> ABOUT
A LIBRARY,
NOT A VERDICT.
> MISSION
ChatUFO is a public reading room for declassified UAP / UFO documents — government memos, witness reports, mission debriefs, and FOIA releases — gathered into a single searchable archive.
The site doesn't take a side on whether any of it is real. It just makes the source material easier to read, cite, and cross-reference.
> HOW IT WORKS
Every PDF is rendered to images and transcribed page-by-page by a vision model. Each page yields cleaned text, named entities, and a list of atomic claims with character offsets — so when the chat assistant cites a passage, we can highlight the exact span on the original page.
The chat answers are streamed by a separate model. It only answers from the corpus, and inline citations are clickable links back to the source page.
> DISCLAIMER
Documents are collected from public, declassified, and citizen-submitted sources. Some are official; some are anecdotal. The cited page is always the truth of what the assistant said — read it for yourself.
> STACK
- NEXT.JS · TAILWIND · SHADCN/UI
- NEON POSTGRES + PGVECTOR (HNSW, HYBRID SEARCH)
- GEMINI 3.1 FLASH LITE — VISION OCR + TAGGING
- OPENAI EMBEDDINGS (1536-DIM)
- DEEPSEEK V3.1 — RAG ANSWERS
- VERCEL BLOB — PAGE IMAGES