Glass-box RAG
Every RAG app shows you the answer and hides the retrieval. This one does the opposite — watch each chunk get ranked and scored, catch the near-misses just below the cutoff, and see exactly where keyword (BM25), semantic, and hybrid break on the same question. Then stream a grounded, cited answer built from the sources it actually retrieved.
Under the hood
- Retrieval runs entirely in your browser — BM25 for keyword, MiniLM embeddings for semantic, and a weighted blend for hybrid. No keys, no setup.
- The trace shows every chunk with its similarity score, plus the near-misses that fell just below the top-k cutoff — the step other RAG apps hide.
- The answer is generated from only the retrieved chunks and streamed with inline citations, on a free-tier model with automatic failover.
- Corpora: cricket, football, and Morse code — compact, fact-checked docs where retrieval visibly succeeds and fails.
Corpus
Answer
Ask a question to see a grounded, cited answer.
Run a query to see the retrieval trace.