n8n Brand Mention Tracker: ChatGPT, Claude & Gemini to Google Sheets

Track how ChatGPT, Claude, and Gemini mention your brand—automatically log citations in Google Sheets

This n8n workflow runs buyer-intent prompts against OpenAI (ChatGPT), Anthropic (Claude), and Google Gemini, then uses Claude as a judge to score whether your brand is mentioned—capturing citation, position, tone, URL, and notes in a Google Sheets audit log.

What this workflow does

• Starts a tracking run via manual trigger or a monthly schedule (new RunId + timestamp).
• Configures your brand details (brandName, brandDomain, brandDescription) and generates the list of prompts to evaluate.
• Calls all three engines in parallel (ChatGPT, Claude, Gemini) with retries enabled.
• Normalizes responses to plain text while preserving engine/prompt metadata.
• Judges the answers using Claude to produce JSON scoring: Cited?, Position, Tone, any URL, and short Notes.
• Appends one row per engine and prompt to Google Sheets, using the headers: RunId | RunDate | Engine | Prompt# | Cluster | PromptText | Cited? | Position | Tone | URL | Notes.

Use cases

• Monitor whether your SaaS brand appears in AI-generated recommendations for high-intent search queries.
• Compare brand visibility across ChatGPT vs Claude vs Gemini over time with a consistent monthly log.
• Validate messaging changes (brandDescription updates) and see how citation frequency and tone respond.

Technical details

• n8n nodes used: manual trigger, set, code, merge, sticky note, Google Sheets.
• Integrations/credentials required: OpenAI, Anthropic (Claude), Google Gemini, and Google Sheets.
• Normalize provider outputs, then parse the judge JSON and append results to your configured spreadsheet ID and sheet name.

Get repeatable brand mention tracking for n8n automation engineers and SaaS operators—without manual copy/paste.