Telegram chatbot with voice recognition and message batching using OpenAI

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

This Telegram workflow batches rapid fire messages from the same user into one prompt (20–30s debounce), then sends a single AI reply. It uses two Google Sheets : Message Retention ( ) — queues inc...

Best for

Support Chatbot automation workflows
AI Chatbot automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.set, n8n-nodes-base.if, n8n-nodes-base.merge, n8n-nodes-base.telegram, @n8n/n8n-nodes-langchain.openai, n8n-nodes-base.googlesheets, @n8n/n8n-nodes-langchain.embeddingsopenai, @n8n/n8n-nodes-langchain.lmchatopenai

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Kirill Zolygin.

Original n8n.io source

1.1 Workflow description

Title: Telegram chatbot with voice recognition and message batching using OpenAI
Workflow name: Telegram chatbot with voice recognition and message batching using OpenAI

This Telegram workflow batches rapid-fire messages from the same user into one prompt (20–30s debounce), then sends a single AI reply.

It uses two Google Sheets:

Message Retention (date | user_id | message) — queues incoming messages.
Message Checkup (user_id | is_waiting | last_updated) — debounces per user.

Flow per message:

Log to Message Retention.
Read Message Checkup for that user_id. If empty, synthesize { is_waiting:false }.
IF (OR):
- last_updated is older than 30s, or
- is_waiting is false
  → Start wait window: set is_waiting=true, update last_updated, Wait (e.g., 30s).
After Wait: fetch all queued messages for the user, merge them, delete those rows, send one AI answer to Telegram, then clear the Waiting row.
If a new message arrives while waiting, we only refresh last_updated (extend the window) — we do not start another wait.

Copy/paste:

Older-than-30s: {{ new Date(Date.now() - 30000).toISOString() }}
“No Rows” normalizer (Code node) ensures the IF always has data to check.

Supports text and voice (voice via Whisper). Works reliably on Telegram once the webhook is registered and Sheets are shared with the service account.

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Pass text message

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 2 - Link Filter

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.2

Block 3 - Merge

Type / Role: n8n-nodes-base.merge - merge
Config choices: Version 3.1

Block 4 - Edit Fields

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 5 - Transcript Error Output

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 6 - Transcript Result

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 7 - Get Audio File

Type / Role: n8n-nodes-base.telegram - telegram
Config choices: Version 1.2

Block 8 - Transcribe a recording

Type / Role: @n8n/n8n-nodes-langchain.openAi - openAi
Config choices: Version 1.8

Block 9 - Append row in sheet

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.7

Block 10 - Get row(s) in sheet

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.7

Block 11 - Embeddings OpenAI1

Type / Role: @n8n/n8n-nodes-langchain.embeddingsOpenAi - embeddingsOpenAi
Config choices: Version 1.2

Block 12 - OpenAI Chat Model

Type / Role: @n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices: Version 1.2

Block 13 - AI Agent

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 1.7

Block 14 - Get row(s) in sheet1

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.7

Block 15 - What to do

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.2

Block 16 - Update row in sheet

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.7

Block 17 - Wait

Type / Role: n8n-nodes-base.wait - wait
Config choices: Version 1.1

Block 18 - Delete rows or columns from sheet1

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.7

Block 19 - Update row in sheet1

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.7

Block 20 - No Rows

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 21 - Batch Messages

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 22 - Sticky Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 23 - Sticky Note1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 24 - Simple Memory

Type / Role: @n8n/n8n-nodes-langchain.memoryBufferWindow - memoryBufferWindow
Config choices: Version 1.3

Showing the first 24 of 31 workflow blocks. Download the JSON for the full node graph.

3. Summary Table

Workflow	Telegram chatbot with voice recognition and message batching using OpenAI
Complexity	advanced
Nodes	31
Categories	Support Chatbot, AI Chatbot
Author	Kirill Zolygin
Published	05 Sept 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/8314/8314.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Support Chatbot workflows AI Chatbot workflows

Frequently asked questions

What does Telegram chatbot with voice recognition and message batching using OpenAI do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Support Chatbot, AI Chatbot use case.

Kirill Zolygin

1 workflow

Nodes

n8n-nodes-base.set n8n-nodes-base.if n8n-nodes-base.merge n8n-nodes-base.telegram @n8n/n8n-nodes-langchain.openai n8n-nodes-base.googlesheets @n8n/n8n-nodes-langchain.embeddingsopenai @n8n/n8n-nodes-langchain.lmchatopenai

Complexity

advanced

Published 05 Sept 2025

Likes 0

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Install path: /data/workflows/8314/8314.json

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Telegram chatbot with voice recognition and message batching using OpenAI

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Pass text message

Block 2 - Link Filter

Block 3 - Merge

Block 4 - Edit Fields

Block 5 - Transcript Error Output

Block 6 - Transcript Result

Block 7 - Get Audio File

Block 8 - Transcribe a recording

Block 9 - Append row in sheet

Block 10 - Get row(s) in sheet

Block 11 - Embeddings OpenAI1

Block 12 - OpenAI Chat Model

Block 13 - AI Agent

Block 14 - Get row(s) in sheet1

Block 15 - What to do

Block 16 - Update row in sheet

Block 17 - Wait

Block 18 - Delete rows or columns from sheet1

Block 19 - Update row in sheet1

Block 20 - No Rows

Block 21 - Batch Messages

Block 22 - Sticky Note

Block 23 - Sticky Note1

Block 24 - Simple Memory

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions