Automation library · AI assistants

Generate and auto-evaluate Facebook ad headlines with OpenAI

Started by someone submitting a form, and works across Gmail. It hands the judgement calls to OpenAI. 12 steps, 1 branch: a working afternoon to understand properly.

MediumCalls a model: OpenAI

12 stepsMedium: a working afternoon
1Branch: places the flow splits
0Loops or waits
1Service it connects to

The flow

Starts it 1Model 8Logic 2Service 1

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

  1. 1FormTrigger_CopywritingBriefForm triggerStarts it
  2. 2LLM_HeadlineWriterModelLm Chat Open AiModel
  3. 3LLM_EvalCriteriaModelLm Chat Open AiModel
  4. 4LLM_HeadlineEvaluatorModelLm Chat Open AiModel
  5. 5LLM_BottomLineModelLm Chat Open AiModel
  6. 6Set_PromptForHeadlineSetLogic
  7. 7Agent_HeadlineWriterAgentModel
  8. 8Agent_EvalCriteriaBuilderAgentModel
  9. 9Agent_HeadlineEvaluatorAgentModel
  10. 10Agent_IterationDecisionAgentModel
  11. 11If_NeedMoreIterationsIfLogic
  12. 12Send a messageGmailService

How it's built

Starts on
Someone submitting a form
Steps
12, with 1 branch
Size
Medium: a working afternoon
Connects to
Gmail
Model
OpenAI

Questions

What does it need to run?

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

What starts it?

It starts on someone submitting a form.

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?

Plan an afternoon. 12 steps is enough that you should read each one before running it.

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 12 steps before you point it at anything that matters.