Generate & auto-post AI videos to social media with Veo3: n8n workflow

The flow

Starts it 1Model 7Logic 2Service 16

The steps in the order they run, from what starts it.

1Trigger: Run Daily Script GeneratorSchedule triggerStarts it
2Tool: Inject CreativityTool ThinkModel
3LLM: Generate Idea & Caption (GPT-4.1)Lm Chat Open AiModel
4Parser: Extract JSON from IdeaOutput Parser StructuredModel
5Tool: Build Prompt StructureTool ThinkModel
6LLM: Format Prompt for Veo3 (GPT-4.1)Lm Chat Open AiModel
7AI Agent: Generate Video ConceptAgentModel
8AI Agent: Create Veo3-Compatible PromptAgentModel
9Google Sheets: Save Script IdeaGoogle SheetsService
10Call Veo3 API to Generate VideoHttp RequestService
11Wait for Veo3 Processing (5 mins)WaitLogic
12Retrieve Final Video URL from Veo3Http RequestService
13Google Sheets: Log Final Video OutputGoogle SheetsService
14Get my videoGoogle SheetsService
15Assign Social Media IDsSetLogic
16Upload Video to BlotatoHttp RequestService
17INSTAGRAMHttp RequestService
18YOUTUBEHttp RequestService
19TIKTOKHttp RequestService
20FACEBOOKHttp RequestService
21THREADSHttp RequestService
22TWETTERHttp RequestService
23LINKEDINHttp RequestService
24BLUESKYHttp RequestService
25PINTERESTHttp RequestService
26Google SheetsGoogle SheetsService

How it's built

Starts on: A clock
Steps: 26, 1 loop or waits
Size: Large: read it before trusting it with anything live
Connects to: Google Sheets
Model: OpenAI

Questions

What does it need to run?

An n8n account, plus your own Google Sheets account, and a key for OpenAI. You connect your own accounts after importing it; none are included.

What starts it?

It starts on a clock.

Does it use AI?

Yes. It calls OpenAI. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Take your time. At 26 steps it is large: read it before trusting it with anything live.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

Before you run it

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 26 steps before you point it at anything that matters.