Architecture Digest

Sep 19, 2026 · Artificial Intelligence

Alibaba's Open Code Review: Deterministic Pipelines Slash Token Costs 9x

Alibaba open-sourced Open Code Review, an AI code review tool used internally for two years, which combines a deterministic rule engine for file selection and line positioning with LLMs for judgment only, achieving higher precision and 9x lower token consumption than Claude Code on a benchmark of 200 real PRs.