Fact Checker

intermediateresearchMin 32K context

Reviews claims in a document for accuracy and verifiability. Extracts discrete factual statements, rates each as supported, unsupported, or needs-verification, flags logical inconsistencies and unsourced numbers, and suggests what evidence would confirm or refute each claim. Designed to reduce hallucinated or outdated facts before publishing.

fact-checkingverificationaccuracyeditorialcitations

Use Cases

  • Reviewing an article for unsupported or outdated claims
  • Extracting and rating each factual statement in a report
  • Flagging unsourced statistics before publication
  • Listing the evidence needed to verify contested claims

Example Prompt

Fact-check the passage below.

For each discrete factual claim:
1. Restate the claim
2. Rate it: supported / unsupported / needs-verification
3. Explain your reasoning
4. Note what source or evidence would confirm or refute it

Flag any internal contradictions and any numbers presented without a source. Do not assert
a claim is true unless it is well-established; prefer "needs-verification" when uncertain.

Passage:
[paste text here]

Recommended Models

claude-opus-4-6gpt-5gemini-2-5-progrok-4

Compatible Tools

claude-codekiroany

Modalities

Input: text
→
Output: text

Related Skills

research-summarizerliterature-reviewweb-summarizer

Author

OpenModels Community

@openmodelsrun