Automation library · AI assistants

Multimodal chat assistant with OpenAI and PDFs

Started by someone opening a chat with it. It calls services over plain HTTP rather than through connectors. It puts OpenAI behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 12 steps, 1 branch: a working afternoon to understand properly.

MediumCalls a model: OpenAIRetrieval

12 stepsMedium: a working afternoon
1Branch: places the flow splits
0Loops or waits
0Services by connector: it calls them over plain HTTP

The flow

Starts it 1Model 10Logic 1

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

  1. 1OpenAI Chat ModelLm Chat Open AiModel
  2. 2Simple MemoryMemory Buffer WindowModel
  3. 3OpenAI Chat Model1Lm Chat Open AiModel
  4. 4Simple Memory1Memory Buffer WindowModel
  5. 5chatChat triggerStarts it
  6. 6Simple Memory2Memory Buffer WindowModel
  7. 7Basic LLM ChainChain LlmModel
  8. 8AI AgentAgentModel
  9. 9chatmemMemory ManagerModel
  10. 10IfIfLogic
  11. 11chatmem1Memory ManagerModel
  12. 12OpenAIOpen AiModel

How it's built

Starts on
Someone opening a chat with it
Steps
12, with 1 branch
Size
Medium: a working afternoon
Connects to
Nothing by connector; it calls services over plain HTTP
Model
OpenAI
Retrieval
Answers are drawn from documents you supply, not from the model alone

Questions

What does it need to run?

An n8n account, and a key for OpenAI. 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 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. 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.