Automation library · AI assistants

Simple RAG chatbot with Gemini and Google Drive

Started by someone opening a chat with it, and works across Google Drive and in-memory vectors. It puts Gemini behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 11 steps: a working afternoon to understand properly.

MediumCalls a model: GeminiRetrieval

11 stepsMedium: a working afternoon
0Branches: places the flow splits
0Loops or waits
2Services it connects to

The flow

Starts it 2Model 8Service 1

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

  1. 1When chat message receivedChat triggerStarts it
  2. 2Simple MemoryMemory Buffer WindowModel
  3. 3Embeddings CohereEmbeddings CohereModel
  4. 4Google Gemini Chat ModelLm Chat Google GeminiModel
  5. 5Embeddings Cohere1Embeddings CohereModel
  6. 6Default Data LoaderDocument Default Data LoaderModel
  7. 7Google Drive TriggerGoogle Drive triggerStarts it
  8. 8AI AgentAgentModel
  9. 9Simple Vector StoreVector Store In MemoryModel
  10. 10Simple Vector Store1Vector Store In MemoryModel
  11. 11Download fileGoogle DriveService

How it's built

Starts on
Someone opening a chat with it
Steps
11
Size
Medium: a working afternoon
Connects to
Google Drive, in-memory vectors
Model
Gemini
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 Google Drive and in-memory vectors accounts, and a key for Gemini. You connect your own accounts after importing it; none are included.

What starts it?

It starts on someone opening a chat with it.

Does it use AI?

Yes. It calls Gemini. 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. 11 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 11 steps before you point it at anything that matters.