Reply to Telegram text and voice messages with an OpenAI GPT-4o-mini chatbot and memory
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 11 nodes and runs on Telegram events (message). Along the way it connects Telegram, OpenAI, OpenAI Chat Model and Wikipedia and 1 more.
How it runs
Trigger: On Telegram events (message).
- If: checks a condition and branches into true / false
- Download Telegram Voice (Telegram): work with file
- AI Conversation Agent (AI Agent): runs an AI agent, with model: OpenAI Chat Model; 2 tools (Perform Calculations, Fetch Information from Wikipedia); memory: Manage Conversation Memory
- Transcribe Voice with OpenAI (OpenAI): transcribe (audio)
- Send Response via Telegram (Telegram): uses Telegram
- Append Log to Sheets (Google Sheets): append
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 AI Conversation Agent (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) AI Conversation Agent (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)
- Telegram Trigger
n8n-nodes-base.telegramTrigger - If
n8n-nodes-base.if - Telegram
n8n-nodes-base.telegram - OpenAI
@n8n/n8n-nodes-langchain.openAi - AI Agent
@n8n/n8n-nodes-langchain.agent - OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenAi - Simple Memory
@n8n/n8n-nodes-langchain.memoryBufferWindow - Wikipedia
@n8n/n8n-nodes-langchain.toolWikipedia - Calculator
@n8n/n8n-nodes-langchain.toolCalculator - Google Sheets
n8n-nodes-base.googleSheets
From the author
Quick Overview This workflow listens for incoming Telegram messages, sends each message to an OpenAI chat model via an AI agent with per-chat memory, and replies in the same Telegram conversation with a concise, language-matched response. How it works 1.…