Show HN：cubic 2.0 – 提升我們的 AI 程式碼審核工具（準確度提升 3 倍，速度提升 2 倍）
Cubic 推出了其 AI 程式碼審核工具的 2.0 版本，聲稱可操作的評論增加了 3 倍，審核速度也提升了 2 倍。此次更新透過整合儲存庫上下文、即時文件和更佳的篩選機制，顯著提升了準確性。
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cubic 2.0
cubic levels up: cubic 2.0
Paul Sanglé-Ferrière
Jan 12, 2026
cubic 2.0
Over the past few months, we've been completely rebuilding cubic's AI review engine.
Today we're excited to announce cubic 2.0, the most accurate AI code reviewer available.
The numbers
Compared to three months ago:
3x more actionable: 20% → 60% of comments addressed in follow-up commits
2x faster: median time to review a PR was halved
40% better signal: upvote ratio went from 1.05 to 1.47
How we did it
Accuracy
AI review tools get noisy when they don't understand your repo. The diff might look wrong, but it's actually how you do things. Or the diff looks fine, but it breaks something specific to your setup.
We made a lot of changes here. Some examples:
Repo context: cubic now automatically reads READMEs, contributing guides, and context files in your repo to understand how things are supposed to work before it comments
Live documentation: cubic smartly reads the correct docs for the lib version you’re using
Better tooling: improved the tools cubic has access to crawl and fetch the relevant code and files it needs
Filtering: all of this context feeds into filtering out bad flags before they get posted
Speed
PRs are iterative. You push, get feedback, fix something, push again. Before, cubic would re-clone and re-analyze everything each time.
Now we cache codebases for a short window. Back-to-back pushes on the same repo skip the clone step entirely. This made reviews a lot faster, especially on bigger repos.
cubic vs the competition
We compared cubic against other AI code review tools on repos running both.
CodeRabbit
On repos running both cubic and CodeRabbit, cubic flags 50% more unique issues that users end up addressing. These are all bugs that users fix that CodeRabbit did not flag at all.
Additionally, 80% of comments that CodeRabbit posts that cubic doesn't end up not getting addressed by the user.
Cursor
On repos running both cubic and Cursor, cubic flags 2x more unique issues that users end up addressing. These are all bugs that users fix that Cursor did not flag at all.
The data shows cubic catches more of what matters.
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© 2025 cubic. All rights reserved.
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© 2025 cubic. All rights reserved.
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