How does AI due diligence avoid hallucinated findings?
Last reviewed: 18 September 2026
By refusing to treat an unsourced statement as a finding. In Reuben AI every extracted claim is bound to the document it came from and tiered as self-reported, verified or triangulated. A claim with no traceable source is flagged rather than included, and is excluded from the investment committee memo by default. The safeguard is structural, not a prompt instruction: the memo is generated from tiered findings, so a sentence that cannot point at evidence has nowhere to enter the document.
The failure mode people worry about is a fluent paragraph that sounds like diligence and is not. It happens when a model is asked to summarise and the summary itself becomes the deliverable. Nothing downstream can then distinguish an extracted fact from a plausible reconstruction of one.
The fix is to change what the deliverable is. Extraction produces claims, and a claim is not valid without a document reference and a tier. Self-reported means the source is material the target supplied. Verified means it is confirmed against an independent document. Triangulated means two or more independent sources agree. Section-level confidence in the memo reflects the tiering beneath it, so weak evidence reads as weak rather than being smoothed into prose.
The practical test is whether a partner can challenge any line in the room and get an answer from evidence. If the answer is recollection, the safeguard is not there.
How Reuben AI compares
How diligence outputs differ in provenance and defensibility.
| Attribute | Reuben AI | Generic AI chat | Manual review |
|---|---|---|---|
| Unit of output | Tiered claim with document reference | Free-text summary | Analyst notes |
| Unsourced statements | Flagged, excluded from the memo by default | Indistinguishable from sourced text | Depends on the analyst |
| Confidence signalling | Section-level, derived from claim tiers | None | Informal |
| Challenge in the IC | Answered from the source | Answered from memory | Often deferred to follow-up |
Frequently asked questions
What happens when the evidence simply does not exist?
The gap is recorded as an open risk in the memo instead of being filled. Committees make better decisions with a visible gap than with a confident sentence covering it.
Can a reviewer see which documents a finding came from?
Yes. Each claim carries its source document and location, so a reviewer moves from the finding to the underlying page rather than searching the data room again.
Does this slow the work down?
Extraction and tiering happen together, so the cost is not additional review time. The time saved is in the IC, where challenges resolve in the meeting rather than in a follow-up week.
Are reference calls treated the same way?
Reference notes carry attribution and confidence, and back-channel signals are tagged and weighted separately from formal references.
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