alexcsaky/reliability-dataset

Reliability dataset

Reliability scores for public figures and organisations, with every claim, verdict and evidence link behind them, built by the Reliability API (https://epistacklabs.com). A subject's public statements are sampled, the checkable claims are checked against the public record, and each claim carries a verdict linked to its quote and its evidence. The score is the share of resolved claims that held up, per kind of claim and overall, with an 80% interval and a confidence level.

Verdicts are made automatically and are not individually reviewed by a person. Two model judges from different model families judge each claim; judges_disagree marks where they differed. Two judges agreeing is consistency, not accuracy. The method, its measured results and its caveats: https://epistacklabs.com/methodology.

Releases

Each release is a folder (v1/, ...) with:

• subjects.csv: one row per subject, with the latest report and how to reply (respond_url).
• scores.csv: one row per subject and claim type (and overall): score, interval, resolved count, confidence.
• claims.csv.gz: one row per claim: quote, source, verdict, rationale, evidence links, whether the judges disagreed, how many evidence items are fact-checks.
• changes.csv: verdict changes (old and new verdict, when, why, evidence added).
• claims.jsonl.gz: every record in full, one JSON object per line.
• infographics.html: the release in charts, one self-contained page; infographics.json holds its figures.
• datapackage.json (the columns) and README.md (what the release is, its method version, measured results, caveats, scope and licence).

CHANGELOG.md lists the releases. The latest is v1 (28 October 2026): 31 public figures.

Look a subject up

No key needed:

curl "https://epistacklabs.com/v1/lookup?name=Jensen%20Huang"

Scope and right of reply

Public figures and organisations only, from their public professional output; nothing about private life; no inferred motives; party-political claims tagged and left out of scores; political candidates and officials in post out of scope; neutral wording throughout. A subject can reply to any claim with a correction or counter-evidence through the respond_url on their row.

Licence

CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Quotes are short, attributed and linked to their source; no page text is included. Cite as: Reliability dataset v1, epistacklabs.com, 2026.