"Yes, ..." is how I notice all the models (4-5 that I use) in the last week or so have begun saying "No, ..." except for Kimi. I ask a lot of questions in the form of "Question about the feature: does it allow for ..." and the answer will reliably start with "Yes, the feature exists and does this thing you have labeled as [blank] which can be explained as ..." and later "However, ..." giving the information I requested (no, it doesn't allow for what you need). It's actually kind of uncanny.

I've started testing identical prompts across models, just to clearly see the "Yes, ..." with the "..but.." buried.

Example: "Can you view the salvage car in the lot before it is scheduled for sale?" "Yes, cars are viewable on the lot by members before they go on sale, blah, blah, blah." Then later "However, cars not yet scheduled for sale are not allowed to be viewed at the lot".

Example: "Can I control the keyboard shortcut Chrome has hijacked so that my existing OS keyboard shortcut will work even while Chrome has focus?" "Yes, chrome keyboard shortcuts, blah, blah, blah," and later "No, chrome does not allow ... ".

There is clearly some recent implementation of the idea that starting with "Yes, ..." has some benefit, but I'm having trouble adapting to the feeling of being lied to as a policy.