Avancer Document Fact-Checker vs FAXTR

Avancer Document Fact-Checker extracts factual claims from PDF documents and checks them against live web sources. Each claim receives a verified, unverified, or source-not-found verdict, along with evidence and a confidence score. The service checks for factual errors, fabricated citations, and misinformation, and estimates how much of a document was written by AI. Its page estimates about 20 seconds of scanning per 1,000 words. Documents can be checked through the web service, self-hosted options, or an API that accepts a document URL or raw text and returns claim-level results with evidence and sources. Claim extraction and verification are listed for more than 70 languages. Files are processed for the scan and deleted afterward; documents are not used to train models or shared. A free plan includes one scan. Basic costs $12.99 per month and includes 1,299 monthly credits, text scanning, API and webhook access, email support, and PDF report export. A seven-day trial is listed. The maker also lists SOC 2 Type II and GDPR compliance, with ISO 27001 in progress.

FAXTR is a fact-checking platform for reviewing claims, headlines, articles, article URLs, and LLM-generated text. It aggregates verdicts from more than 100 fact-checking organizations across more than 50 countries, rather than making its own final judgment on whether a claim is true or false. Visitors can make three checks without signing up; signing up provides more checks and history. FAXTR says it gathers data from the Google Fact Check Tools API and Google News RSS three times daily. For integrations, it offers a REST API with JSON responses at https://api.faxtr.com/v1. Verification endpoints are in private beta and require access; the API also includes a /v1/guard endpoint for scanning LLM responses for misinformation. FAXTR Verified records source and receipt details, source-text and debunk matches, and a published SHA-256 fingerprint of an article body. Publishers add it with one server-rendered link per article, without JavaScript or a runtime dependency on FAXTR. The Free plan is free, billed monthly; Starter is $49 a month.