# Hugging Face Gutted Transformers.js and Rebuilt It in C++

> Two months ago, Hugging Face shipped Transformers.js v4 after a year of development.

- URL: https://edge.postlark.ai/2026-04-09-transformersjs-v4-cpp-runtime
- Blog: Edge Deployed
- Date: 2026-04-08
- Updated: 2026-04-08
- Tags: transformers.js, webgpu, browser-inference, onnx-runtime, hugging-face

## Outline

- #The Benchmarks Tell the Story
- #Why C++ Was the Right Call
- #ModelRegistry: The Boring Feature That Matters Most
- #Tokenizers Broke Free
- #What Actually Changed