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AI-Powered Reddit Mention Analysis & Summarization

Automate the analysis of Reddit mentions. This n8n workflow finds relevant posts, classifies them using OpenAI, and generates concise summaries for brand monitoring.

Overview

Automatically finds, filters, and summarizes Reddit posts about your brand or keyword using OpenAI, streamlining social listening and content analysis.

🧠 Description & Use Case

This workflow automates the process of social listening on Reddit. It actively searches for posts mentioning a specific keyword, uses AI to determine their relevance, and generates concise summaries for quick analysis.

🔄 How It Works:

  1. Trigger and Fetch: The workflow starts manually, triggering the Reddit node to search for all new posts containing the keyword n8n.

  2. Initial Filtering: An IF node filters the results to ensure relevance. It only allows posts that:

    • Have 5 or more upvotes.
    • Contain text content (not just a title or link).
    • Were posted within the last 7 days.
  3. Data Preparation: A Set node cleans up the data, trimming the post text to the first 500 characters and organizing key information like URL, date, and upvote count.

  4. AI Classification: The OpenAI Classify node analyzes the trimmed post text to decide if it's genuinely about the topic of interest (in this case, n8n.io). It returns a simple Yes or No.

  5. Relevance Check: A second IF node checks the AI's classification. If the post is not relevant (No), it's discarded. If it is relevant (Yes), it proceeds to the next step.

  6. AI Summarization: For each relevant post, the OpenAI Summary Backup node generates a concise, one-sentence summary of the content.

  7. Final Output: The workflow concludes by using a SetFinal node to structure the final output, providing a clean object with the post's URL, date, upvotes, and the AI-generated summary.

✅ Real-World Use Cases:

  • Brand Monitoring: Automatically track what users are saying about your product, company, or service on Reddit.
  • Customer Feedback Loop: Identify and summarize user feedback, bug reports, and feature requests to inform your product development cycle.
  • Content Curation: Discover and summarize relevant user-generated content for newsletters, social media, or internal reports.
  • Competitive Analysis: Monitor mentions of competitors to stay informed about their market perception and user discussions.
  • Lead Identification: Find posts where users are asking for solutions that your product offers, creating a stream of potential leads.

This workflow is a powerful tool for turning unstructured conversations on Reddit into actionable, summarized insights, saving hours of manual work.

Instructions

Basic steps

  1. Download workflow JSON
  2. Import into n8n
  3. Configure node parameters as needed
  4. Test and enable the workflow

💡 Tips

After importing, verify all connectors and credentials match your environment.

Preview

Workflow Visualization

15 nodes
100%
When clicking "Execute Workflow"manualTriggerRedditredditSticky Note1stickyNoteSetsetIFifSticky Note2stickyNoteIF1ifMergemergeMerge1mergeSetFinalsetSticky Note3stickyNoteOpenAI SummaryopenAiOpenAI ClassifyopenAiOpenAI Summary BackupopenAiSticky NotestickyNote

Nodes

1

When clicking "Execute Workflow"

manualTrigger

v1
2

Reddit

reddit

v1
3

Sticky Note1

stickyNote

v1
4

Set

set

v1
5

IF

if

v1
6

Sticky Note2

stickyNote

v1
7

IF1

if

v1
8

Merge

merge

v2
9

Merge1

merge

v2
10

SetFinal

set

v1
11

Sticky Note3

stickyNote

v1
12

OpenAI Summary

įρᔍ

openAi

v1
13

OpenAI Classify

openAi

v1
14

OpenAI Summary Backup

openAi

v1
15

Sticky Note

stickyNote

v1

Statistics

Total nodes:15
Disabled nodes:1
Node types:7
Connections:9
View full JSON structure
{
  "nodes": [
    {
      "id": "d9bae984-2ce7-4f6b-ab53-527ac9dfea3d",
      "name": "When clicking \"Execute Workflow\"",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        680,
        320
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "32ecf73c-b6e9-4bd6-9ecc-d82c4c50d7b5",
      "name": "Reddit",
      "type": "n8n-nodes-base.reddit",
      "position": [
        880,
        320
      ],
      "parameters": {
        "keyword": "n8n",
        "location": "allReddit",
        "operation": "search",
        "additionalFields": {
          "sort": "new"
        }
      },
      "credentials": {},
      "typeVersion": 1
    },
    {
      "id": "4b560620-a101-4566-b066-4ce3f44d8b0c",
      "name": "Sticky Note1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        120,
        180
      ],
      "parameters": {
        "width": 507.1052631578949,
        "height": 210.9938080495355,
        "content": "## What this workflow does\nâœ”ī¸Ž 1) Get posts from reddit that might be about n8n\n - Filter for the most relevant posts (posted in last 7 days and more than 5 upvotes and is original content)\n\nâœ”ī¸Ž 2) Check if the post is actually about n8n\n\nâœ”ī¸Ž 3) if it is, categorise with OpenAi.\n"
      },
      "typeVersion": 1
    },
    {
      "id": "f3be9af5-b4ff-4f4e-a726-fc05fab94521",
      "name": "Set",
      "type": "n8n-nodes-base.set",
      "position": [
        1260,
        320
      ],
      "parameters": {
        "values": {
          "number": [
            {
              "name": "upvotes",
              "value": "={{ $json.ups }}"
            },
            {
              "name": "subredditSize",
              "value": "={{ $json.subreddit_subscribers }}"
            }
          ],
          "string": [
            {
              "name": "selftextTrimmed",
              "value": "={{ $json.selftext.substring(0,500) }}"
            },
            {
              "name": "subreddit",
              "value": "={{ $json.subreddit }}"
            },
            {
              "name": "date",
              "value": "={{ DateTime.fromSeconds($json.created).toLocaleString() }}"
            },
            {
              "name": "url",
              "value": "={{ $json.url }}"
            }
          ]
        },
        "options": {},
        "keepOnlySet": true
      },
      "typeVersion": 1
    },
    {
      "id": "b1dbf78f-c7c6-4ab7-a957-78d58c5e13e3",
      "name": "IF",
      "type": "n8n-nodes-base.if",
      "position": [
        1060,
        320
      ],
      "parameters": {
        "conditions": {
          "number": [
            {
              "value1": "={{ $json.ups }}",
              "value2": "=5",
              "operation": "largerEqual"
            }
          ],
          "string": [
            {
              "value1": "={{ $json.selftext }}",
              "operation": "isNotEmpty"
            }
          ],
          "dateTime": [
            {
              "value1": "={{ DateTime.fromSeconds($json.created).toISO() }}",
              "value2": "={{ $today.minus({days: 7}).toISO() }}"
            }
          ]
        }
      },
      "typeVersion": 1
    },
    {
      "id": "a3aa9e43-a824-4cc1-b4e6-d41a2e8e56cd",
      "name": "Sticky Note2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        120,
        660
      ],
      "parameters": {
        "width": 504.4736842105267,
        "height": 116.7797420572507,
        "content": "## Drawbacks\n🤔 Workflow only considers first 500 characters of each reddit post. So if n8n is mentioned after this amount, it won't register as being a post about n8n.io."
      },
      "typeVersion": 1
    },
    {
      "id": "b3d566aa-1645-4c2c-9704-15aa2e42bb12",
      "name": "IF1",
      "type": "n8n-nodes-base.if",
      "position": [
        1880,
        340
      ],
      "parameters": {
        "conditions": {
          "string": [
            {
              "value1": "={{ $json.choices[0].text }}",
              "value2": "No",
              "operation": "contains"
            }
          ]
        }
      },
      "typeVersion": 1
    },
    {
      "id": "0ad54272-08b9-46d4-8e6a-1fb55a92d3e4",
      "name": "Merge",
      "type": "n8n-nodes-base.merge",
      "position": [
        1680,
        520
      ],
      "parameters": {
        "mode": "combine",
        "options": {
          "fuzzyCompare": false,
          "includeUnpaired": true
        },
        "combinationMode": "mergeByPosition"
      },
      "typeVersion": 2
    },
    {
      "id": "288f53cc-0e53-4683-ac0e-debe0a3691b8",
      "name": "Merge1",
      "type": "n8n-nodes-base.merge",
      "position": [
        2340,
        540
      ],
      "parameters": {
        "mode": "combine",
        "options": {
          "fuzzyCompare": false,
          "includeUnpaired": true
        },
        "combinationMode": "mergeByPosition"
      },
      "typeVersion": 2
    },
    {
      "id": "46280db5-e4b0-4108-958a-763b6410caa0",
      "name": "SetFinal",
      "type": "n8n-nodes-base.set",
      "position": [
        2560,
        540
      ],
      "parameters": {
        "values": {
          "number": [
            {
              "name": "upvotes",
              "value": "={{ $json.upvotes }}"
            },
            {
              "name": "subredditSize",
              "value": "={{ $json.subredditSize }}"
            }
          ],
          "string": [
            {
              "name": "subreddit",
              "value": "={{ $json.subreddit }}"
            },
            {
              "name": "bulletSummary",
              "value": "={{ $json.text }}"
            },
            {
              "name": "date",
              "value": "={{ $json.date }}"
            },
            {
              "name": "url",
              "value": "={{ $json.url }}"
            }
          ]
        },
        "options": {},
        "keepOnlySet": true
      },
      "typeVersion": 1
    },
    {
      "id": "ac8c4847-4d73-4dce-9543-a199e8b11b51",
      "name": "Sticky Note3",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        120,
        400
      ],
      "parameters": {
        "width": 507.1052631578949,
        "height": 247.5386996904026,
        "content": "## Next steps\n* Improve OpenAI Summary node prompt to return cleaner summaries.\n* Extend to **more platforms/sources** - e.g. it would be really cool to monitor larger slack communities in this way. \n* Do some classification on type of user to highlight users likely to be in our **ICP**.\n* Separate a list of data sources (reddit, twitter, slack, discord etc.), extract messages from there and have them go to a **sub workflow for classification and summarisation.**"
      },
      "typeVersion": 1
    },
    {
      "id": "12ab5ba4-d24d-4fa1-a0d1-d1e81e2d5dee",
      "name": "OpenAI Summary",
      "type": "n8n-nodes-base.openAi",
      "notes": "A one sentence summary of what the post is about.",
      "disabled": true,
      "position": [
        2160,
        160
      ],
      "parameters": {
        "input": "={{ $json.selftextTrimmed }}",
        "options": {
          "temperature": 0.3
        },
        "operation": "edit",
        "instruction": "Summarise what this is talking about in a meta way less than 20 words. Ignore punctuation in your summary and return a short, human readable summary."
      },
      "credentials": {},
      "typeVersion": 1
    },
    {
      "id": "e303a1aa-ee93-4f8f-b834-19aa8da7fe95",
      "name": "OpenAI Classify",
      "type": "n8n-nodes-base.openAi",
      "notes": "Is the post about n8n?",
      "position": [
        1460,
        320
      ],
      "parameters": {
        "prompt": "=Decide whether a reddit post is about n8n.io, a workflow automation low code tool that can be self-hosted, or not.\nReddit Post: {{ $json.selftextTrimmed }}\nAbout n8n?: Yes/No",
        "options": {
          "maxTokens": 32
        },
        "simplifyOutput": false
      },
      "credentials": {},
      "notesInFlow": true,
      "typeVersion": 1
    },
    {
      "id": "f56cb8b6-4c28-448e-b259-8946ffc4c1f7",
      "name": "OpenAI Summary Backup",
      "type": "n8n-nodes-base.openAi",
      "notes": "A one sentence summary of what the post is about.",
      "position": [
        2160,
        340
      ],
      "parameters": {
        "prompt": "=Summarise what this is talking about in a meta way in only 1 sentence.\n\n {{ $json.selftextTrimmed }}",
        "options": {
          "maxTokens": 128
        }
      },
      "credentials": {},
      "typeVersion": 1
    },
    {
      "id": "d1eacbf2-9cc8-482d-a7d2-34c351f20871",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        640,
        520
      ],
      "parameters": {
        "width": 843.411496498402,
        "height": 258.676790119369,
        "content": "## What we learned\n- đŸĒļ **Writing prompts**: small changes in the type of prompt result in very different results. e.g. for Summarising OpenAI would use multiple sentences even if we asked it to use only 1. We got better results by following OpenAI's documentation.\n - We could make OpenAI node easier to work with for new users by the node inputs being oriented not to sending parameters to api but by following [their suggestions](https://platform.openai.com/docs/guides/completion/prompt-design) - e.g. have a field for expected output format rather than just for prompt.\n- â†•ī¸ **Changing the max_tokens parameter** drastically changes results - sometimes making it smaller even improves results (e.g. when you want a yes/no response in the OpenAI Classify node). In their [docs](https://platform.openai.com/docs/guides/completion/inserting-text) they recommend using max_tokens>256 but [n8n by default](https://community.n8n.io/t/openai-result-not-complete/21533) uses max_tokens=16. We should probably update this."
      },
      "typeVersion": 1
    }
  ],
  "connections": {
    "IF": {
      "main": [
        [
          {
            "node": "Set",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "IF1": {
      "main": [
        null,
        [
          {
            "node": "OpenAI Summary Backup",
            "type": "main",
            "index": 0
          },
          {
            "node": "Merge1",
            "type": "main",
            "index": 1
          }
        ]
      ]
    },
    "Set": {
      "main": [
        [
          {
            "node": "OpenAI Classify",
            "type": "main",
            "index": 0
          },
          {
            "node": "Merge",
            "type": "main",
            "index": 1
          }
        ]
      ]
    },
    "Merge": {
      "main": [
        [
          {
            "node": "IF1",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Merge1": {
      "main": [
        [
          {
            "node": "SetFinal",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Reddit": {
      "main": [
        [
          {
            "node": "IF",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "OpenAI Classify": {
      "main": [
        [
          {
            "node": "Merge",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "OpenAI Summary Backup": {
      "main": [
        [
          {
            "node": "Merge1",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "When clicking \"Execute Workflow\"": {
      "main": [
        [
          {
            "node": "Reddit",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}

Actions

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Categories:
Tags:
manualtriggerifsetmergestickynoteopenaireddit

Technical Specs

Complexity:
Advanced
Node Count:
15 nodes
Published:11 months ago
Updated:5 days ago

Compatibility

Platform:
N8N Cloud & Self-hosted
Min Version:
N8N v1.0.0+
Supports cloud and self-hosted deployment

License

This workflow template follows MIT license, you can freely use, modify and distribute.

Please comply with relevant third-party service terms when using.

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