Comment by Vetch

The non-o-series models from OpenAI and non-Opus (although I have not tried the latest, so it's possible that it too joins them) from Anthropic are cloyingly sycophantic, with every other sentence of yours containing a brilliant and fascinating insight.

It's possible that someone already on the verge of a break or otherwise in a fragile state of mind asking for help with their theories could end up with an LLM telling them how incredibly groundbreaking their insights are, perhaps pushing them quicker, deeper more unmoored in the direction they were already headed.