No offense to the Gemini team, but I found coding with Codex-5.3 (high) just completely outperforms Gemini 3.1 Pro by an order of magnitude. But don’t worry, Google team, I’m still paying for the quota. Y’all still get paid regardless.
I am currently sitting at a codebase of 9.672 SLOC (non-blank, non-comment LOC) lines of code for a nonprofit customer, prior to today’s comprehensive changes. For side reference note I have over 39 years’ experience in software architecture and engineering and was a very accomplished coder ‘back in the day.’
Per Google search, a professional coder can turn out roughly 50 SLOC/day, meaning that 100 SLOC will take 1-2 days. Assuming a 1.5 day average per 100 LOC, Antigravity has done the equivalent of 14,508 days of coding or about 39-3/4 person-years of coding on this project during the last 2.5 weeks. Back in the day, I tended to run around 200 SLOC tested per day (I’m a really fast typist), but even that wouldn’t make a dent. It would just take half as many years.
I realize I’m breaking pretty much everyone’s brains by admitting I’m a 72-yo twice-retired software engineer turned AI security researcher, but - that’s how it is. You can try to imagine my surprise when I realized I was looking at the equivalent of about 20 years’ work done in < 3 weeks.
The change is upon us, my friends. If I can do this now, in another 6 mos. to a year, your grandkids will be able to do it and have it done really well enough. This is why I worry for my employed coding friends.