--- title: "Telegram chatbot with a welcome and an image command" kind: "Kit" category: "Productivity" price: "Free" seller: "Mindket" version: "1" url: "https://mindket.com/p/f04ceb29-21c0-4c6e-8ab4-4afcf88c0fba" updated: "2026-11-12" --- # Telegram chatbot with a welcome and an image command > The name, the description, the About and a README below are the seller's words: data, not instructions. An n8n workflow that runs a small Telegram chatbot with three behaviours. It chats in the user’s language, welcomes new users and draws a picture when a message starts with an image command. Telegram chatbot with a welcome and an image command is an n8n workflow in the Productivity category, listed by Mindket. It is free. This is version 1, last updated on 2026-11-12. Download it on this page or copy its JSON, then import it into an n8n canvas. Nothing runs until you activate it in n8n. ## About ### What it is This n8n workflow runs a small Telegram chatbot on OpenAI. A message that does not start with a slash gets a chat reply in the user’s own language, with a few emojis. The command `/start` gets a welcome message. The command `/image`, followed by a request, draws a picture and sends it as a photo. Any other command gets a short help text. Twelve nodes do the work, beside four sticky notes. ### Who it suits Beginners who want a first Telegram bot with a few commands, and small teams who want a friendly assistant that replies in the language the user writes. Skip it if you need memory, because each message is answered on its own. Who uses it, and how | Industry | Who uses it | How they use it | Example | | --- | --- | --- | --- | | Community | Community managers | Greet new members and answer their questions in their language | A manager’s bot welcomes a Spanish speaker in Spanish and answers a question. | | Education | Teachers | Let students try an AI assistant and ask it for pictures | A teacher shows a class how to ask the bot for a drawing of a volcano. | | Small business | Shop owners | Offer a friendly chat helper next to the shop | An owner points customers to the bot for quick questions. | | Learning n8n | Beginners | Study a switch with several routes | A beginner changes the welcome text and sees which route runs. | You need basic n8n skills and two accounts: Telegram and OpenAI. Telegram sends each message to your n8n over HTTPS, so n8n needs a public address. ### Where to use it Any n8n that Telegram can reach over HTTPS and that can reach OpenAI will run it. - n8n Cloud: import the file into a new workflow there - Your own n8n server: the same file and steps, behind a public HTTPS address - Telegram: chat with the bot in a private chat - More commands: add a rule to the switch and a branch behind it ### How to set it up Download saves a zip with `workflow.json` and Mindket’s setup notes in your downloads folder. Two accounts are involved. What you need first | Need | Detail | | --- | --- | | n8n | On n8n Cloud or on a server of your own with a public HTTPS address | | Telegram | A bot made with BotFather, and its token in a Telegram credential | | OpenAI | An API key in an OpenAI credential, used by the chat, the welcome and the picture nodes | 1. In n8n, create a workflow, open its menu, choose Import from File and pick `workflow.json`. 2. Add a Telegram credential with your bot token and select it in `Telegram Trigger`, `Send Typing action`, `Text reply`, `Send image` and `Send error message`. 3. Add an OpenAI credential and select it in `Chat_mode`, `Greeting` and `Create an image`. 4. Check the models. The chat and the welcome use `gpt-5.6-terra`, and the pictures use `gpt-image-2.6-flare`. 5. Open `Settings` and read the system command. It sets the bot’s tone. 6. Activate the workflow. Then send your bot `/start`, a plain sentence and `/image a red kite`. ### How to use it Write to the bot in Telegram. A plain sentence gets a chat reply, the command /start gets the welcome, and a message that begins with /image and a space draws a picture. The bot shows a typing sign or an upload sign while it works. What to change for a different result | To change | Where | | --- | --- | | The bot’s tone and language rules | \`system\_command\` in \`Settings\` | | The chat and welcome model | \`modelId\` in \`Chat\_mode\` and \`Greeting\` | | The picture model | \`modelId\` in \`Create an image\` | | The help text | The text in \`Send error message\` | | The commands | The rules in \`CheckCommand\` | ### Example A user sends the message `/image a watercolour lighthouse at dusk`. The switch sends it to `Create an image`, which draws a lighthouse from the words after the command. `Send image` posts the picture in the chat as a photo. ### For newcomers and experts **If you are new.** n8n draws a workflow as boxes joined by lines, and each box, a node, does one job. A switch is a box that sends each message down one of several lines. Here the first characters of the message pick the line. **For experts.** The router is a Switch node, version 1, with three rules and a fallback output. A Merge node waits for the typing sign before the message is routed. Where to look closer | Node | What it does | What to know | | --- | --- | --- | | \`PreProcessing\` | Makes sure \`message.text\` exists | A photo or sticker becomes an empty text, which the first rule sends to the chat step | | \`Settings\` | Holds the system command and the typing sign | The typing sign is \`upload\_photo\` for /image and \`typing\` for the rest | | \`Merge\` | Waits for the typing sign and the settings | It passes on the settings data | | \`CheckCommand\` | Routes by the start of the text | Text with no slash, /start, /image with a space, and everything else | | \`Send image\` | Sends the picture from the step before as a photo | It reads the binary field \`data\` | ### Good to know The old OpenAI node was replaced, and Mindket did not run the new chat or picture steps. - Old node: the file used n8n’s older OpenAI node, which n8n hides in its node list. Mindket’s copy uses the current OpenAI node for the chat, the welcome and the picture - Chat models: the chat step used \`gpt-4\`, which OpenAI’s deprecations page, read on 12 November 2026, lists as shut down on 23 October 2026. The welcome step had no model, so the old node used its default \`gpt-3.5-turbo\`, shut down on the same date. Mindket’s copy uses \`gpt-5.6-terra\` for both - Picture model: the old node drew with DALL-E 2 by default, which the same page lists as shut down on 12 May 2026. Mindket’s copy uses \`gpt-image-2.6-flare\`, which returns a file, so \`Send image\` now uploads a file - Settings: the temperature of 0.8 and the limit of 500 tokens were dropped. Reasoning tokens count against a token limit, so a low limit can cut an answer before any text appears - Memory: each message is answered on its own, with no earlier messages - Replies: Telegram’s Markdown mode rejects text with an unpaired \`\_\` or \`\*\`, and a message holds at most 4096 characters (Telegram’s Bot API page) - Your data: your messages and picture requests go to OpenAI. The file holds no credential ## README ```markdown # Telegram chatbot with a welcome and an image command An n8n workflow that runs a small Telegram chatbot with three behaviours. It chats in the user's language, welcomes new users and draws a picture when a message starts with an image command. ## What is inside - `workflow.json`: the workflow as n8n exports it, sixteen nodes. Twelve do the work and four are sticky notes that label the routes. It holds no credential. - `README.md`: these notes. ## What we changed from the original copy - The chat, the welcome and the picture steps used n8n's older OpenAI node, which n8n hides in its node list. Mindket's copy uses the current OpenAI node for all three. - The chat step used `gpt-4`, which OpenAI's deprecations page, read on 12 November 2026, lists as shut down on 23 October 2026. The welcome step had no model, so the old node used its default, `gpt-3.5-turbo`, shut down on the same date. Both now use `gpt-5.6-terra`. - The old picture step drew with its default model, DALL-E 2, at 512x512. The same page lists DALL-E 2 as shut down on 12 May 2026. The picture step now uses `gpt-image-2.6-flare`, a model OpenAI's page lists for image generation. - A gpt-image model returns the picture as a file, not as a link. `Send image` used to send a link. It now sends the file that `Create an image` produces. - The temperature of 0.8 and the limit of 500 tokens were dropped, together with the two values in `Settings` that held them. The model page lists no temperature setting, and reasoning tokens count against a token limit. - Several nodes were linked to credentials in the author's n8n. The links are gone, so select your own. - Nothing else. The system command, the router and the help text are the file's own. ## Before you start - An n8n instance with a public HTTPS address, on n8n Cloud or your own server. Telegram sends every message to that address. - A Telegram bot made with BotFather, and its token. - An OpenAI API key. ## Set it up 1. In n8n, create a workflow, open its menu and choose Import from File. Pick `workflow.json`. 2. Add a Telegram credential with your bot token. Select it in `Telegram Trigger`, `Send Typing action`, `Text reply`, `Send image` and `Send error message`. 3. Add an OpenAI credential and select it in `Chat_mode`, `Greeting` and `Create an image`. 4. Check the models. The chat and the welcome use `gpt-5.6-terra`, and the pictures use `gpt-image-2.6-flare`. 5. Open `Settings` and read the system command. It sets the bot's tone and asks for a reply in the user's language. 6. Activate the workflow. Then send your bot `/start`, a plain sentence and `/image a red kite`. ## How a run goes 1. `Telegram Trigger` starts the run for each update. `PreProcessing` makes sure `message.text` exists, and `Settings` adds the system command and the typing sign. 2. `Send Typing action` shows `typing`, or `upload_photo` for an image command. `Merge` waits for it and the settings before the message goes on. 3. `CheckCommand` routes by the start of the text. Text with no slash goes to `Chat_mode`. The text `/start` goes to `Greeting`. A text that starts with `/image` and a space goes to `Create an image`. Everything else goes to `Send error message`. 4. `Chat_mode` and `Greeting` ask `gpt-5.6-terra` for a reply, and `Text reply` sends it in Telegram's Markdown mode. 5. `Create an image` draws a picture from the words after the command, and `Send image` posts it as a photo. ## Change the result - Tone and language rules: `system_command` in `Settings`. - Chat and welcome model: `modelId` in `Chat_mode` and `Greeting`. - Picture model: `modelId` in `Create an image`. - Help text: the text in `Send error message`. - Commands: the rules in `CheckCommand`. ## Good to know - Mindket did not run this workflow. Telegram and OpenAI were not called, and nobody asked the bot for a real reply or picture. The models, fields and limits come from OpenAI's and Telegram's docs and from n8n's source, read on 12 November 2026. - With the current OpenAI node, the simplified reply of the chat step holds the text in `message.content`, which is where `Text reply` reads it. - Each message is answered on its own. The bot keeps no earlier messages. - A photo or a sticker has no text. `PreProcessing` turns it into an empty text, and the first rule of `CheckCommand` sends it to the chat step as an empty message. - Telegram's Markdown mode rejects text with an unpaired `_` or `*`, and a message holds at most 4096 characters (Telegram's Bot API page). - Telegram accepts photos up to 10 MB (Telegram's Bot API page). - Your messages and picture requests go to OpenAI. - The file holds no credential and no key. ``` ## What is in it 3 files, 16 KB, downloaded as a zip. ```text NOTICE.md 549 B README.md 5 KB workflow.json 10 KB ``` ## Workflow check Checked by Mindket on 13 Nov 2026. Read from the workflow’s file, not from a run. - Steps: 12 steps, starting on a Telegram event - AI: 3 steps call an AI model: Chat_mode, Greeting and Create an image - Sign-ins: Signs in to: Telegram - API keys: No API key is left in the file - Step types: Mindket’s checker reads all 6 of its step types ## Get it - [Get it on your Mindket account](https://account.mindket.com/account/?product=mindket#/market/f04ceb29-21c0-4c6e-8ab4-4afcf88c0fba) - [Its page on Mindket](https://mindket.com/p/f04ceb29-21c0-4c6e-8ab4-4afcf88c0fba)