Generate YouTube SEO content & thumbnail from video scripts with GPT-4o & Runway

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

Who’s it for This template is ideal for YouTube video creators who spend a lot of time manually generating SEO assets like descriptions, tags, titles, keywords, and thumbnails. If you're looking to...

Best for

Content Creation automation workflows
Multimodal AI automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.googlesheetstrigger, n8n-nodes-base.noop, n8n-nodes-base.if, @n8n/n8n-nodes-langchain.openai, n8n-nodes-base.set, n8n-nodes-base.googlesheets, n8n-nodes-base.code, n8n-nodes-base.httprequest

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Janak Patel.

Original n8n.io source

1.1 Workflow description

Title: Generate YouTube SEO content & thumbnail from video scripts with GPT-4o & Runway
Workflow name: Generate YouTube SEO content & thumbnail from video scripts with GPT-4o & Runway

Who’s it for

This template is ideal for YouTube video creators who spend a lot of time manually generating SEO assets like descriptions, tags, titles, keywords, and thumbnails. If you're looking to automate your YouTube SEO workflow, this is the perfect solution for you.

How it works / What it does

Connect a Google Sheet to n8n and pull in the Hindi script (or any language). Use OpenAI to generate SEO content:

Video description
Tags
Keywords
Titles
Thumbnail titles etc.

Use the generated description as input to create a thumbnail image using an image generation API. Store all outputs in the same Google Sheet in separate columns. Optionally, use tools like VidIQ or TubeBuddy to test the SEO strength of generated titles, tags, and keywords.

💡 Note: This example uses Runway’s image generation API, but you can plug in any other image-generation service of your choice.

Requirements

A Google Sheet with clearly named columns
Hindi, English, or other language scripts in the sheet
OpenAI API key
Runway API key (or any other image generation API)

How to set up

You can set up this workflow in 15 minutes by following the pre-defined steps.
Replace the manual Google Sheet trigger with a scheduled trigger for daily or timed automation.
You may also swap Google Sheets with any database or data source of your choice.
No Google Sheets API required.
Requires minimal JavaScript or Python knowledge for advanced customizations.

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Google Sheets Trigger

Type / Role: n8n-nodes-base.googleSheetsTrigger - googleSheetsTrigger
Config choices: Version 1

Block 2 - No Operation, do nothing

Type / Role: n8n-nodes-base.noOp - noOp
Config choices: Version 1

Block 3 - If English script is available or not

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.2

Block 4 - Generating English Script

Type / Role: @n8n/n8n-nodes-langchain.openAi - openAi
Config choices: Version 1.8

Block 5 - Creating field for english script

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 6 - Adding English script to GSheet

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.6

Block 7 - Generating Youtube Tags, Keywords and more.

Type / Role: @n8n/n8n-nodes-langchain.openAi - openAi
Config choices: Version 1.8

Block 8 - JS Code for separating different topics

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 9 - Updating row in GSheet with Tags, Description so on

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.6

Block 10 - Python code for creating Dynamic Prompt

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 11 - HTTP Request calling Runware API for generating Thumbnail image

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 12 - Updating Gsheet with Thumbnail Image

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.6

Block 13 - Sticky Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 14 - Sticky Note1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 15 - Sticky Note2

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 16 - Sticky Note3

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 17 - Sticky Note4

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 18 - Sticky Note5

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 19 - Sticky Note6

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

3. Summary Table

Workflow	Generate YouTube SEO content & thumbnail from video scripts with GPT-4o & Runway
Complexity	advanced
Nodes	19
Categories	Content Creation, Multimodal AI
Author	Janak Patel
Published	01 Aug 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/6812/6812.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Content Creation workflows Multimodal AI workflows

Frequently asked questions

What does Generate YouTube SEO content & thumbnail from video scripts with GPT-4o & Runway do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Content Creation, Multimodal AI use case.

Janak Patel

2 workflows

Nodes

n8n-nodes-base.googlesheetstrigger n8n-nodes-base.noop n8n-nodes-base.if @n8n/n8n-nodes-langchain.openai n8n-nodes-base.set n8n-nodes-base.googlesheets n8n-nodes-base.code n8n-nodes-base.httprequest

Complexity

advanced

Published 01 Aug 2025

Likes 0

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Install path: /data/workflows/6812/6812.json

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Generate YouTube SEO content & thumbnail from video scripts with GPT-4o & Runway

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Who’s it for

How it works / What it does

Requirements

How to set up

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Google Sheets Trigger

Block 2 - No Operation, do nothing

Block 3 - If English script is available or not

Block 4 - Generating English Script

Block 5 - Creating field for english script

Block 6 - Adding English script to GSheet

Block 7 - Generating Youtube Tags, Keywords and more.

Block 8 - JS Code for separating different topics

Block 9 - Updating row in GSheet with Tags, Description so on

Block 10 - Python code for creating Dynamic Prompt

Block 11 - HTTP Request calling Runware API for generating Thumbnail image

Block 12 - Updating Gsheet with Thumbnail Image

Block 13 - Sticky Note

Block 14 - Sticky Note1

Block 15 - Sticky Note2

Block 16 - Sticky Note3

Block 17 - Sticky Note4

Block 18 - Sticky Note5

Block 19 - Sticky Note6

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions