If you use more than one AI assistant, how do you find something you wrote months ago?

Genuine question, because this is the problem I have spent the last year on.

I use ChatGPT for drafting, Claude for long documents and Gemini for anything involving Google files. The result is that my history is in three places, none of them searchable in a useful way, and I regularly know I wrote something without knowing where.

What I ended up building indexes conversations locally in the browser and searches all of them at once, plus folders and export that work the same way on each. It is called AI Toolbox and version 3.0 went live on Product Hunt this morning, which is the only reason I am writing this today rather than any other day.

Mostly I am curious how other people handle this. Multiple browser profiles? Copying everything into Notion? Just accepting the loss?

https://www.producthunt.com/posts/ai-toolbox-3-0