基于RAG的LLM聊天机器人
高级
这是一个AI RAG, Multimodal AI领域的自动化工作流，包含 17 个节点。主要使用 GoogleDrive, Agent, GoogleDriveTrigger, ChatTrigger, LmChatOpenAi 等节点。 使用RAG、Pinecone向量数据库和OpenAI创建公司政策聊天机器人
前置要求
- •Google Drive API 凭证
- •OpenAI API Key
- •Pinecone API Key
使用的节点 (17)
工作流预览
可视化展示节点连接关系，支持缩放和平移
导出工作流
复制以下 JSON 配置到 n8n 导入，即可使用此工作流
{
"id": "ijORqghBWmOcVaCd",
"meta": {
"instanceId": "87616dfce72ffd690a51f4d408ac3b27a946f12a1119e0e281f5ed271497219e",
"templateCredsSetupCompleted": true
},
"name": "基于 RAG 的 LLM 聊天机器人",
"tags": [],
"nodes": [
{
"id": "93879f6c-0d57-4049-9e42-44d906160eb6",
"name": "当收到聊天消息时",
"type": "@n8n/n8n-nodes-langchain.chatTrigger",
"position": [
-440,
-300
],
"webhookId": "ba6e0e80-df72-4993-a938-16604c978e0b",
"parameters": {
"public": true,
"options": {}
},
"typeVersion": 1.1
},
{
"id": "688546eb-decc-4d88-b991-e6851d00d3c3",
"name": "AI Agent",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
-80,
-300
],
"parameters": {
"options": {
"systemMessage": "=You are an AI assistant specialized in analyzing user queries and retreive the data using pine cone vectore store via Vectore store QnA Tool. \n\nYour primary task is to answer questions accurately and precisely using the vector database, which contains relevant documents.\n\nOnly provide information that you retrieve from the documents (or verified expert knowledge). If something is not included in the dataset or is unclear, clearly state that you do not have sufficient information.\n\nStructure of your responses:\n• Concise and to the point\n• Specific numbers and facts, when available\n• Clearly indicate which quarterly tax deduction with the information comes from\n\nObjective:\nProvide users with reliable and quick insights to user questions without unnecessary details."
}
},
"typeVersion": 2
},
{
"id": "47d5f4e0-45e6-4a75-8250-76277a33addd",
"name": "OpenAI 聊天模型",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
-220,
-60
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4o-mini"
},
"options": {}
},
"credentials": {
"openAiApi": {
"id": "qlhg6EzexBZ9bwXO",
"name": "OpenAi account"
}
},
"typeVersion": 1.2
},
{
"id": "c5e00f0e-2494-443d-9ff5-ab476f174fda",
"name": "简单记忆",
"type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
"position": [
20,
80
],
"parameters": {},
"typeVersion": 1.3
},
{
"id": "5bdc6723-18e4-4637-b31e-2b7a722c2d30",
"name": "Pinecone Vector Store",
"type": "@n8n/n8n-nodes-langchain.vectorStorePinecone",
"position": [
300,
80
],
"parameters": {
"options": {
"pineconeNamespace": "<yourNameSpace>"
},
"pineconeIndex": {
"__rl": true,
"mode": "list",
"value": "n8ntest",
"cachedResultName": "n8ntest"
}
},
"credentials": {
"pineconeApi": {
"id": "PJJqeU0YnPNhhvLk",
"name": "PineconeApi account"
}
},
"typeVersion": 1.2
},
{
"id": "c9325bbd-95ee-49b6-80e3-b8eb18a3044e",
"name": "OpenAI 嵌入",
"type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
"position": [
320,
240
],
"parameters": {
"options": {
"batchSize": 512,
"dimensions": 512
}
},
"credentials": {
"openAiApi": {
"id": "qlhg6EzexBZ9bwXO",
"name": "OpenAi account"
}
},
"typeVersion": 1.2
},
{
"id": "1752c787-78f3-4c03-a44a-f619358b002b",
"name": "计算器",
"type": "@n8n/n8n-nodes-langchain.toolCalculator",
"position": [
760,
-120
],
"parameters": {},
"typeVersion": 1
},
{
"id": "c5130a15-b2fa-4c96-b890-6cda5a5d1e8a",
"name": "Google Drive 触发器",
"type": "n8n-nodes-base.googleDriveTrigger",
"position": [
-1960,
-240
],
"parameters": {
"event": "fileCreated",
"options": {},
"pollTimes": {
"item": [
{
"mode": "everyMinute"
}
]
},
"triggerOn": "specificFolder",
"folderToWatch": {
"__rl": true,
"mode": "list",
"value": "18ElQ-fxK0zXX5Ahx1lk80OXnAJ9NwvHl",
"cachedResultUrl": "https://drive.google.com/drive/folders/18ElQ-fxK0zXX5Ahx1lk80OXnAJ9NwvHl",
"cachedResultName": "n8n"
}
},
"credentials": {
"googleDriveOAuth2Api": {
"id": "xFTXDFHVEmRlrR5e",
"name": "Google Drive account 2"
}
},
"typeVersion": 1
},
{
"id": "e918feee-188e-42c7-8012-09614b6d73a4",
"name": "Google Drive",
"type": "n8n-nodes-base.googleDrive",
"position": [
-1740,
-240
],
"parameters": {
"fileId": {
"__rl": true,
"mode": "list",
"value": "1AWznNmqjEyztSOFYG9PgKOYX_GfJvI-P",
"cachedResultUrl": "https://drive.google.com/file/d/1AWznNmqjEyztSOFYG9PgKOYX_GfJvI-P/view?usp=drivesdk",
"cachedResultName": "income-tax-bill-2025.pdf"
},
"options": {},
"operation": "download"
},
"credentials": {
"googleDriveOAuth2Api": {
"id": "xFTXDFHVEmRlrR5e",
"name": "Google Drive account 2"
}
},
"typeVersion": 3
},
{
"id": "f2da487d-cbda-478d-8a38-b4c2a920dbaf",
"name": "默认数据加载器",
"type": "@n8n/n8n-nodes-langchain.documentDefaultDataLoader",
"position": [
-1140,
40
],
"parameters": {
"loader": "pdfLoader",
"options": {},
"dataType": "binary"
},
"typeVersion": 1
},
{
"id": "0ce84124-e903-4b41-a9dc-2b701efbeeaf",
"name": "递归字符文本分割器",
"type": "@n8n/n8n-nodes-langchain.textSplitterRecursiveCharacterTextSplitter",
"position": [
-1120,
220
],
"parameters": {
"options": {
"splitCode": "markdown"
},
"chunkOverlap": 50
},
"typeVersion": 1
},
{
"id": "c6fff7f0-d215-4d25-8e4e-bcd5cc200330",
"name": "便签",
"type": "n8n-nodes-base.stickyNote",
"position": [
-2020,
-600
],
"parameters": {
"width": 940,
"height": 280,
"content": "## 数据加载器"
},
"typeVersion": 1
},
{
"id": "abab349f-8cb4-489e-8a94-d369f89db0e0",
"name": "PineconeVectorStore",
"type": "@n8n/n8n-nodes-langchain.vectorStorePinecone",
"position": [
-1480,
-240
],
"parameters": {
"mode": "insert",
"options": {
"pineconeNamespace": "[YouNameSpace]"
},
"pineconeIndex": {
"__rl": true,
"mode": "list",
"value": "n8ntest",
"cachedResultName": "n8ntest"
}
},
"credentials": {
"pineconeApi": {
"id": "PJJqeU0YnPNhhvLk",
"name": "PineconeApi account"
}
},
"typeVersion": 1.2
},
{
"id": "9cee9812-3cc7-4d3f-b7be-6d02b8f7ca3e",
"name": "OpenAI Embeddings",
"type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
"position": [
-1480,
0
],
"parameters": {
"options": {
"batchSize": 512,
"dimensions": 512
}
},
"credentials": {
"openAiApi": {
"id": "qlhg6EzexBZ9bwXO",
"name": "OpenAi account"
}
},
"typeVersion": 1.2
},
{
"id": "401070d0-b61c-4fd4-9139-f82624e4d7fc",
"name": "便签 1",
"type": "n8n-nodes-base.stickyNote",
"position": [
-500,
-500
],
"parameters": {
"color": 4,
"width": 940,
"height": 180,
"content": "## 数据检索"
},
"typeVersion": 1
},
{
"id": "82fe4b78-b7d9-4ee1-a319-eb6e44d013dd",
"name": "向量存储 QnA",
"type": "@n8n/n8n-nodes-langchain.toolVectorStore",
"position": [
380,
-100
],
"parameters": {
"description": "返回与公司政策相关的文档以及这些政策文档中的所有重要内容"
},
"typeVersion": 1.1
},
{
"id": "84e007f0-7bfe-4788-900b-9a73376a1318",
"name": "OpenAI聊天模型2",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
780,
60
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4o-mini"
},
"options": {}
},
"credentials": {
"openAiApi": {
"id": "qlhg6EzexBZ9bwXO",
"name": "OpenAi account"
}
},
"typeVersion": 1.2
}
],
"active": false,
"pinData": {},
"settings": {
"executionOrder": "v1"
},
"versionId": "74b8ed97-4177-4d50-ae41-856da7e16a43",
"connections": {
"Calculator": {
"ai_tool": [
[
{
"node": "AI Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"Google Drive": {
"main": [
[
{
"node": "PineconeVectorStore",
"type": "main",
"index": 0
}
]
]
},
"Simple Memory": {
"ai_memory": [
[
{
"node": "AI Agent",
"type": "ai_memory",
"index": 0
}
]
]
},
"Vector Store QnA": {
"ai_tool": [
[
{
"node": "AI Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"Embeddings OpenAI": {
"ai_embedding": [
[
{
"node": "Pinecone Vector Store",
"type": "ai_embedding",
"index": 0
}
]
]
},
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "AI Agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"OpenAI Embeddings": {
"ai_embedding": [
[
{
"node": "PineconeVectorStore",
"type": "ai_embedding",
"index": 0
}
]
]
},
"OpenAI Chat Model2": {
"ai_languageModel": [
[
{
"node": "Vector Store QnA",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Default Data Loader": {
"ai_document": [
[
{
"node": "PineconeVectorStore",
"type": "ai_document",
"index": 0
}
]
]
},
"Google Drive Trigger": {
"main": [
[
{
"node": "Google Drive",
"type": "main",
"index": 0
}
]
]
},
"Pinecone Vector Store": {
"ai_vectorStore": [
[
{
"node": "Vector Store QnA",
"type": "ai_vectorStore",
"index": 0
}
]
]
},
"When chat message received": {
"main": [
[
{
"node": "AI Agent",
"type": "main",
"index": 0
}
]
]
},
"Recursive Character Text Splitter": {
"ai_textSplitter": [
[
{
"node": "Default Data Loader",
"type": "ai_textSplitter",
"index": 0
}
]
]
}
}
}常见问题
如何使用这个工作流？
复制上方的 JSON 配置代码，在您的 n8n 实例中创建新工作流并选择「从 JSON 导入」，粘贴配置后根据需要修改凭证设置即可。
这个工作流适合什么场景？
高级 - AI RAG 检索增强, 多模态 AI
需要付费吗？
本工作流完全免费，您可以直接导入使用。但请注意，工作流中使用的第三方服务（如 OpenAI API）可能需要您自行付费。
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工作流信息
难度等级
高级
节点数量17
分类2
节点类型13
作者
Pramod Kumar Rathoure
@prathoureDesign and build custom n8n workflows that:\n ⚡ Eliminate repetitive work 📊 Integrate tools like Google Workspace, CRMs, and APIs ✅ Deliver faster, error-free results I create solutions that save time, boost accuracy, and let teams focus on high-value work. For me, automation isn’t just about technology—it’s about freeing people from busywork so they can do what matters most. let’s talk—I can help you turn them into smooth, automated workflows.
外部链接
在 n8n.io 查看 →
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