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n8n AI Podcast Generator Workflow

n8n AI Podcast Generator Workflow

Automate two-host AI podcasts from PDFs

Voice Cloning

n8n AI Podcast Generator Workflow

The n8n AI Podcast Generator Workflow is a developer-focused, free ai podcast generator that transforms any PDF into a two-host podcast episode using advanced AI. Designed for technical teams, content creators, and automation engineers, this workflow leverages the power of n8n’s automation engine, OpenAI’s GPT-5, and Smallest AI’s ultra-fast TTS to deliver high-quality, multilingual audio content at scale.

With native support for nine Indian languages and voice cloning, this workflow stands out as the best ai podcast generator for organizations seeking to automate content repurposing, internal communications, or educational briefings. Its seamless integration with Gmail and other delivery channels, plus pure JavaScript audio concatenation, makes it a top choice for developers looking for a robust ai podcast clip generator that is both flexible and production-ready.

QUICK FACTS

Website

https://n8n.io/workflows/15350-generate-two-host-pdf-podcasts-with-gpt-5-smallest-ai-and-gmail/

Category

Voice Cloning

Primary Use Case

Automated generation of two-host podcast episodes from PDF documents using AI-driven STT-LLM-TTS pipelines.

API Availablity

API access via n8n workflow triggers (Form, Webhook) and integration with OpenAI and Smallest AI APIs.

Typical Users

Developers, automation engineers, content teams, educators, internal communications specialists, and AI researchers.

Pricing Model

Free tier available via Smallest AI; n8n offers both free and paid plans.

What

n8n AI Podcast Generator Workflow

Does

Technically, the workflow operates as a pipeline: PDF text is extracted and sent to an LLM (GPT-5) to generate a structured, two-host podcast script. Each host’s lines are routed to Smallest AI’s TTS engine for rapid, high-fidelity voice synthesis (including voice cloning). The resulting audio clips are concatenated in JavaScript and delivered via email or other channels.

Developers typically build:

- Automated podcast generation from whitepapers, reports, or memos

- Multilingual audio briefings for internal teams

- Personalized podcast episodes with cloned voices

- AI podcast clip generator for social media

- Educational audio content from lecture notes

- Automated content repurposing for marketing

Key Features

Lightning-Fast Podcast Generation

Generates a 4-minute podcast from a 5-page PDF in about 60 seconds, with sub-100ms TTS latency using Smallest AI Lightning.

Multilingual & Voice Cloning Support

Native support for 9 Indian languages and custom voice cloning with just a 10-second sample, enabling highly personalized and localized podcasts.

No-Code/Low-Code Automation

Leverages n8n’s visual workflow builder, allowing developers to customize triggers, delivery channels, and podcast formats without deep coding.

Flexible Integration & Delivery

Integrates with Gmail, Slack, Telegram, Google Drive, and more for seamless podcast delivery and workflow automation.

Pure JavaScript Audio Concatenation

Concatenates audio clips in JavaScript, eliminating the need for FFmpeg and ensuring compatibility with n8n Cloud environments.

Common Use Cases

Enterprise Knowledge Briefings

Convert internal reports and memos into engaging, two-host audio briefings for distributed teams.

Educational Content Automation

Transform lecture notes or research papers into multilingual podcasts for students and educators.

Marketing Content Repurposing

Automatically generate podcast episodes and clips from blog drafts or whitepapers for content marketing.

Flexible Integration & Delivery

Deliver company updates and policy changes as personalized audio podcasts to employees’ inboxes.

Podcast Clip Generation for Social Media

Create short, shareable podcast clips from longer episodes for social media engagement.

Podcast Clip Generation for Social Media

Create short, shareable podcast clips from longer episodes for social media engagement.

Alternatives

Smallest AI

recommended

Go-to

Visit

AGI agents under 10B parameters for ultra-fast, accurate speech and text conversations. 

Scale to billions of enterprise interactions with minimal latency

Luvvoice

Visit

Instant AI Voice Cloning and TTS API

Respeecher

Visit

AI Voice Cloning for Content Creators

fish.audio

Visit

Next-Gen Voice Cloning & AI Audio APIs

Frequently Asked Questions

Is this a free ai podcast generator?

Yes, the workflow leverages Smallest AI’s free tier and n8n’s free plan, allowing users to generate podcasts at no cost for moderate usage.

Which LLMs and TTS engines are supported?

The workflow natively supports OpenAI GPT-5 and GPT-4o-mini for script generation, and Smallest AI Lightning for TTS, with extensibility to other models via n8n nodes.

How fast is the podcast generation process?

A typical 5-page PDF is converted into a 4-minute podcast in about 60 seconds, with sub-100ms TTS response time for each audio segment.

Can I customize the podcast format and delivery?

Yes, developers can modify the LLM prompt for different formats (interview, debate, monologue), swap delivery channels (Gmail, Slack, Telegram), and use cloned voices for hosts.

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Clone voices in n8n workflows

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Custom Voice Clones from your dashboard

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ON THIS PAGE

  • Introduction

  • What it does

  • Key Features

  • Use Cases

  • Alternatives

  • FAQs