what changed after the December 2025 model inflection , and why "spec to pull request" is now becoming a real production workflow.

Weirdly though, those things have started to blur for me already, which is quite upsetting.

Weirdly though, those things have started to blur for me already, which is quite upsetting. I thought we had a very clear delineation where vibe coding is the thing where you're not looking at the code at all. You might not even know how to program. You might be a non-programmer who asks for a thing, and gets a thing, and if the thing works, then great! And if it doesn't, you tell it that it doesn't work and cross your fingers.

LLMs accelerate the wrong part

the more you rely on AI to write code, the less you're able to oversee what the AI writes