I understand that the Ultimate plan offers its own LLM-based features, but I personally can't justify spending an extra $162 on top of $240 for ChatGPT annually when I really only want ChatGPT to use Kagi instead of Bing for search. Otherwise, I would be cool with being pointed to an API that you guys expose to create my own plugin. I do understand it is hard to justify investing engineering time into a plugin.
Although I think people are too harsh on Bing's search quality, I want the results to be as relevant to the query as possible (particularly taking advantage of lenses). This would help make searches more granular and include an element of human supervision (the lenses) into it.