Free Public Demo • Deterministic Retrieval Verification
BookProof free public demo
Upload a book and golden questions. The backend runs the deterministic LongBook retrieval-evaluation engine — local embeddings, no model API calls. Free to try, limited to one run per IP per day; your inputs are processed temporarily and deleted immediately after the run.
Retrieval-eval (deterministic)
No paid model API
Local embeddings (hashing_numpy)
1 run / IP / day
Inputs deleted after run
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