Convert audio emails to Japanese transcripts with OpenAI GPT-4o & Google Suite

by SOLOVIEVA ANNA ✓ · 83 views · created 2025-12-17 · Document Extraction, AI Summarization

What this workflow does

This AI workflow has 20 nodes and runs on Gmail events. Along the way it connects Gmail, Google Drive, OpenAI and Google Sheets and 1 more. It also calls api.openai.com over HTTP.

How it runs

Trigger: On Gmail events.

1. Code: runs custom JavaScript code
2. Filter: keeps only the items that match a condition
3. Generate Year-Month Folder Path (Code): runs custom JavaScript code
4. Create Folder If Not Exists (Google Drive): work with folder
5. Merge: merges the data from its input branches
6. HTTP Request: calls api.openai.com (POST)
7. Upload Audio to Drive (Google Drive): uses Google Drive
8. Generate AI Summary (OpenAI): uses OpenAI
9. Convert Transcript to TXT (Convert to File): converts data to a file (to text)
10. Edit Fields (Edit Fields (Set)): sets 1 field: summaryContent

…plus 9 more steps. See the full node list below.

Services it uses

GmailGoogle DriveOpenAIGoogle SheetsSlack

HTTP calls to: api.openai.com

Before you upgrade to n8n 3.0

Nodes used (12)

• Gmail Triggern8n-nodes-base.gmailTrigger
• Coden8n-nodes-base.code
• Google Driven8n-nodes-base.googleDrive
• OpenAI@n8n/n8n-nodes-langchain.openAi
• Convert to Filen8n-nodes-base.convertToFile
• Google Sheetsn8n-nodes-base.googleSheets
• Gmailn8n-nodes-base.gmail
• Slackn8n-nodes-base.slack
• Filtern8n-nodes-base.filter
• Mergen8n-nodes-base.merge
• Edit Fields (Set)n8n-nodes-base.set
• HTTP Requestn8n-nodes-base.httpRequest

From the author

Overview This workflow turns audio attachments you receive by Gmail into Japanese transcripts and structured AI summaries, then saves everything to Google Drive and Google Sheets while notifying you via Gmail and Slack. Every time an email with a voice…

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