This workflow follows the Chainllm → Chainsummarization recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →
{
"name": "aiNodes",
"nodes": [
{
"parameters": {
"modelId": {
"__rl": true,
"value": "gpt-4.1-mini",
"mode": "list",
"cachedResultName": "GPT-4.1-MINI"
},
"messages": {
"values": [
{
"content": "You're an intelligent assistance to generate 1 line motivational quotes.\n\ncall the mail and pass this quote as body\nsubject: today motivational quotes\nTo: paari24@gmail.com",
"role": "system"
}
]
},
"jsonOutput": true,
"options": {
"temperature": 0.6
}
},
"type": "@n8n/n8n-nodes-langchain.openAi",
"typeVersion": 1.8,
"position": [
224,
256
],
"id": "1f7672ba-7578-4832-8e87-42b1c2f43197",
"name": "Message a model",
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"sendTo": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('To', ``, 'string') }}",
"subject": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Subject', ``, 'string') }}",
"message": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Message', ``, 'string') }}",
"options": {
"appendAttribution": false
}
},
"type": "n8n-nodes-base.gmailTool",
"typeVersion": 2.1,
"position": [
304,
480
],
"id": "7a286df5-72a1-483c-8588-ce6f782443be",
"name": "Send a message in Gmail",
"credentials": {
"gmailOAuth2": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"promptType": "define",
"text": "=Describe this quotes with clear explanation \"{{ $json.message.content.quote }}\"",
"messages": {
"messageValues": [
{
"message": "you're a expert in describing the quotes in simple english"
}
]
},
"batching": {}
},
"type": "@n8n/n8n-nodes-langchain.chainLlm",
"typeVersion": 1.7,
"position": [
576,
256
],
"id": "ff92ec21-54f0-456b-bf5d-ebd018788795",
"name": "Basic LLM Chain"
},
{
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4.1-mini"
},
"options": {}
},
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"typeVersion": 1.2,
"position": [
656,
480
],
"id": "59125491-98b5-4a64-9003-e4bf0bb08493",
"name": "OpenAI Chat Model",
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"text": "={{ $json.Subject }}",
"attributes": {
"attributes": [
{
"name": "subject",
"description": "give me the list of subjects"
}
]
},
"options": {}
},
"type": "@n8n/n8n-nodes-langchain.informationExtractor",
"typeVersion": 1.2,
"position": [
1152,
256
],
"id": "9ab7378a-60d4-47db-8c3f-f70429d82084",
"name": "Information Extractor"
},
{
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4.1-mini"
},
"options": {}
},
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"typeVersion": 1.2,
"position": [
1232,
480
],
"id": "f15e8b14-0e1c-4970-8164-86f16e41ebf9",
"name": "OpenAI Chat Model1",
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"operation": "getAll",
"limit": 5,
"filters": {}
},
"type": "n8n-nodes-base.gmail",
"typeVersion": 2.1,
"position": [
928,
256
],
"id": "5ff75893-d747-4d63-b088-64dfe7006029",
"name": "Get many messages",
"credentials": {
"gmailOAuth2": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"promptType": "define",
"text": "=tell me the answer for the user question: {{ $json.output.subject }}",
"options": {}
},
"type": "@n8n/n8n-nodes-langchain.chainRetrievalQa",
"typeVersion": 1.6,
"position": [
1536,
256
],
"id": "c759ca57-4598-4bbb-9ccf-4e260db3a53b",
"name": "Question and Answer Chain"
},
{
"parameters": {},
"type": "@n8n/n8n-nodes-langchain.retrieverVectorStore",
"typeVersion": 1,
"position": [
1632,
480
],
"id": "ca9dcb35-2803-494c-b1e4-806ee9a624da",
"name": "Vector Store Retriever"
},
{
"parameters": {
"memoryKey": {
"__rl": true,
"value": "vector_store_key",
"mode": "list",
"cachedResultName": "vector_store_key"
}
},
"type": "@n8n/n8n-nodes-langchain.vectorStoreInMemory",
"typeVersion": 1.3,
"position": [
1632,
688
],
"id": "32013338-eae3-4268-a1d6-e8886fac80a3",
"name": "Simple Vector Store"
},
{
"parameters": {
"options": {}
},
"type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
"typeVersion": 1.2,
"position": [
1712,
896
],
"id": "de8f24a8-4b4f-460a-90b6-ef59305287a1",
"name": "Embeddings OpenAI",
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4.1-mini"
},
"options": {}
},
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"typeVersion": 1.2,
"position": [
1504,
480
],
"id": "df2759e5-345a-4e2d-ae9c-c25d01c04f99",
"name": "OpenAI Chat Model2",
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"formTitle": "review system",
"formDescription": "getting the feedback from customer",
"formFields": {
"values": [
{
"fieldLabel": "rate our service",
"requiredField": true
}
]
},
"options": {}
},
"type": "n8n-nodes-base.formTrigger",
"typeVersion": 2.3,
"position": [
224,
-400
],
"id": "25d3df34-a7a1-4e86-8595-2eb4001ec0f3",
"name": "On form submission"
},
{
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4.1-mini"
},
"options": {}
},
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"typeVersion": 1.2,
"position": [
528,
-144
],
"id": "fd1cc21a-7ef4-48bc-99cb-8f1181fa1802",
"name": "OpenAI Chat Model3",
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"inputText": "={{ $json['rate our service'] }}",
"options": {
"systemPromptTemplate": "You are highly intelligent and accurate sentiment analyzer. Analyze the sentiment of the provided text. Categorize it into one of the following: {categories}. Use the provided formatting instructions. Only output the JSON."
}
},
"type": "@n8n/n8n-nodes-langchain.sentimentAnalysis",
"typeVersion": 1.1,
"position": [
448,
-400
],
"id": "0fe63f8c-84a8-4101-86b6-4951a1ec3d7f",
"name": "Sentiment Analysis"
},
{
"parameters": {
"options": {}
},
"type": "@n8n/n8n-nodes-langchain.chainSummarization",
"typeVersion": 2.1,
"position": [
800,
-400
],
"id": "39d6fd39-f93a-4f3f-95e9-689c4a299bdf",
"name": "Summarization Chain"
},
{
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4.1-mini"
},
"options": {}
},
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"typeVersion": 1.2,
"position": [
880,
-176
],
"id": "06e8825c-9c80-44d1-a6b7-30e756254685",
"name": "OpenAI Chat Model4",
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"inputText": "={{ $json.output.text }}",
"categories": {
"categories": [
{
"category": "negative",
"description": "the reviews are negative"
},
{
"category": "positive",
"description": "positive reviews"
}
]
},
"options": {}
},
"type": "@n8n/n8n-nodes-langchain.textClassifier",
"typeVersion": 1.1,
"position": [
1152,
-400
],
"id": "37445eb5-e890-478f-9954-93dccb98e07c",
"name": "Text Classifier"
},
{
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4.1-mini"
},
"options": {}
},
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"typeVersion": 1.2,
"position": [
1232,
-176
],
"id": "ecde66ac-aedf-42c8-b6f7-b0a9bf1eff39",
"name": "OpenAI Chat Model5",
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
}
}
],
"connections": {
"Send a message in Gmail": {
"ai_tool": [
[
{
"node": "Message a model",
"type": "ai_tool",
"index": 0
}
]
]
},
"Message a model": {
"main": [
[
{
"node": "Basic LLM Chain",
"type": "main",
"index": 0
}
]
]
},
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "Basic LLM Chain",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Basic LLM Chain": {
"main": [
[
{
"node": "Get many messages",
"type": "main",
"index": 0
}
]
]
},
"OpenAI Chat Model1": {
"ai_languageModel": [
[
{
"node": "Information Extractor",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Get many messages": {
"main": [
[
{
"node": "Information Extractor",
"type": "main",
"index": 0
}
]
]
},
"Information Extractor": {
"main": [
[
{
"node": "Question and Answer Chain",
"type": "main",
"index": 0
}
]
]
},
"Vector Store Retriever": {
"ai_retriever": [
[
{
"node": "Question and Answer Chain",
"type": "ai_retriever",
"index": 0
}
]
]
},
"Simple Vector Store": {
"ai_vectorStore": [
[
{
"node": "Vector Store Retriever",
"type": "ai_vectorStore",
"index": 0
}
]
]
},
"Embeddings OpenAI": {
"ai_embedding": [
[
{
"node": "Simple Vector Store",
"type": "ai_embedding",
"index": 0
}
]
]
},
"OpenAI Chat Model2": {
"ai_languageModel": [
[
{
"node": "Question and Answer Chain",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Question and Answer Chain": {
"main": [
[]
]
},
"On form submission": {
"main": [
[
{
"node": "Sentiment Analysis",
"type": "main",
"index": 0
}
]
]
},
"OpenAI Chat Model3": {
"ai_languageModel": [
[
{
"node": "Sentiment Analysis",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Sentiment Analysis": {
"main": [
[],
[],
[
{
"node": "Summarization Chain",
"type": "main",
"index": 0
}
]
]
},
"OpenAI Chat Model4": {
"ai_languageModel": [
[
{
"node": "Summarization Chain",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Summarization Chain": {
"main": [
[
{
"node": "Text Classifier",
"type": "main",
"index": 0
}
]
]
},
"OpenAI Chat Model5": {
"ai_languageModel": [
[
{
"node": "Text Classifier",
"type": "ai_languageModel",
"index": 0
}
]
]
}
},
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "ac61f1f5-bc7c-42a7-a115-f30d170d47df",
"meta": {
"templateCredsSetupCompleted": true
},
"id": "zZvSOiNubQX6OL20",
"tags": []
}
Credentials you'll need
Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.
gmailOAuth2openAiApi
Pro
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About this workflow
aiNodes. Uses openAi, gmailTool, chainLlm, lmChatOpenAi. Event-driven trigger; 19 nodes.
Source: https://github.com/paari24/genAI/blob/30bfbd32b1e76049e3795e5e94449ce5c7a2d915/n8n/aiNodes.json — original creator credit. Request a take-down →
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