How to Fact-Check an AI-Generated Answer: Trace Each Claim to a Source

A fluent answer can still contain a false date, a missing qualification, or a citation that does not support the sentence. This guide is for checking one AI-generated answer before you reuse it. It is not a full research workflow or a statistical evaluation of a model.

Step 1: Separate the answer into claims

Underline statements that can be checked: names, dates, quantities, quotes, causal explanations, and recommendations presented as fact. Treat each claim separately; one correct paragraph does not validate the rest.

Step 2: Identify the exact question and scope

Write down the time period, jurisdiction, product version, population, or definition the answer assumes. Many apparent disagreements come from a changed date or a different meaning of the term.

Step 3: Find the original source

Search for a primary source such as a government page, standards body, official documentation, original study, or the company’s release note. Do not rely on a search-results page or a secondary summary when the primary evidence is available.

Step 4: Compare source and statement

Check whether the source actually supports the exact wording, denominator, date, and limitation. A survey of respondents is not automatically a statistic about an entire industry. A vendor feature page is not proof of independent performance.

Step 5: Record a correction

For each claim, mark supported, partly supported, contradicted, or not verified. Keep the source URL and the reason. Remove or qualify claims that lack evidence before using the answer.

Step 6: Check material claims twice

For high-impact or surprising claims, seek an independent authoritative source and ask a qualified reviewer. If sources conflict, preserve the disagreement and explain the date or scope rather than choosing the most convenient number.

Worked example: verify one fictional date claim

Suppose a fictional answer says, “The sample application closes on 12 May.” The fictional program page says, “Applications close at 5 p.m. on 13 May.” Record the answer’s claim and the source passage separately. The claim is contradicted on date; the source also adds a time that the answer omitted. Correct the sentence only after checking that the page applies to the same program and year.

Use a compact claim record:

• Claim: exact sentence, with any hidden date, geography, version, or population.
• Source: publisher, page title, URL, update date, and the passage that bears on the claim.
• Assessment: supported, partly supported, contradicted, or unresolved.
• Action: retain with context, qualify, correct, remove, or ask a qualified reviewer.

Do not count two pages that repeat the same press release as independent confirmation. For a disputed or high-impact point, locate the originating record and a genuinely independent authoritative source; if they still disagree, explain the scope difference or leave the point unresolved. Keep an audit note when a correction changes the conclusion, and never silently replace one unsupported exact number with another.

This is a method example using invented dates, not a real fact-check performed by AILooma. The broader source-led research workflow helps build a source trail before drafting.

Related reading

For research that begins with a question and tracks a source ledger, see the AI-assisted research workflow. For a team-wide evaluation rubric, read the risk-tier scorecard.

About the author

Femica Maydinda Harend writes practical technology guides for AILooma, emphasizing source checks and transparent limits.

Editorial note

This is a verification method, not a claim that AILooma audited a particular model answer. Check current original sources and consult an expert for consequential decisions.