw/moebius-web/blob/main/research.md https://github.com/simonw/moebius-web/blob/main/research.md https://github.com/simonw/moebius-web/blob/main/understanding.md https://github.com/simonw/moebius-web/blob/main/understandin...