This workflow follows the Agent → Chainllm 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 →
{
"id": "KgoL0qrLYZUJFuAS",
"name": "Summarize YouTube Videos & Chat About Content with GPT-4o-mini via Telegram",
"tags": [],
"nodes": [
{
"id": "a9cb4358-f9ec-4d81-9422-f1b7133f1f2a",
"name": "Split Transcript into Segments",
"type": "n8n-nodes-base.splitOut",
"position": [
800,
680
],
"parameters": {
"options": {},
"fieldToSplitOut": "transcript"
},
"typeVersion": 1
},
{
"id": "03650773-fd85-4ecb-a218-0d18e2f88e68",
"name": "Extract YouTube URL from Input",
"type": "n8n-nodes-base.set",
"position": [
580,
220
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "3ee42e4c-3cee-4934-97e7-64c96b5691ed",
"name": "youtubeUrl",
"type": "string",
"value": "={{ $json.chatInput || $json.query.url}}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "9b55683c-6b04-44e6-8af2-ef69a50e783a",
"name": "Extract Video ID from URL",
"type": "n8n-nodes-base.code",
"position": [
580,
460
],
"parameters": {
"language": "python",
"pythonCode": "# Loop over input items and add a new field called 'myNewField' to the JSON of each one\nfor item in _input.all():\n item.json.myNewField = 1\nreturn _input.all()"
},
"typeVersion": 2
},
{
"id": "8552bb5d-c857-4a4e-b97b-7482b5e97244",
"name": "gpt-4o-mini",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
1280,
960
],
"parameters": {
"options": {}
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "5cea6925-cbf7-47a4-9a26-45f42f91c074",
"name": "Generate Summary with GPT-4o-mini",
"type": "@n8n/n8n-nodes-langchain.chainLlm",
"position": [
1260,
760
],
"parameters": {
"text": "=Please analyze the given text and create a structured summary following these guidelines:\n\n1. *General Summary*:\n - Provide a concise overview of the main topic or purpose of the text in one paragraph.\n - Focus on the essence of the content without excessive detail.\n\n2. *Key Moments*:\n - List the most important points, events, or concepts from the text.\n - Use bullet points for clarity.\n - Keep each point short and focused.\n - Highlight key terms using HTML bold tags (<b>term</b>).\n\n3. *Instructions (if applicable)*:\n - If the text is a tutorial or instructional, list the steps in a clear order.\n - Use numbered points for steps.\n - If not applicable, state: \"This text does not contain instructions.\"\n\n4. *Format requirements*:\n - Use markdown for headers (e.g., ## General Summary) and bullet points.\n - Use HTML bold tags (<b>term</b>) for emphasis instead of markdown bold.\n - Do not use tables; use simple text for lists or comparisons (e.g., \"Element: opis\").\n - Ensure the message is simple and displays correctly in the Telegram app, avoiding unsupported features like nested lists or tables.\n\nHere is the text: {{ $json.concatenated_text }}",
"promptType": "define"
},
"typeVersion": 1.4
},
{
"id": "cba394e4-3ae3-4506-a1d9-7b8ffbdf5d93",
"name": "Concatenate Transcript Segments",
"type": "n8n-nodes-base.summarize",
"position": [
1000,
680
],
"parameters": {
"options": {},
"fieldsToSummarize": {
"values": [
{
"field": "text",
"separateBy": " ",
"aggregation": "concatenate"
}
]
}
},
"typeVersion": 1
},
{
"id": "c4b266bd-ab23-4823-8f2c-f12704bad58f",
"name": "Trigger on Telegram Message",
"type": "@n8n/n8n-nodes-langchain.chatTrigger",
"position": [
360,
100
],
"parameters": {
"options": {}
},
"typeVersion": 1.1
},
{
"id": "57f22922-29fd-402e-b5c3-79cb133209cd",
"name": "Extract YouTube Transcript",
"type": "n8n-nodes-youtube-transcription-kasha.youtubeTranscripter",
"position": [
580,
680
],
"parameters": {
"videoId": "={{ $json.videoId}}"
},
"typeVersion": 1
},
{
"id": "196453ad-8a63-4fbc-9dc3-37a1ee611857",
"name": "Send Summary via Telegram",
"type": "n8n-nodes-base.telegram",
"position": [
1660,
760
],
"parameters": {
"text": "={{ $json.text }}\n\n\n{{ $('Extract YouTube URL from Input').item.json.youtubeUrl}}",
"additionalFields": {
"parse_mode": "HTML",
"appendAttribution": false
}
},
"credentials": {
"telegramApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.2
},
{
"id": "7754143b-9449-427c-9e04-e91434c4bc74",
"name": "Receive YouTube URL via Webhook",
"type": "n8n-nodes-base.webhook",
"position": [
360,
320
],
"parameters": {
"path": "8f0beaaf-b2c3-4148-8006-3b73fa146f60",
"options": {},
"responseMode": "responseNode"
},
"typeVersion": 2
},
{
"id": "e9aaec56-2458-49a4-989e-eb4af03441b9",
"name": "Send Response to Webhook",
"type": "n8n-nodes-base.respondToWebhook",
"position": [
1860,
760
],
"parameters": {
"options": {}
},
"typeVersion": 1.1
},
{
"id": "bac178f2-be91-4f28-a024-d7dbef11c442",
"name": "Telegram Trigger",
"type": "n8n-nodes-base.telegramTrigger",
"position": [
240,
1040
],
"parameters": {
"updates": [
"message"
],
"additionalFields": {}
},
"credentials": {
"telegramApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.1
},
{
"id": "128b8e7a-9b56-4d98-a270-9f627f188b8b",
"name": "Retrieve Transcript from Google Docs",
"type": "n8n-nodes-base.googleDocs",
"position": [
1280,
520
],
"parameters": {
"operation": "get",
"documentURL": "1-NdqfoVWfG1gpjltzJthw_MZeyAlGF3d3gYiIOBLbPk"
},
"credentials": {
"googleDocsOAuth2Api": {
"name": "<your credential>"
}
},
"typeVersion": 2
},
{
"id": "d4377188-fac7-4d48-8ef4-747f9dd39cf0",
"name": "Update Transcript in Google Docs",
"type": "n8n-nodes-base.googleDocs",
"position": [
1480,
520
],
"parameters": {
"actionsUi": {
"actionFields": [
{
"text": "={{ $json.content }}",
"action": "replaceAll",
"replaceText": "={{ $('Concatenate Transcript Segments').item.json.concatenated_text }}"
}
]
},
"operation": "update",
"documentURL": "={{ $json.documentId }}"
},
"credentials": {
"googleDocsOAuth2Api": {
"name": "<your credential>"
}
},
"typeVersion": 2
},
{
"id": "25504013-f1e0-4556-a318-dbc482bde4fa",
"name": "Handle User Questions via AI",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
440,
1040
],
"parameters": {
"text": "={{ $json.message.text }}",
"options": {
"systemMessage": "You are a tool for answering user questions about a YouTube video based on its transcript, which is available in a Google Docs document. Always check the transcript content before responding and ensure your answers are consistent with it."
},
"promptType": "define"
},
"typeVersion": 1.7
},
{
"id": "562ce57d-600e-4bb2-a5a2-e6d005f840bd",
"name": "OpenAI Chat Model",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
380,
1220
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4o-mini"
},
"options": {}
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.2
},
{
"id": "39ba9c74-a5c1-455e-b51b-9d36bce76635",
"name": "Window Buffer Memory",
"type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
"position": [
540,
1260
],
"parameters": {
"sessionKey": "={{ $json.message.text }}",
"sessionIdType": "customKey"
},
"typeVersion": 1.3
},
{
"id": "1983dc09-f74f-4863-8b2c-9069bc6d64d9",
"name": "Google Docs2",
"type": "n8n-nodes-base.googleDocsTool",
"position": [
660,
1280
],
"parameters": {
"operation": "get",
"documentURL": "1-NdqfoVWfG1gpjltzJthw_MZeyAlGF3d3gYiIOBLbPk"
},
"credentials": {
"googleDocsOAuth2Api": {
"name": "<your credential>"
}
},
"typeVersion": 2
},
{
"id": "4dfcba99-98e5-49e4-b8bd-31fb841a0985",
"name": "Send AI Response via Telegram",
"type": "n8n-nodes-base.telegram",
"position": [
840,
1040
],
"parameters": {
"text": "={{ $json.output }}",
"additionalFields": {
"parse_mode": "HTML",
"appendAttribution": false
}
},
"credentials": {
"telegramApi": {
"name": "<your credential>"
}
},
"retryOnFail": true,
"typeVersion": 1.2
},
{
"id": "29c22c9f-cca2-459f-8ef0-577c6e1ddd93",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
0,
0
],
"parameters": {
"color": 5,
"width": 540,
"height": 500,
"content": "## Get a video URL\nGet video url via webhook or message\n\nFor this I recommend using a shortcut \nif you are using apple. \nThis allows you to share a video\ndirectly to n8n via webhook\n"
},
"typeVersion": 1
},
{
"id": "7a987035-42cc-4b52-b4e3-f75194173a58",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
1200,
360
],
"parameters": {
"color": 4,
"width": 540,
"height": 360,
"content": "## Load memory \nUploading the transcript about the memory in google docs so you can then ask questions about the film"
},
"typeVersion": 1
},
{
"id": "2c7446b3-d7bf-4d0c-9b07-87e6ffaea0da",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
40,
900
],
"parameters": {
"color": 3,
"width": 1020,
"height": 600,
"content": "## Ask AI about video"
},
"typeVersion": 1
}
],
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "0b743433-f1cf-4a8c-9c4e-4b7778d6391a",
"connections": {
"gpt-4o-mini": {
"ai_languageModel": [
[
{
"node": "Generate Summary with GPT-4o-mini",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Google Docs2": {
"ai_tool": [
[
{
"node": "Handle User Questions via AI",
"type": "ai_tool",
"index": 0
}
]
]
},
"Telegram Trigger": {
"main": [
[
{
"node": "Handle User Questions via AI",
"type": "main",
"index": 0
}
]
]
},
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "Handle User Questions via AI",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Extract Video ID from URL": {
"main": [
[
{
"node": "Extract YouTube Transcript",
"type": "main",
"index": 0
}
]
]
},
"Send Summary via Telegram": {
"main": [
[
{
"node": "Send Response to Webhook",
"type": "main",
"index": 0
}
]
]
},
"Extract YouTube Transcript": {
"main": [
[
{
"node": "Split Transcript into Segments",
"type": "main",
"index": 0
}
]
]
},
"Trigger on Telegram Message": {
"main": [
[
{
"node": "Extract YouTube URL from Input",
"type": "main",
"index": 0
}
]
]
},
"Handle User Questions via AI": {
"main": [
[
{
"node": "Send AI Response via Telegram",
"type": "main",
"index": 0
}
]
]
},
"Extract YouTube URL from Input": {
"main": [
[
{
"node": "Extract Video ID from URL",
"type": "main",
"index": 0
}
]
]
},
"Split Transcript into Segments": {
"main": [
[
{
"node": "Concatenate Transcript Segments",
"type": "main",
"index": 0
}
]
]
},
"Concatenate Transcript Segments": {
"main": [
[
{
"node": "Generate Summary with GPT-4o-mini",
"type": "main",
"index": 0
},
{
"node": "Retrieve Transcript from Google Docs",
"type": "main",
"index": 0
}
]
]
},
"Receive YouTube URL via Webhook": {
"main": [
[
{
"node": "Extract YouTube URL from Input",
"type": "main",
"index": 0
}
]
]
},
"Generate Summary with GPT-4o-mini": {
"main": [
[
{
"node": "Send Summary via Telegram",
"type": "main",
"index": 0
}
]
]
},
"Retrieve Transcript from Google Docs": {
"main": [
[
{
"node": "Update Transcript in Google Docs",
"type": "main",
"index": 0
}
]
]
}
}
}
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.
googleDocsOAuth2ApiopenAiApitelegramApi
Pro
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How this works
Easily summarise lengthy YouTube videos and engage in insightful conversations about their content directly through Telegram, saving hours of manual note-taking and review. This workflow is ideal for content creators, researchers, or avid learners who frequently analyse educational or informative videos but lack time for deep dives. The key step involves feeding the video's transcript into GPT-4o-mini via the lmChatOpenAi integration to generate concise summaries, followed by a chat interface powered by Telegram for follow-up questions and discussions.
Use this workflow when you receive a YouTube link in Telegram and want instant summaries or to query specific details without leaving the app, such as during busy workdays or study sessions. Avoid it for non-English videos lacking reliable transcripts or when privacy demands offline processing, as it relies on external APIs. Common variations include adapting it for podcast summaries via RSS feeds or extending the chat to multiple users in group Telegram channels.
About this workflow
Summarize YouTube Videos & Chat About Content with GPT-4o-mini via Telegram. Uses splitOut, lmChatOpenAi, chainLlm, summarize. Chat trigger; 22 nodes.
Source: https://github.com/Zie619/n8n-workflows — original creator credit. Request a take-down →
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