[colordrops]

Why would you assume cognitive bias? Any evidence? These things are indeed very expensive to run, and are often run at a loss. Wouldn't quantization or other tuning be just as reasonable of an answer as cognitive bias? It's not like we are talking about reptilian aliens running the whitehouse.

[muixoozie]

I'm just pointing out a personal observation. Completely anecdotal. FWIW, I don't strongly believe this. I have at least noticed a selection bias (maybe) in myself too as recently as yesterday after GPT 5.1 was released. I asked codex to do a simple change (less than 50LOC) and it made a unrelated change, an early return statement, breaking a very simple state machine that goes from waiting -> evaluate -> done. However, I have to remind myself how often LLMs make dumb mistakes despite often seeming impressive.

[oasisbob]

That sounds more like availability bias, not selection bias.