Compare Different LLM Responses Side-by-Side with Google Sheets

This workflow allows you to easily evaluate and compare the outputs of two language models (LLMs) before choosing one for production. In the chat interface, both model outputs are shown side by side. Their responses are also logged into a Google Sheet, where they can be evaluated manually or automatically using a more advanced model. Use Case You're developing an AI agent, and since LLMs are non-deterministic, you want to determine which one performs best for your specific use case. This template is designed to help you compare them effectively. How It Works The user sends a message to the chat interface. The input is duplicated and sent to two different LLMs. Each model processes the same p

Help me set up the n8n workflow "Compare Different LLM Responses Side-by-Side with Google Sheets" (https://n8n.io/workflows/3711). It uses: Google Sheets, AI Agent, Simple Memory, Chat Memory Manager, OpenRouter Chat Model. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.