Case study · 02 / 06
Atlas
Internal tool · enterprise client
Backend, evaluation, UI
Domain-tuned retrieval over 9 years of regulatory filings for a compliance team.
Year
2025
Duration
11 weeks
Type
AI/RAG
Role
Backend, evaluation, UI
Atlas — citation surfacedrop final hero render here
01The challenge
What we were asked to solve.
A compliance team buried in 40,000+ filings needed answers in minutes, not days — but generic LLM tools hallucinated citations and missed the regulatory subtext their analysts lived in.
02The solution
What we shipped.
We built a hybrid retrieval pipeline (BM25 + dense + reranker) with a custom annotation UI for analysts to label citations. The system grades its own answers against a held-out eval set on every deploy.
solution screen · 4:3
03Tech stack
What it's built on.
PythonFastAPIPostgrespgvectorClaudeModal
04Results
What changed.
−72%
research time
9 yrs
of filings indexed
0
citation hallucinations in eval
screen 01 · primary view
screen 02 · detail
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