Nano Banana/Gemini 2.5 Telegram bot with multi-modal functionality

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Important notice

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

1. Workflow Overview

How it works Multi modal AI Image Generator powered by Google's Nano Banana (Gemini 2.5 Flash Image) the latest state of the art image generation model Accepts text, images, voice messages, and PDF...

Best for

Content Creation automation workflows
Multimodal AI automation workflows
advanced n8n builders looking for reusable templates

Tools used

@n8n/n8n-nodes-langchain.openai, n8n-nodes-base.httprequest, n8n-nodes-base.extractfromfile, n8n-nodes-base.if, n8n-nodes-base.set, n8n-nodes-base.stickynote, n8n-nodes-base.switch, n8n-nodes-base.telegram

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Nano Banana/Gemini 2.5 Telegram bot with multi-modal functionality
Workflow name: Nano Banana/Gemini 2.5 Telegram bot with multi-modal functionality

How it works

Multi-modal AI Image Generator powered by Google's Nano Banana (Gemini 2.5 Flash Image) - the latest state-of-the-art image generation model
Accepts text, images, voice messages, and PDFs via Telegram for maximum flexibility
Uses OpenAI GPT models for conversation and image analysis, then Nano Banana for stunning image generation
Features conversation memory for iterative image modifications ("make it darker", "change to blue")
Processes different input types: analyzes uploaded images, transcribes voice messages, extracts PDF text
All inputs are converted to optimized prompts specifically tuned for Nano Banana's capabilities

Set up steps

Create Telegram bot via @BotFather and get API token
Set up Google Gemini API key from Google AI Studio for Nano Banana image generation (~$0.04/image)
Configure OpenAI API key for GPT models (conversation, image analysis, voice transcription)
Import workflow and configure all three API credentials in n8n
Update bot tokens in HTTP request nodes for file downloads
Test with text prompts, image uploads, voice messages, and PDF documents

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 - Analyze Image

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

Block 2 - Download Audio

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 3 - Transcribe Audio

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

Block 4 - Download File

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 5 - Extract from File

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

Block 6 - Only PDF File

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

Block 7 - Text

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

Block 8 - Audio

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

Block 9 - Image

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

Block 10 - File

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

Block 11 - Sticky Note

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

Block 12 - Sticky Note1

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

Block 13 - Sticky Note2

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

Block 14 - Sticky Note3

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

Block 15 - Set Initial Data

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

Block 16 - Switch

Type / Role: n8n-nodes-base.switch - switch
Config choices: Version 3.2

Block 17 - Get Image Url

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 18 - Get File Url

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 19 - Incorrect format

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

Block 20 - Get Audio Url

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 21 - Telegram Trigger

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

Block 22 - Sticky Note4

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

Block 23 - Generator Agent

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 2.1

Block 24 - Simple Memory

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

Showing the first 24 of 36 workflow blocks. Download the JSON for the full node graph.

3. Summary Table

Workflow	Nano Banana/Gemini 2.5 Telegram bot with multi-modal functionality
Complexity	advanced
Nodes	36
Categories	Content Creation, Multimodal AI
Author	Denis
Published	18 Sept 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/8734/8734.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 Content Creation workflows Multimodal AI workflows

Frequently asked questions

What does Nano Banana/Gemini 2.5 Telegram bot with multi-modal functionality 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 Content Creation, Multimodal AI use case.

Denis

4 workflows

Nodes

@n8n/n8n-nodes-langchain.openai n8n-nodes-base.httprequest n8n-nodes-base.extractfromfile n8n-nodes-base.if n8n-nodes-base.set n8n-nodes-base.stickynote n8n-nodes-base.switch n8n-nodes-base.telegram

Complexity

advanced

Published 18 Sept 2025

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/8734/8734.json

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Nano Banana/Gemini 2.5 Telegram bot with multi-modal functionality

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

How it works

Set up steps

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Analyze Image

Block 2 - Download Audio

Block 3 - Transcribe Audio

Block 4 - Download File

Block 5 - Extract from File

Block 6 - Only PDF File

Block 7 - Text

Block 8 - Audio

Block 9 - Image

Block 10 - File

Block 11 - Sticky Note

Block 12 - Sticky Note1

Block 13 - Sticky Note2

Block 14 - Sticky Note3

Block 15 - Set Initial Data

Block 16 - Switch

Block 17 - Get Image Url

Block 18 - Get File Url

Block 19 - Incorrect format

Block 20 - Get Audio Url

Block 21 - Telegram Trigger

Block 22 - Sticky Note4

Block 23 - Generator Agent

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