Unfortunately, I tried describing a few terms across philosophy and psychology and for all of them, the entry I was aiming for was only around the ~20th rank. (Far more popular but less accurate items were populated above it -- e.g. no matter what I typed trying to define a specific modality of psychotherapy, "psychotherapy" was always the #1 result.)
In contrast, I've used ChatGPT to identify the names of certain niche subfields when I couldn't remember what they were called, and it was right every time.
I love the idea of an AI service specifically designed to identify the names of things from descriptions. But I don't think restricting it to Wikipedia (or Wikipedia page titles) is the right approach, and it seems like general-purpose LLM's are doing a great job.
Still, as a proof of concept and as something you can run locally in the browser, this is extremely cool.