Auto-create & post social media reels with Google Veo-3 AI and GPT

Open on n8n.io

$20/month : Unlimited workflows

2500 executions/month

Try free

THE #1 IN WEB SCRAPING

Scrape any website without limits

Try free

HOSTINGER

Early Deal
DISCOUNT 20%

Self-hosted n8n

Unlimited workflows - from $4.99/mo

Try free

#1 hub for scraping, AI & automation

6000+ actors - $5 credits/mo

Try free

Important notice

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

1. Workflow Overview

GPT 5 + Veo 3 Instagram Reel Auto Creator & Auto Poster Description: This n8n workflow is a fully automated short form video content engine that takes your creative idea, turns it into a cinemat...

Best for

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

Tools used

@n8n/n8n-nodes-langchain.chattrigger, n8n-nodes-base.wait, n8n-nodes-base.if, n8n-nodes-base.httprequest, @n8n/n8n-nodes-langchain.openai, n8n-nodes-base.stickynote

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Automate With Marc.

Original n8n.io source

1.1 Workflow description

Title: Auto-create & post social media reels with Google Veo-3 AI and GPT
Workflow name: Auto-create & post social media reels with Google Veo-3 AI and GPT

🚀 GPT-5 + Veo-3 Instagram Reel Auto-Creator & Auto-Poster

Description: This n8n workflow is a fully automated short-form video content engine that takes your creative idea, turns it into a cinematic video using Google Veo-3 via Wavespeed API, writes an engaging Instagram caption with GPT-5, and instantly posts it to Instagram via Postiz—all without lifting a finger.

It’s designed for content creators, social media managers, and brands who want to produce high-quality, on-brand reels at scale without manual editing or posting.

Watch Step-by-step build: www.youtube.com/@automatewithmarc

💡 Key Features: 💬 Chat-Triggered Automation (You can replace this with On Schedule trigger for automated generation) – Start the workflow with a simple message describing your video idea.

🧠 GPT-5 Video Prompt Agent – Transforms your concept into a visually rich, cinematic prompt optimized for Veo-3.

🎥 Veo-3 AI Video Generation – Creates a polished short-form reel with cinematic motion, effects, and branding.

✍️ GPT-5 Caption Writer – Crafts an impactful, scroll-stopping caption tailored for Instagram engagement.

📤 Auto-Posting with Postiz – Uploads and schedules (or instantly posts) your reel to Instagram without manual steps.

⏳ Automated Progress Checking – Wait & retry logic ensures posting only happens when the video is fully generated.

🔧 Tech Stack: GPT-5 via OpenAI API – AI for prompt engineering & caption creation.

Google Veo-3 (via Wavespeed API) – Next-gen text-to-video model for short-form content.

Postiz API – Multi-platform social media posting automation.

n8n – Orchestration & automation engine.

📌 Ideal Use Cases: Instagram Reels / TikTok Creators who want to post daily without editing.

Fitness, Fashion, Travel & Lifestyle Brands looking for high-quality, thematic reels.

Social Media Agencies producing client content at scale.

Event Marketers creating same-day recap videos.

🛠 Setup Instructions: Add your API keys for OpenAI (GPT-5), Wavespeed (Veo-3), and Postiz.

Connect Postiz to your Instagram account.

Trigger the workflow with a chat message describing your desired video.

Watch your idea transform into a reel—fully captioned and posted automatically.

🎯 Why This Workflow Stands Out: End-to-end automation from idea → video → caption → Instagram post.

AI-driven creative consistency for brand identity.

Scales your content production without hiring editors.

SEO & engagement-ready captions crafted for social virality.

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 - When chat message received

Type / Role: @n8n/n8n-nodes-langchain.chatTrigger - chatTrigger
Config choices: Version 1.1

Block 2 - 30 Wait

Type / Role: n8n-nodes-base.wait - wait
Config choices: Version 1.1

Block 3 - If

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

Block 4 - Wait 30 Secs

Type / Role: n8n-nodes-base.wait - wait
Config choices: Version 1.1

Block 5 - Veo3 Video Generator

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

Block 6 - GPT-5 AI Video Prompt Agent

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

Block 7 - Veo3 GET

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

Block 8 - Sticky Note

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

Block 9 - Sticky Note1

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

Block 10 - Upload to Postiz

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

Block 11 - Download Video

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

Block 12 - POSTIZ Post to Socials (IG)

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

Block 13 - GPT-5 Caption Agent

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

Block 14 - Sticky Note2

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

Block 15 - Sticky Note3

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

3. Summary Table

Workflow	Auto-create & post social media reels with Google Veo-3 AI and GPT
Complexity	advanced
Nodes	15
Categories	Content Creation, Multimodal AI
Author	Automate With Marc
Published	12 Aug 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/7287/7287.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 Auto-create & post social media reels with Google Veo-3 AI and GPT do?

GPT 5 + Veo 3 Instagram Reel Auto Creator & Auto Poster Description: This n8n workflow is a fully automated short form video content engine that takes your creative idea, turns it into a cinemat...

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.

Automate With Marc

50 workflows

Nodes

@n8n/n8n-nodes-langchain.chattrigger n8n-nodes-base.wait n8n-nodes-base.if n8n-nodes-base.httprequest @n8n/n8n-nodes-langchain.openai n8n-nodes-base.stickynote

Complexity

advanced

Published 12 Aug 2025

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/7287/7287.json

Share Your Workflow

Have a useful automation to share? Publish it and help the community.

Submit Your Template How to Submit

Related Workflows

Send daily LinkedIn post drafts with Tavily, Groq Llama 3.3 and Gmail

## Quick overview This workflow runs daily at 8 AM to rotate through a topic list, research it with Tavily web search, generate a LinkedIn post and image prompt with Groq (Llama 3.3 70B), create a Pollinations.ai image URL, and email you the post with the image attached via Gmail. ## How it works 1. Runs every day at 8:00 AM on a schedule. 2. Selects today’s topic from a rotating list based on the day of the year. 3. Searches the web with Tavily to fetch up-to-date results for the selected topic. 4. Uses a Groq-hosted Llama model to write a LinkedIn post and a matching image prompt grounded in the Tavily results. 5. Builds a Pollinations.ai image generation URL from the image prompt and downloads the generated image file. 6. Emails the post text with the image attached via Gmail, and sends a text-only fallback email if image generation or download fails. ## Setup 1. Add a Groq API credential to the Groq Chat Model node. 2. Create a Tavily API key and configure HTTP Header Auth with `Authorization: Bearer <YOUR_TAVILY_KEY>` for the Tavily Search request. 3. Connect a Gmail OAuth2 credential and update the recipient email address in both Gmail send steps. 4. Edit the topic list in the topic-selection code step if you want different rotating themes. ## Requirements - Groq API key (free tier available) - Tavily API key (free tier — 1,000 searches/month) - Gmail account (OAuth2) ## Customization - Edit the topic list inside the "Pick Today's Topic" code node to change what subjects the post rotates through. - Change the Groq model in the "Groq Chat Model" node if you want a different LLM (e.g. a smaller/faster or larger Groq model). - Adjust the schedule trigger if you want a different posting time, or swap the Gmail "send to" address to deliver the draft to someone else for review. ## Additional info This workflow emails you a draft for manual review before posting — it does not post to LinkedIn automatically. If image generation fails, a text-only fallback email is sent instead so you never miss the post text.

View

Generate VEO3 videos from form ideas with ChatGPT, fal.ai, Drive and Gmail

## Quick overview This workflow collects a video idea via an n8n Form, uses OpenAI to turn it into an optimized prompt, generates an 8-second VEO3 video with native audio via fal.ai, saves the MP4 to Google Drive, and emails the Drive link via Gmail. ## How it works 1. Receives a submission from an n8n Form with the requester’s email, a plain-English video idea, and a selected style. 2. Uses OpenAI (via an AI Agent) to convert the idea and style into a structured VEO3 title and detailed prompt returned as JSON. 3. Cleans and parses the AI JSON, creates a filename-safe title, and sets the generation parameters to 16:9 and 8 seconds. 4. Submits the prompt to fal.ai’s queue endpoint for the fal-ai/veo3 model and gets a request ID. 5. Polls fal.ai every 30 seconds until the job status returns COMPLETED. 6. Retrieves the final MP4 URL from fal.ai, downloads the video, uploads it to Google Drive, and emails the Google Drive web link to the requester via Gmail. ## Setup 1. Create a fal.ai account, generate an API key, and replace `YOUR_FAL_AI_API_KEY` in the fal.ai HTTP request headers. 2. Add an OpenAI API credential in the OpenAI Chat Model node and select the model you want to use. 3. Connect Google Drive OAuth2 and replace `YOUR_GDRIVE_FOLDER_ID` with the target folder ID where videos should be saved. 4. Connect Gmail OAuth2 for sending emails, then activate the workflow and use the Form URL (path `veo3-video-generator`) to submit requests.

View

Generate presentation decks from prompts with Encelade

## Quick overview This workflow starts a presentation generation job in Encelade from a prompt and outline hints, polls Encelade for completion, and outputs the finished deck link (or stops with an error if generation fails). ## How it works 1. Starts when you manually execute the workflow in n8n. 2. Sends the topic, slide count, audience, tone, theme settings, and outline hints to Encelade to generate a 6-slide presentation. 3. Waits 20 seconds and then checks the Encelade session status using the returned session ID. 4. If the session phase is not finished, it keeps waiting and rechecking until the phase changes. 5. When the phase is "done", it returns the generated deck link and project PID. 6. When the phase is "failed", it stops the workflow and raises an error with the failure details. ## Setup 1. Install and configure Encelade credentials in n8n for the Encelade node. 2. Update the generation inputs (topic, page count, outline hints, audience/tone, theme mode, and media provider) to match the deck you want to create. 3. Ensure the workflow has enough time to complete by adjusting the 20-second wait interval if your Encelade generations typically take longer.

View

Need Custom Automation?

Get help designing a custom n8n workflow that connects your stack and fits your process.

Auto-create & post social media reels with Google Veo-3 AI and GPT

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - When chat message received

Block 2 - 30 Wait

Block 3 - If

Block 4 - Wait 30 Secs

Block 5 - Veo3 Video Generator

Block 6 - GPT-5 AI Video Prompt Agent

Block 7 - Veo3 GET

Block 8 - Sticky Note

Block 9 - Sticky Note1

Block 10 - Upload to Postiz

Block 11 - Download Video

Block 12 - POSTIZ Post to Socials (IG)

Block 13 - GPT-5 Caption Agent

Block 14 - Sticky Note2

Block 15 - Sticky Note3

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