This workflow follows the Chainllm → OpenAI Chat 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": "Incoming Audio Handler: Conditional ChatGPT Summarization of Transcriptions",
"nodes": [
{
"parameters": {
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict",
"version": 2
},
"conditions": [
{
"id": "dc6fc1aa-79c6-4427-89f4-3b4b0b751ef1",
"leftValue": "={{ $json.body.data.messageType }}",
"rightValue": "audioMessage",
"operator": {
"type": "string",
"operation": "equals",
"name": "filter.operator.equals"
}
},
{
"id": "010e83f6-3056-42a7-b759-cd5f3d85b07d",
"leftValue": "={{ $json.body.data.key.fromMe }}",
"rightValue": "",
"operator": {
"type": "boolean",
"operation": "false",
"singleValue": true
}
}
],
"combinator": "and"
},
"options": {}
},
"id": "0b03b52f-0037-4f1f-b7bb-5496b7c06ff6",
"name": "If",
"type": "n8n-nodes-base.if",
"typeVersion": 2.2,
"position": [
560,
520
],
"notes": "Verifica se \u00e9 um \u00e1udio e n\u00e3o \u00e9 do seu n\u00famero."
},
{
"parameters": {},
"id": "17905a18-6421-4d77-94c9-b1ed43daf9b9",
"name": "No Operation, do nothing",
"type": "n8n-nodes-base.noOp",
"typeVersion": 1,
"position": [
820,
760
]
},
{
"parameters": {
"httpMethod": "POST",
"path": "c1023bf0-1629-4e13-9da3-626c3eee8682",
"options": {}
},
"id": "34dd6e81-f293-4f4c-8257-f47fa5418313",
"name": "Webhook1",
"type": "n8n-nodes-base.webhook",
"typeVersion": 2,
"position": [
280,
520
]
},
{
"parameters": {
"options": {}
},
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"typeVersion": 1,
"position": [
2400,
700
],
"id": "8d1b4a9d-46db-4d45-a5d8-bc7854c800bc",
"name": "OpenAI Chat Model",
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"promptType": "define",
"text": "=Resuma o seguinte texto: \"{{ $item(\"0\").$node[\"If8\"].json[\"body\"][\"data\"][\"message\"][\"speechToText\"] }}\", sem perder o contexto e mantendo a hierarquia de informa\u00e7\u00f5es. No seu output deve ser apenas o resumo"
},
"id": "87776c34-ce0a-408e-ab5b-a297ba6717e7",
"name": "Resumir com CHAT GPT",
"type": "@n8n/n8n-nodes-langchain.chainLlm",
"typeVersion": 1.4,
"position": [
2300,
500
]
},
{
"parameters": {
"content": "```\n_____/\\\\\\\\\\\\\\\\\\\\\\\\_____/\\\\\\\\\\\\\\\\\\\\\\\\____________/\\\\\\\\\\_____/\\\\\\_______/\\\\\\\\\\_____________/\\\\\\\\\\\\\\\\\\_______/\\\\\\\\\\_______/\\\\\\\\\\\\\\\\\\\\\\\\_____/\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\_ \n ___/\\\\\\//////////____/\\\\\\//////////____________\\/\\\\\\\\\\\\___\\/\\\\\\_____/\\\\\\///\\\\\\________/\\\\\\////////______/\\\\\\///\\\\\\____\\/\\\\\\////////\\\\\\__\\/\\\\\\///////////__ \n __/\\\\\\______________/\\\\\\_______________________\\/\\\\\\/\\\\\\__\\/\\\\\\___/\\\\\\/__\\///\\\\\\____/\\\\\\/_____________/\\\\\\/__\\///\\\\\\__\\/\\\\\\______\\//\\\\\\_\\/\\\\\\_____________ \n _\\/\\\\\\____/\\\\\\\\\\\\\\_\\/\\\\\\____/\\\\\\\\\\\\\\___________\\/\\\\\\//\\\\\\_\\/\\\\\\__/\\\\\\______\\//\\\\\\__/\\\\\\______________/\\\\\\______\\//\\\\\\_\\/\\\\\\_______\\/\\\\\\_\\/\\\\\\\\\\\\\\\\\\\\\\_____ \n _\\/\\\\\\___\\/////\\\\\\_\\/\\\\\\___\\/////\\\\\\___________\\/\\\\\\\\//\\\\\\\\/\\\\\\_\\/\\\\\\_______\\/\\\\\\_\\/\\\\\\_____________\\/\\\\\\_______\\/\\\\\\_\\/\\\\\\_______\\/\\\\\\_\\/\\\\\\///////______ \n _\\/\\\\\\_______\\/\\\\\\_\\/\\\\\\_______\\/\\\\\\___________\\/\\\\\\_\\//\\\\\\/\\\\\\_\\//\\\\\\______/\\\\\\__\\//\\\\\\____________\\//\\\\\\______/\\\\\\__\\/\\\\\\_______\\/\\\\\\_\\/\\\\\\_____________ \n _\\/\\\\\\_______\\/\\\\\\_\\/\\\\\\_______\\/\\\\\\___________\\/\\\\\\__\\//\\\\\\\\\\\\__\\///\\\\\\__/\\\\\\_____\\///\\\\\\___________\\///\\\\\\__/\\\\\\____\\/\\\\\\_______/\\\\\\__\\/\\\\\\_____________ \n _\\//\\\\\\\\\\\\\\\\\\\\\\\\/__\\//\\\\\\\\\\\\\\\\\\\\\\\\/____________\\/\\\\\\___\\//\\\\\\\\\\____\\///\\\\\\\\\\/________\\////\\\\\\\\\\\\\\\\\\____\\///\\\\\\\\\\/_____\\/\\\\\\\\\\\\\\\\\\\\\\\\/___\\/\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\_ \n __\\////////////_____\\////////////______________\\///_____\\/////_______\\/////_____________\\/////////_______\\/////_______\\////////////_____\\///////////////__\n```",
"width": 1580,
"color": 7
},
"type": "n8n-nodes-base.stickyNote",
"position": [
720,
980
],
"typeVersion": 1,
"id": "9064bc91-aedf-47c4-ad86-67f5ddf6aef7",
"name": "Sticky Note13"
},
{
"parameters": {
"content": "## PASSO 1 - RECEBER \u00c1UDIO\n\n*Voc\u00ea pode integrar este fluxo em qualquer automa\u00e7\u00e3o\n*A EVOLUTION API transcreve os \u00e1udios automaticamente, mas voce precisa configurar uma credencial da OPEN AI l\u00e1 dentro.",
"height": 620,
"width": 820,
"color": 6
},
"type": "n8n-nodes-base.stickyNote",
"position": [
180,
300
],
"typeVersion": 1,
"id": "2d1b3e2f-9b84-45d2-9189-957bfe030997",
"name": "Sticky Note"
},
{
"parameters": {
"content": "## PASSO 2 - CONTAR CARACTERES \n\n*Voc\u00ea pode tirar essa op\u00e7\u00e3o e apenas transcrever todos os \u00e1udios.\n*Voc\u00ea tamb\u00e9m pode alterar a partir de quantos caracteres que quer que a IA resuma.",
"height": 620,
"width": 820,
"color": 5
},
"type": "n8n-nodes-base.stickyNote",
"position": [
1040,
300
],
"typeVersion": 1,
"id": "a862ebaa-c18f-475f-b82f-97cb0b9adaad",
"name": "Sticky Note1"
},
{
"parameters": {
"content": "## PASSO 3 - RESUME OU ENVIA DE ACORDO COM AS INSTRU\u00c7\u00d5ES\n\n",
"height": 620,
"width": 1060,
"color": 4
},
"type": "n8n-nodes-base.stickyNote",
"position": [
1900,
300
],
"typeVersion": 1,
"id": "fce7cd28-8fc6-4a18-8cf6-f184dde44c7a",
"name": "Sticky Note2"
},
{
"parameters": {
"resource": "messages-api",
"instanceName": "eduarda-teste-1",
"remoteJid": "={{ $item(\"0\").$node[\"Webhook1\"].json[\"body\"][\"data\"][\"key\"][\"remoteJid\"] }}",
"messageText": "=*Transcri\u00e7\u00e3o:* _\"{{ $item(\"0\").$node[\"If8\"].json[\"body\"][\"data\"][\"message\"][\"speechToText\"] }}\"_"
},
"type": "n8n-nodes-evolution-api.httpBin",
"typeVersion": 1,
"position": [
2000,
740
],
"id": "f8b67906-8d3e-4c4f-bf01-867705fe4ac0",
"name": "Evolution API",
"credentials": {
"httpbinApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict",
"version": 1
},
"conditions": [
{
"id": "faccbd3d-33a3-4503-9a48-b3d1cc5a174e",
"leftValue": "={{ $json.characterCount }}",
"rightValue": 200,
"operator": {
"type": "number",
"operation": "gt"
}
}
],
"combinator": "and"
},
"options": {}
},
"id": "7850a86c-367a-4244-9776-fd751650a9ad",
"name": "If8",
"type": "n8n-nodes-base.if",
"typeVersion": 2,
"position": [
1600,
520
]
},
{
"parameters": {
"resource": "messages-api",
"instanceName": "eduarda-teste-1",
"remoteJid": "={{ $item(\"0\").$node[\"Webhook1\"].json[\"body\"][\"data\"][\"key\"][\"remoteJid\"] }}",
"messageText": "=*Resumo com IA:* \n> _\"{{ $item(\"0\").$node[\"Resumir com CHAT GPT\"].json[\"text\"] }}\"_`"
},
"type": "n8n-nodes-evolution-api.httpBin",
"typeVersion": 1,
"position": [
2740,
500
],
"id": "da9ba687-75da-4f5d-8f61-524f8608f6a7",
"name": "Evolution API1",
"credentials": {
"httpbinApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"content": "```\n.########.########.....###....##....##..######...######..########..########.##.....##.########.########......#######..##.....##....########..########..######..##.....##.##.....##.####.########.\n....##....##.....##...##.##...###...##.##....##.##....##.##.....##.##.......##.....##.##.......##.....##....##.....##.##.....##....##.....##.##.......##....##.##.....##.###...###..##..##.....##\n....##....##.....##..##...##..####..##.##.......##.......##.....##.##.......##.....##.##.......##.....##....##.....##.##.....##....##.....##.##.......##.......##.....##.####.####..##..##.....##\n....##....########..##.....##.##.##.##..######..##.......########..######...##.....##.######...########.....##.....##.##.....##....########..######....######..##.....##.##.###.##..##..########.\n....##....##...##...#########.##..####.......##.##.......##...##...##........##...##..##.......##...##......##.....##.##.....##....##...##...##.............##.##.....##.##.....##..##..##...##..\n....##....##....##..##.....##.##...###.##....##.##....##.##....##..##.........##.##...##.......##....##.....##.....##.##.....##....##....##..##.......##....##.##.....##.##.....##..##..##....##.\n....##....##.....##.##.....##.##....##..######...######..##.....##.########....###....########.##.....##.....#######...#######.....##.....##.########..######...#######..##.....##.####.##.....##\n```",
"height": 140,
"width": 1880,
"color": 3
},
"type": "n8n-nodes-base.stickyNote",
"position": [
560,
-100
],
"typeVersion": 1,
"id": "df229d31-1be2-4ffe-ae15-ea3dffa353b2",
"name": "Sticky Note3"
},
{
"parameters": {
"content": "```\n....###....##.....##.########..####..#######...######......######...#######..##.....##.....######..##.....##....###....########.....######...########..########\n...##.##...##.....##.##.....##..##..##.....##.##....##....##....##.##.....##.###...###....##....##.##.....##...##.##......##.......##....##..##.....##....##...\n..##...##..##.....##.##.....##..##..##.....##.##..........##.......##.....##.####.####....##.......##.....##..##...##.....##.......##........##.....##....##...\n.##.....##.##.....##.##.....##..##..##.....##..######.....##.......##.....##.##.###.##....##.......#########.##.....##....##.......##...####.########.....##...\n.#########.##.....##.##.....##..##..##.....##.......##....##.......##.....##.##.....##....##.......##.....##.#########....##.......##....##..##...........##...\n.##.....##.##.....##.##.....##..##..##.....##.##....##....##....##.##.....##.##.....##....##....##.##.....##.##.....##....##.......##....##..##...........##...\n.##.....##..#######..########..####..#######...######......######...#######..##.....##.....######..##.....##.##.....##....##........######...##...........##...\n```",
"height": 140,
"width": 1560,
"color": 4
},
"type": "n8n-nodes-base.stickyNote",
"position": [
720,
60
],
"typeVersion": 1,
"id": "508e0457-c7cc-44ca-96b6-b51419b0c914",
"name": "Sticky Note4"
},
{
"parameters": {
"content": "Verifica se \u00e9 \u00e1udio",
"height": 220,
"width": 200
},
"type": "n8n-nodes-base.stickyNote",
"position": [
520,
460
],
"typeVersion": 1,
"id": "c41677a8-2d7b-4ab5-8c80-b517849c6edf",
"name": "Sticky Note5"
},
{
"parameters": {
"content": "Contagem de Caracteres",
"height": 220,
"width": 200
},
"type": "n8n-nodes-base.stickyNote",
"position": [
1200,
460
],
"typeVersion": 1,
"id": "9256be3d-40af-4ed2-bf6b-91edc27f46cd",
"name": "Sticky Note6"
},
{
"parameters": {
"jsCode": "const items = $input.all();\n\nreturn items.map(item => {\n const speechToText = item.json.body.data.message.speechToText;\n const characterCount = speechToText.length;\n\n return {\n json: {\n speechToText,\n characterCount,\n }\n };\n});"
},
"id": "49f024bc-76d8-4030-9f70-9695154cb887",
"name": "Code",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
1240,
520
]
},
{
"parameters": {
"content": "Passou na contagem?",
"height": 220,
"width": 200
},
"type": "n8n-nodes-base.stickyNote",
"position": [
1560,
460
],
"typeVersion": 1,
"id": "a7ebeac5-59df-440e-b270-a7cc7c733df3",
"name": "Sticky Note7"
},
{
"parameters": {
"content": "Envia transcri\u00e7\u00e3o direta",
"height": 220,
"width": 200
},
"type": "n8n-nodes-base.stickyNote",
"position": [
1960,
680
],
"typeVersion": 1,
"id": "1f0e5e58-c5dc-446d-a0f9-aa9b4f12a07e",
"name": "Sticky Note8"
},
{
"parameters": {
"content": "Envia Resumo",
"height": 220,
"width": 200
},
"type": "n8n-nodes-base.stickyNote",
"position": [
2700,
440
],
"typeVersion": 1,
"id": "7616199b-5285-430c-90e8-b9536376b2fe",
"name": "Sticky Note9"
},
{
"parameters": {
"content": "CHAT GPT para fazer o resumo",
"height": 400,
"width": 340
},
"type": "n8n-nodes-base.stickyNote",
"position": [
2260,
440
],
"typeVersion": 1,
"id": "2160c53d-2b15-453d-9f5c-eacdc4b1e0bf",
"name": "Sticky Note10"
}
],
"connections": {
"If": {
"main": [
[
{
"node": "Code",
"type": "main",
"index": 0
}
],
[
{
"node": "No Operation, do nothing",
"type": "main",
"index": 0
}
]
]
},
"Webhook1": {
"main": [
[
{
"node": "If",
"type": "main",
"index": 0
}
]
]
},
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "Resumir com CHAT GPT",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Resumir com CHAT GPT": {
"main": [
[
{
"node": "Evolution API1",
"type": "main",
"index": 0
}
]
]
},
"If8": {
"main": [
[
{
"node": "Resumir com CHAT GPT",
"type": "main",
"index": 0
}
],
[
{
"node": "Evolution API",
"type": "main",
"index": 0
}
]
]
},
"Code": {
"main": [
[
{
"node": "If8",
"type": "main",
"index": 0
}
]
]
}
},
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "81075764-795f-4206-be80-996c14d4372f",
"id": "lhP46yqP9bWEGWs5",
"tags": [
{
"createdAt": "2025-01-01T16:06:21.433Z",
"updatedAt": "2025-01-01T16:06:21.433Z",
"id": "m3lF1kYH6ze518Sa",
"name": "Aulas-GgNocode"
},
{
"createdAt": "2025-01-01T16:06:49.095Z",
"updatedAt": "2025-01-01T16:06:49.095Z",
"id": "tmJszTmdICPm7hT6",
"name": "Modelos Demo"
},
{
"createdAt": "2025-01-01T16:07:03.578Z",
"updatedAt": "2025-01-01T16:07:03.578Z",
"id": "Wz7qndE9gBYMKEiG",
"name": "share"
}
]
}
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.
httpbinApiopenAiApi
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About this workflow
Incoming Audio Handler: Conditional ChatGPT Summarization of Transcriptions. Uses lmChatOpenAi, chainLlm, n8n-nodes-evolution-api. Webhook trigger; 21 nodes.
Source: https://github.com/mesquitapetro-crypto/n8n-mcp-knowledge-base/blob/a6cc08e57184733dc87a55f53d291650cc52e9bc/workflows/incoming-audio-handler-conditional-chatgpt-summarization-of-transcriptions.json — original creator credit. Request a take-down →
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