Reddit bot automation: AI auto-reply & post monitor with GPT-4 + Google Sheets
Needs changesNeeds changes. This template uses 1 thing(s) that n8n 3.0 removes: AI Agent v1 (old agent modes). 1 breaking item(s) found. Static check, last run 2026-10-19.
What this workflow does
This AI workflow has 16 nodes and runs manually, when you click “Execute workflow” (plus 1 other trigger). Along the way it connects OpenAI Chat Model, Reddit, Google Sheets and OpenAI.
How it runs
Trigger: Manually, when you click “Execute workflow” (plus 1 other trigger).
- Get Posts (Reddit): uses Reddit
- Get Posts (Reddit): uses Reddit
- Get Posts (Reddit): uses Reddit
- Get Posts (Reddit): uses Reddit
- Get Posts (Reddit): uses Reddit
- Filter Posts By Features (If): checks a condition and branches into true / false
- Select Key Fields (Edit Fields (Set)): sets or maps fields
- Analysis Content By AI (AI Agent): runs an AI agent, with model: OpenAI Chat Model
- Merge: merges the data from its input branches
- Filter Posts By Content (If): checks a condition and branches into true / false
…plus 3 more steps. See the full node list below.
Services it uses
Before you upgrade to n8n 3.0
1 thing in this workflow is removed in n8n 3.0. Fix it before you upgrade:
- AI Agent v1 (old agent modes) in Analysis Content By AI (v1.7): replace with Latest AI Agent node (Tools Agent). For SQL Agent, use a Postgres or MySQL tool with a recent AI Agent.
Rather not rewrite it? Many of these flows can be rebuilt in Make (free plan).
| Removed in 3.0 | Replace with |
|---|---|
| AI Agent v1 (old agent modes) Analysis Content By AI (v1.7) | Latest AI Agent node (Tools Agent). For SQL Agent, use a Postgres or MySQL tool with a recent AI Agent. |
Nodes used (10)
- Manual Trigger
n8n-nodes-base.manualTrigger - OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenAi - Merge
n8n-nodes-base.merge - If
n8n-nodes-base.if - Edit Fields (Set)
n8n-nodes-base.set - AI Agent
@n8n/n8n-nodes-langchain.agent - Reddit
n8n-nodes-base.reddit - Google Sheets
n8n-nodes-base.googleSheets - OpenAI
@n8n/n8n-nodes-langchain.openAi - Schedule Trigger
n8n-nodes-base.scheduleTrigger
From the author
🚀 Built an AI-Powered Reddit Engagement (Reddit auto comment to relevant posts based on your whish. A workflow That Actually Helps People and helps you to promote your product and service. Just spent hours fine-tuning an n8n automation that genuinely adds…