CL (change list) is Google speak for a PR [1].

So, likely: Gemini Flash, Argon, Carbon [2]; and Claude Opus [3]. Maybe more.

https://google.github.io/eng-practices/review/developer/cl-d...

https://blog.google/innovation-and-ai/models-and-research/ge...

https://www.businessinsider.com/google-finally-lets-all-engi...

The models are great, but the experience resonates. It really depends on what you're doing, and ultimately, how much you care. A 10k LoC PR that feels “tacked on” should help you guess the size of the code base.

So do you care about getting 10k LoC to review, in a 1M LoC code base? How about 3 such PRs? How about reviewing another half a dozen, from colleagues? And doing that 2 or 3 times a week?