Eustace vs Factward

Eustace is a web-based fact-checking workspace for writers and researchers working with AI-assisted drafts. Users can paste text or import a URL, PDF, or Word file; scanned PDFs are processed with OCR. The service extracts candidate factual claims and displays their original quotes so users can select which to verify. Approved claims are checked against fresh web sources rather than the submitted document. Its ledger uses ten verdicts and three confidence levels, and the product says it signals uncertainty when evidence is thin or mixed. Users can inspect sources, attach private evidence, override a verdict with the change recorded, and export a Markdown report with claims, verdicts, confidence, and citations. Eustace says it does not sell user data or use documents to train AI models. The Free plan provides 25 lifetime verifications; Pro costs $19/month for 500 each month, with optional $0.05-per-claim overage turned off by default. Automated verdicts, confidence labels, and summaries can be wrong, incomplete, or out of date, so they are intended to support rather than replace editorial judgment.

Factward checks text, URLs, and PDFs by identifying factual claims and comparing them with web sources. Its AI model filters out opinions, predictions, and subjective statements, then retrieves up to five independent sources for each claim. Reports classify claims as Supported, Conflicting Sources, Refuted, or Insufficient Evidence, and include confidence, reasoning, linked sources, and a Trust Score. The service tracks when claims may have become stale and prompts users to check them again. A bookmarklet can send article text for review, and the Pro API can be used in a CMS or publishing pipeline. A beta Chrome extension highlights claims alongside verdicts and evidence, including when checking selected text from its context menu. Factward says submissions are used to produce results and are not sold or shared with third parties, though jobs and reports are stored in its database. Niche, paywalled, or very recent claims may lack evidence, and nuanced claims can be misinterpreted. The free plan allows two verifications per day; Pro costs $9 a month.