Badr This workflow corresponds to n8n.io template #4331 — we link there as the canonical source.
This workflow follows the Agent → Google Drive recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
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{
"nodes": [
{
"id": "4dd4126f-116d-4900-b833-ab3df30f7902",
"name": "Google Drive Trigger: New Invoice Detection",
"type": "n8n-nodes-base.googleDriveTrigger",
"position": [
848,
208
],
"parameters": {},
"typeVersion": 1
},
{
"id": "a34e3733-322e-4dfc-a242-fa6be35d0cc4",
"name": "Google Drive: Download Invoice",
"type": "n8n-nodes-base.googleDrive",
"position": [
1072,
208
],
"parameters": {},
"typeVersion": 3
},
{
"id": "7de698eb-7018-43cc-8b1b-090ddab72f8a",
"name": "Workflow Documentation",
"type": "n8n-nodes-base.stickyNote",
"position": [
-160,
-64
],
"parameters": {
"content": ""
},
"typeVersion": 1
},
{
"id": "ecfa59ff-5223-4dcb-aab9-c08d529cd5b7",
"name": "Mistral OCR API: Extract Text",
"type": "n8n-nodes-base.httpRequest",
"position": [
1504,
208
],
"parameters": {},
"typeVersion": 4.2
},
{
"id": "8d445ec3-6c26-4cac-ba84-797be80e6a88",
"name": "Data Splitter: OCR Pages",
"type": "n8n-nodes-base.splitOut",
"position": [
1744,
208
],
"parameters": {},
"typeVersion": 1
},
{
"id": "c3f4f8dc-00a3-4660-9401-2f46c4110c2f",
"name": "Field Extractor: Page Markdown",
"type": "n8n-nodes-base.set",
"position": [
1984,
208
],
"parameters": {},
"typeVersion": 3.4
},
{
"id": "d6f183e9-be6f-4a7d-8402-a3100e9db3df",
"name": "Data Aggregator: Combine Pages",
"type": "n8n-nodes-base.summarize",
"position": [
2208,
208
],
"parameters": {},
"typeVersion": 1.1
},
{
"id": "b7f98812-1cbc-40e9-a1a8-8bdfffdb7a21",
"name": "AI Agent: Structure Invoice Data",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
2432,
208
],
"parameters": {},
"typeVersion": 1.9
},
{
"id": "4451344d-641b-494a-805e-f27c98bda3e6",
"name": "JSON Parser: Invoice Structure",
"type": "@n8n/n8n-nodes-langchain.outputParserStructured",
"position": [
2608,
416
],
"parameters": {},
"typeVersion": 1.2
},
{
"id": "ee54892d-199b-4f04-b6da-bbe2a6fbe514",
"name": "Convert invoice File to Base64",
"type": "n8n-nodes-base.extractFromFile",
"position": [
1312,
208
],
"parameters": {},
"typeVersion": 1
},
{
"id": "5a7633c1-31ac-45ae-9460-bed46eb2b546",
"name": "AI Engine: GPT-5.2",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
2304,
416
],
"parameters": {},
"typeVersion": 1.2
}
],
"connections": {
"AI Engine: GPT-5.2": {
"ai_languageModel": [
[
{
"node": "AI Agent: Structure Invoice Data",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Data Splitter: OCR Pages": {
"main": [
[
{
"node": "Field Extractor: Page Markdown",
"type": "main",
"index": 0
}
]
]
},
"Mistral OCR API: Extract Text": {
"main": [
[
{
"node": "Data Splitter: OCR Pages",
"type": "main",
"index": 0
}
]
]
},
"Convert invoice File to Base64": {
"main": [
[
{
"node": "Mistral OCR API: Extract Text",
"type": "main",
"index": 0
}
]
]
},
"Data Aggregator: Combine Pages": {
"main": [
[
{
"node": "AI Agent: Structure Invoice Data",
"type": "main",
"index": 0
}
]
]
},
"Field Extractor: Page Markdown": {
"main": [
[
{
"node": "Data Aggregator: Combine Pages",
"type": "main",
"index": 0
}
]
]
},
"Google Drive: Download Invoice": {
"main": [
[
{
"node": "Convert invoice File to Base64",
"type": "main",
"index": 0
}
]
]
},
"Google Drive Trigger: New Invoice Detection": {
"main": [
[
{
"node": "Google Drive: Download Invoice",
"type": "main",
"index": 0
}
]
]
}
}
}
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About this workflow
🚀 Automate Invoice Processing with an End-to-End AI Workflow Powered by GPT-5.2
Source: https://n8n.io/workflows/4331/ — original creator credit. Request a take-down →
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