Automation library · AI assistants

AI orchestrator: dynamically selects models based on input type

Started by someone opening a chat with it. It calls services over plain HTTP rather than through connectors. It puts Claude, Gemini and two others 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: Claude, GeminiRetrieval

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

The flow

Starts it 1Model 10

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

  1. 1When chat message receivedChat triggerStarts it
  2. 2Structured Output ParserOutput Parser StructuredModel
  3. 3Simple MemoryMemory Buffer WindowModel
  4. 4Opus 4Lm Chat AnthropicModel
  5. 5Gemini Thinking ProLm Chat Google GeminiModel
  6. 6GPT 4.1 miniLm Chat Open AiModel
  7. 7PerplexityLm Chat Open RouterModel
  8. 8OpenAI Chat ModelLm Chat Open AiModel
  9. 9Request TypeChain LlmModel
  10. 10AI AgentAgentModel
  11. 11Model SelectorModel SelectorModel

How it's built

Starts on
Someone opening a chat with it
Steps
11
Size
Medium: a working afternoon
Connects to
Nothing by connector; it calls services over plain HTTP
Model
Claude, Gemini, OpenAI, OpenRouter
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 Claude and 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 Claude, 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. 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.