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Telegram bot: analyze images with GPT-4o-Mini/NVIDIA Vila & generate images with Stable Diffusion 3

Cheng Siong ChinCheng Siong Chin
348 views
2/3/2026
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Introduction

Transform your Telegram bot into an AI vision system using GPT-4o-Mini and NVIDIA Stable Diffusion 3. Perfect for content moderators, researchers, and developers.

Workflow Explanatory

  1. At start: Processes Telegram messages: images→analysis, text→image generation
  2. At Router: Routes by content type
  3. Upper path: Analyzes images using Nvidia Vila + GPT-4o-Mini
  4. Lower path: Generates images from text via Stable Diffusion 3
  5. At Merge: Combines AI results
  6. At Gmail: Emails processed results

How It Works

  1. Telegram Trigger listens for messages (images, text, documents)
  2. Content Router directs images → AI analysis, text → image generation
  3. Image Analysis: Downloads image → GPT-4o-Mini vision analysis → Email results
  4. Image Generation: Text prompt → Stable Diffusion 3 → Email generated image
  5. Gmail Notifications send formatted reports

Prerequisites

  • Telegram Bot token (via @BotFather)
  • OpenAI API key (GPT-4 Vision)
  • NVIDIA API key (free tier available)
  • Gmail OAuth2 credentials

Setup Steps

Setup Steps

  1. ** Create Telegram Bot** - Create Telegram bot and obtain token
  2. ** Configure API Credentials** - Configure API credentials in HTTP Request nodes
  3. ** Set Up Gmail OAuth2** - Set up Gmail OAuth2
  4. ** Import and Activate Workflow** - Import workflow, update credentials, and activate

Customization Options

  • Add more AI models (Anthropic, Gemini)
  • Route audio/documents to transcription/OCR
  • Replace Gmail with Slack or Discord
  • Connect to databases for storage

Benefits

  • Speed: Seconds per analysis vs. hours manually
  • Accuracy: AI-powered visual understanding
  • Intelligence: Historical tracking enables trend analysis

Telegram Bot: Analyze Images with GPT-4o & Generate Images with Stable Diffusion 3

This n8n workflow creates an interactive Telegram bot that can analyze images using OpenAI's GPT-4o vision capabilities and generate new images using Stable Diffusion 3. It provides a versatile tool for image understanding and creation directly from your Telegram chat.

Description

This workflow simplifies the process of interacting with advanced AI models for image analysis and generation through a user-friendly Telegram bot. Users can send an image to the bot for a detailed description or send a text prompt to generate a new image.

What it does

  1. Listens for Telegram messages: The workflow is triggered by incoming messages to a configured Telegram bot.
  2. Determines message type: It checks if the incoming message contains an image or a text message.
  3. Image Analysis (GPT-4o):
    • If an image is received, it downloads the image.
    • It then sends the image to OpenAI's GPT-4o model with a prompt to analyze and describe the image.
    • The bot sends the detailed description back to the user in Telegram.
  4. Image Generation (Stable Diffusion 3):
    • If a text message is received, it assumes the user wants to generate an image.
    • It sends the text prompt to a Stable Diffusion 3 API (via an HTTP Request node).
    • Once the image is generated, the bot sends the resulting image back to the user in Telegram.
  5. Error Handling: If any issues occur during the process, an email notification is sent via Gmail.

Prerequisites/Requirements

  • n8n Instance: A running n8n instance.
  • Telegram Bot Token: A Telegram bot created via BotFather.
  • OpenAI API Key: An API key for OpenAI with access to GPT-4o.
  • Stable Diffusion 3 API Endpoint: Access to a Stable Diffusion 3 API (e.g., via a custom deployment, a service like Stability AI, or another platform that exposes an HTTP endpoint for image generation).
  • Gmail Account: For error notifications (optional, but recommended).

Setup/Usage

  1. Import the workflow: Download the provided JSON and import it into your n8n instance.
  2. Configure Telegram Trigger:
    • Add your Telegram Bot Token to the "Telegram Trigger" node's credential.
    • Ensure the webhook is set up correctly (n8n will guide you).
  3. Configure OpenAI Node:
    • Add your OpenAI API Key to the "OpenAI" node's credential.
    • Verify the model is set to gpt-4o.
  4. Configure HTTP Request (Stable Diffusion 3):
    • Edit the "HTTP Request" node.
    • Update the URL to your Stable Diffusion 3 API endpoint.
    • Configure any necessary headers (e.g., API keys, content type) and the request body to send the text prompt for image generation.
  5. Configure Gmail (Optional):
    • Add your Gmail credentials to the "Gmail" node if you wish to receive error notifications.
    • Update the "To" email address in the "Gmail" node.
  6. Activate the workflow: Once all credentials and configurations are set, activate the workflow.

Now, you can interact with your Telegram bot:

  • Send an image to get a description.
  • Send a text message (e.g., "a cat riding a skateboard") to generate an image.

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