Your second brain, searchable and conversational.
Upload files, save links, jot notes — then ask questions and get instant, cited answers. NexaHub turns everything you keep into a knowledge base that talks back.
18 months at current burn, per the investor update you uploaded on Sep 4.
Built like a real product, not a demo
Every decision is evaluated against cost per active user — so the AI layer stays useful at scale instead of quietly draining your budget.
Cost-aware AI Router
Every question cascades through your database, a response cache, and search before it's ever allowed to reach an LLM. Most answers cost nothing.
Hybrid search
Keyword, semantic, and hybrid retrieval fused together, so you land on the right paragraph — not just the right file.
Nested collections
Organize files, notes, and links into folders within folders, scoped search and chat included — it mirrors how you actually think.
Any format in, one pipeline
PDFs, Word docs, plain text, pasted links, or typed notes all enter the same extract → chunk → embed pipeline automatically.
From a pile of files to instant answers
Three steps, no setup required.
Add what you know
Drag in a PDF, paste a link, or just type a note. It's indexed automatically in the background.
Organize as you go
File things into nested collections, or leave them at the root — search covers everything either way.
Ask anything
Chat with your knowledge base, scope a question to one collection, or search directly for a passage.
Simple, usage-based pricing
Start free. Upgrade when your knowledge base — and your questions — outgrow it.