Browser engine Very high Author claimed
ZeroWeb
An experimental cross-platform Rust browser whose authors say almost all product and engine code is written by AI, with a human limited to design, decisions, and verification.
The project ships ZeroWebView and ZeroBrowser, with in-tree DOM, CSS, layout, rendering, and networking. The website reported 15,100+ autonomous commits and a 78.85% pass rate on the full WPT corpus as of 2026-11-11. Neither the homepage nor the README names the harness or model.
Human involvement
Person directed, agent wrote the code. Strong first-party statement that humans do not write the implementation, but the tool and model are undisclosed.
Evidence
- Author README
人只负责方案设计、关键决策和结果验证，代码几乎全部由 AI 编写。
- Author blog
One human designs, decides and verifies; AI develops the Rust browser and its product code, with almost no code written by hand.
- Benchmark
full WPT pass rate 78.85% 1,789,714 / 2,269,629 upstream subtests passing, measured against the entire WPT corpus · 2026-11-11
Notes
Do not guess Claude, Cursor, or any other harness for this entry until the authors name one.