Generate Images with Pollinations & Blog Articles with Gemini 2.5 from Telegram

This n8n workflow is a Telegram bot that allows users to either:

Generate AI images using Pollinations API, or Generate blog articles using Gemini AI

Users simply type image your prompt or blog your title, and the bot responds with either an AI-generated image or article.

Who's it for This template is ideal for:

Content creators and marketers who want to generate visual and written content quickly

Telegram bot developers looking for real-world AI integration Educators or students automating content workflows Anyone managing content pipelines using Google Sheets

What it does / How it works Telegram Interaction

Trigger Telegram Message: Listens for new messages or button clicks via Telegram

Classify Telegram Input: JavaScript logic to classify input as /start, /help, normal text, or callback Switch Input Type: Directs the flow based on the classification

Menu & Help

Send Main Menu to User: Shows "Generate Image", "Blog Article", "Help" options

Switch Callback Selection: Routes based on button pressed (image, blog, or help)

Send Help Instructions: Sends markdown instructions on how to use the bot

Input Validation Validate Command Format: Ensures input starts with image or blog

Notify Invalid Input Format: If validation fails, informs user of correct format

Image Generator Prompt User for Image Description → When user clicks Generate Image

Detect Text-Based Input Type → Detects if text is image or blog

Switch Text Command Type → Directs whether to generate image or article

Show Typing for Image Generation → Sends "uploading photo..." typing status

Build Image Generation URL → Constructs Pollinations API image URL from prompt

Download AI Image → Makes HTTP request to get the image

Send Image Result to Telegram → Sends image to user via Telegram

Log Image Prompt to Google Sheets → Logs prompt, image URL, date, and user ID

Upload Image to Google Drive → Saves image to Google Drive folder

Blog Article Generator Prompt User for Blog Title → When user clicks Blog Article

Store Blog Prompt → Saves prompt for later use

Log Blog Prompt to Google Sheets → Writes title + user ID to Google Sheets

Send Article Style Options → Offers: Formal, Casual, or News style

Store Selected Article Style → Updates row with chosen style in Google Sheets

Fetch Last User Prompt → Finds the latest prompt submitted by this user

Extract Last Blog Prompt → Extracts row for use in AI request

Gemini Chat Wrapper → Handles input into LangChain node for AI processing

Generate Article with Gemini → Calls Gemini to create 3-paragraph blog post

Parse Gemini Response → Parses JSON string to extract title and content

Send Article to Telegram → Sends blog article result back to user

Log Final Article to Google Sheets → Updates row with final content and timestamp

Requirements

Telegram bot (via @BotFather) Pollinations API (free and public endpoint) Google Sheets & Drive (OAuth credential setup in n8n) Google Gemini / PaLM API key via LangChain Self-hosted or cloud n8n setup

Setup Instructions

Clone the workflow and import it into your n8n instance

Set credentials:

Telegram API Google Sheets OAuth Google Drive OAuth Gemini (via LangChain)

Replace:

Sheet ID with your own Google Sheet Folder ID on Google Drive chat_id placeholders if needed (use expressions instead)

Deploy and send /start in your Telegram bot

🔧 Customization Tips

Edit the Gemini prompt to adjust article length or tone

Add extra style buttons like "SEO", "Story", "Academic"

Add image post-processing (e.g. compression, renaming)

Add error catching logic (e.g. if Pollinations image fails)

Store images with filenames based on timestamp/user

Security Considerations

Use n8n credentials for all tokens (Telegram, Gemini, Sheets, Drive)

Never hardcode your token inside HTTP nodes

Do not expose real Google Sheet or Drive links in shared version

Use Set node to collect all editable variables (like folder ID, sheet name)