Create Professional Proposals using Dual AI and Google Docs Templates

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Built by Kean Kean
Created on June 07, 2026

Description


How it works

Input your proposal basics - Manually enter the core details and key points for your proposal
Dual AI processing - OpenAI expands your inputs into a comprehensive draft, then Claude refines it for clarity and readability
Automated document output - The workflow copies your Google Doc template, replaces all variables with the AI-generated content, and delivers your finished proposal

Set up steps

Estimated time: 10-15 minutes

Create an OpenRouter account - Sign up at OpenRouter to get API access for Claude
Set up your Google Doc template - Create a template document with placeholder variables (variable names are listed in the 'Update proposal' node)
Configure API credentials - Add your OpenAI and OpenRouter API keys to the workflow
Connect Google Drive - Authenticate your Google account to enable document creation

💡 Detailed configuration instructions and variable naming conventions can be found in the sticky notes within the workflow.
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Nodes Used (6)

Basic LLM Chain
@n8n/n8n-nodes-langchain.chainLlm
Google Docs
n8n-nodes-base.googleDocs
Google Drive
n8n-nodes-base.googleDrive
OpenAI
@n8n/n8n-nodes-langchain.openAi
OpenRouter Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenRouter
Structured Output Parser
@n8n/n8n-nodes-langchain.outputParserStructured