Show HN: Prexist – AI-powered search for products (now 3x faster with Exa AI)

[e33or-assasin]

Hey HN

I built Prexist, an AI-powered tool that helps founders, PMs, and VCs quickly find out if their startup idea already exists, across 8 major platforms like Product Hunt, YC, GitHub, Crunchbase, and the App Stores.

Until recently, running searches across all these platforms in parallel took ~60 seconds. We’ve just integrated Exa AI for search orchestration, and it’s now 3× faster while returning more relevant, semantically matched results.

What it does:

- Uses AI to understand your product idea and generate smart search queries - Searches 8 discovery and innovation platforms simultaneously - Lets you generate and share reports with a single link

Use cases:

- Founders validating product ideas - Product teams doing competitor scans - VCs doing due diligence on new investments

Would love your feedback, especially from anyone who’s tried automating multi-platform searches.

Happy to answer technical questions or talk about how we can improve the product further.

- Team Prexist