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Convert Gmail emails to Telegram voice messages with GPT-5 and Inworld TTS

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Created by: AI/ML API | D1m7asis || d1m7asis

AI/ML API | D1m7asis

Last update

Last update 22 days ago

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Who’s it for

For makers, founders, and productivity nerds who want to listen to their inbox instead of reading it.
No servers, no hosting — all done with n8n, a Telegram bot, and AI/ML API (LLM + TTS).

What it does / How it works

This workflow listens for new Gmail emails, extracts the sender, subject, date, and snippet, generates a 2–3 sentence natural summary using GPT-5 via AI/ML API, then converts the text into a lifelike voice message using Inworld TTS-1-Max.
The final audio file is downloaded and instantly delivered to your Telegram via a bot.

A separate auxiliary flow captures your Telegram chat_id once, stores it in a Data Table, and the main flow reuses it every time — no hardcoding required.

High-level flow:

  1. Gmail Trigger detects new incoming email
  2. Code node builds a clean emailData block
  3. AI/ML API (GPT-5) generates a natural spoken summary
  4. AI/ML API (Inworld TTS-1-Max) converts summary → voice
  5. Audio file is downloaded
  6. Voice message is sent to the same Telegram chat

Requirements

  • A working n8n instance (self-hosted or cloud)

  • Gmail OAuth2 credentials

  • Telegram bot token from @BotFather

  • AI/ML API key

    • Base URL: https://api.aimlapi.com/v1
    • Supports GPT-5 and Inworld TTS-1-Max

Set up steps

  • Create a Telegram bot via @BotFather and add Telegram API credentials in n8n
  • Create an AI/ML API credential using your API key
  • Add Gmail OAuth2 credentials for inbox access
  • Import the workflow JSON
  • Open nodes and attach the correct credentials (no hardcoded tokens inside nodes)
  • Run the Telegram Trigger once and send any message to your bot — this saves your chat_id
  • Activate your workflow and receive your first voice-summary

How to customize

  • Replace GPT-5 with another LLM from AI/ML API (same schema)
  • Change prompt style: tone, structure, language, or verbosity
  • Add language selection or multi-voice support
  • Add filters (e.g., only important emails, only starred emails)
  • Log all activity to Google Sheets or a database
  • Add IF conditions: voice only during certain hours, weekday vs weekend rules
  • Add rate-limits or user allowlists
  • Change the voice model for different notification styles: corporate, friendly, narrator