Fact-Check ChatGPT Product Claims with Bright Data + Gmail

Check your product claims—automatically—by fact-testing ChatGPT with Bright Data + Gmail

This n8n workflow asks ChatGPT product questions using Bright Data web-enabled search, extracts checkable claims, verifies them against your own trusted documentation/pricing pages, then emails you an HTML report via Gmail when anything is contradicted, missing, or can’t be verified.

What this workflow does

• Runs weekly or on demand: Scheduled to run every Monday morning or started manually from an n8n form submission (with an optional extra buyer question).
• Generates a capped list of buyer-style questions: Uses workflow settings to build a list of questions and trusted page URLs to target.
• Queries ChatGPT via Bright Data: Triggers a Bright Data dataset job with web search enabled, then polls until the ChatGPT snapshot is ready (or times out), downloads results, and cleans returned answer text and citations.
• Extracts claims with OpenAI: Uses GPT-5.6 to extract a limited set of checkable, product-specific claims from each ChatGPT answer.
• Verifies claims against your trusted pages: Fetches your documentation/pricing pages through Bright Data Web Unlocker, cleans page content, and compares each claim using GPT-5.6.
• Stores claim history: Upserts each claim and verdict into an n8n Data Table with first/last seen dates.
• Emails a report when needed: Sends an HTML email via Gmail when there are contradictions, missing coverage, unreadable pages, or nothing could be checked.

Use cases

• SaaS teams monitoring whether ChatGPT-generated answers align with their own docs and pricing pages
• Automation engineers needing an auditable claim-verification loop inside n8n
• Product or marketing owners who want weekly detection of unsupported or incorrect “buyer” claims

Technical details

• n8n nodes: if, set, code, no op, wait, gmail
• Integrations: Bright Data (dataset job + polling) and Bright Data Web Unlocker for trusted page retrieval
• AI model: OpenAI GPT-5.6 for claim extraction and verdict judgment
• Data storage: n8n Data Table for claim history and verdict tracking