Moebius Model Reaches Browser via ONNX+WebGPU in Parallel Agent Session
Simon Willison used Claude Code as a parallel background agent to convert Moebius — a PyTorch/CUDA-only image inpainting model — to ONNX Runtime Web on WebGPU, making it run entirely in the browser with no server. The project doubles as a concrete demonstration of an emerging "parallel agent" workflow: spinning up a coding agent on a side task while another agent (Codex Desktop) grinds through a heavier primary job.
Generative Imagery
Model on a ribbon: WebGPU enables browser-native inference. FIG. 01