Automation library · Content

Answer WhatsApp text, voice, image and video messages

Started by an incoming WhatsApp message, and works across WhatsApp. It puts Gemini and OpenAI behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 19 steps, 1 branch: a working afternoon to understand properly.

MediumCalls a model: Gemini, OpenAIRetrieval

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

The flow

Starts it 1Model 7Logic 4Service 7

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

  1. 1WhatsApp TriggerWhats App triggerStarts it
  2. 2OpenAI Chat ModelLm Chat Open AiModel
  3. 3Per-User Chat MemoryMemory Buffer WindowModel
  4. 4WikipediaTool WikipediaModel
  5. 5ConfigurationSetLogic
  6. 6AI AgentAgentModel
  7. 7Split Out Message PartsSplit OutLogic
  8. 8Send Reply on WhatsAppWhats AppService
  9. 9Route by Message TypeSwitchLogic
  10. 10Get Audio Download URLWhats AppService
  11. 11Get Video Download URLWhats AppService
  12. 12Get Image Download URLWhats AppService
  13. 13Prepare Agent InputSetLogic
  14. 14Download Audio FileHttp RequestService
  15. 15Download Video FileHttp RequestService
  16. 16Download Image FileHttp RequestService
  17. 17Transcribe Voice Note with OpenAIOpen AiModel
  18. 18Describe Video with GeminiGoogle GeminiModel
  19. 19Analyze Image with GPT VisionOpen AiModel

How it's built

Starts on
An incoming WhatsApp message
Steps
19, with 1 branch
Size
Medium: a working afternoon
Connects to
WhatsApp
Model
Gemini, OpenAI
Retrieval
Answers are drawn from documents you supply, not from the model alone

Questions

What does it need to run?

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

What starts it?

It starts on an incoming WhatsApp message.

Does it use AI?

Yes. It calls Gemini and OpenAI. Its answers draw on documents you give it, not on the model alone. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 19 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 19 steps before you point it at anything that matters.