Telegram AI Image Editor with Gemini

The workflow JSON

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{
  "meta": {
    "templateCredsSetupCompleted": true
  },
  "nodes": [
    {
      "id": "61a48c7f-29f0-4cfe-9faf-6b8f78a79734",
      "name": "Photo Message Receiver",
      "type": "n8n-nodes-base.telegramTrigger",
      "position": [
        -96,
        2048
      ],
      "parameters": {
        "updates": [
          "message"
        ],
        "additionalFields": {}
      },
      "typeVersion": 1.2
    },
    {
      "id": "675d0f05-d9f6-446d-9fd1-8ad5965d1b28",
      "name": "Download Telegram Photo",
      "type": "n8n-nodes-base.telegram",
      "position": [
        112,
        2048
      ],
      "parameters": {
        "fileId": "={{ $('Photo Message Receiver').item.json.message.photo[0].file_id }}",
        "resource": "file",
        "additionalFields": {}
      },
      "typeVersion": 1.2
    },
    {
      "id": "c08670f8-81f0-41b9-ac7c-bc30847e5fba",
      "name": "Convert Photo to Base64",
      "type": "n8n-nodes-base.extractFromFile",
      "position": [
        304,
        2048
      ],
      "parameters": {
        "options": {},
        "operation": "binaryToPropery"
      },
      "typeVersion": 1
    },
    {
      "id": "0880f91f-0499-4ee5-a813-398156eeb3b4",
      "name": "Format Image Data URL",
      "type": "n8n-nodes-base.code",
      "position": [
        512,
        2048
      ],
      "parameters": {
        "jsCode": "const items = $input.all();\nconst updatedItems = items.map((item) => {\n  const base64Url = item?.json?.data;\n  const url = `data:image/png;base64,${base64Url}`;\n  return { url };\n});\nreturn updatedItems;\n"
      },
      "typeVersion": 2
    },
    {
      "id": "cb1a2a0c-38d4-47e3-9463-46a1be61f28a",
      "name": "Parse AI Response Data",
      "type": "n8n-nodes-base.set",
      "position": [
        912,
        2048
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "3782b286-b6fd-4943-8530-ff922944b803",
              "name": "base",
              "type": "string",
              "value": "={{ $json.choices[0].message.images[0].image_url.url.split(',')[1] }}"
            }
          ]
        }
      },
      "typeVersion": 3.4
    },
    {
      "id": "398dc9e7-4ff4-4fe8-bcad-aec622a9b63b",
      "name": "Base64 to Binary File",
      "type": "n8n-nodes-base.convertToFile",
      "position": [
        1136,
        2048
      ],
      "parameters": {
        "options": {},
        "operation": "toBinary",
        "sourceProperty": "base"
      },
      "typeVersion": 1.1
    },
    {
      "id": "c9cbd76a-0f2b-4d9f-aed7-0b5a0454f1fc",
      "name": "Send Processed Photo",
      "type": "n8n-nodes-base.telegram",
      "position": [
        1360,
        2048
      ],
      "parameters": {
        "chatId": "YOUR_CHAT_ID_HERE",
        "operation": "sendPhoto",
        "binaryData": true,
        "additionalFields": {}
      },
      "typeVersion": 1.2
    },
    {
      "id": "408c2c7c-3e0a-4a56-baae-d1334fffbb49",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -608,
        1648
      ],
      "parameters": {
        "width": 2240,
        "height": 928,
        "content": "# \ud83e\udd16 Nano Banana AI Image Editor \n\n## \ud83d\udccb Workflow Overview\n**Purpose:** Receives photos via Telegram, processes them with AI vision, and sends back analyzed images\n\n## \ud83d\udd04 Process Flow\n\n1. **\ud83d\udcf1 Photo Message Receiver**\n   - Listens for incoming Telegram messages with photos\n\n2. **\u2b07\ufe0f Download Telegram Photo**\n   - Fetches the photo file from Telegram servers\n\n3. **\ud83d\udd04 Convert Photo to Base64**\n   - Extracts binary data and converts to Base64 format\n\n4. **\ud83d\udd17 Format Image Data URL**\n   - Creates proper data URL format for AI processing\n\n5. **\ud83e\udde0 Nano Banana Image Processor**\n   - Sends image + caption to Gemini 2.5 Flash via OpenRouter\n   - AI analyzes the image and generates response\n\n6. **\ud83d\udcca Parse AI Response Data**\n   - Extracts image URL and metadata from AI response\n\n7. **\ud83d\udcbe Base64 to Binary File**\n   - Converts processed image back to binary format\n\n8. **\ud83d\udce4 Send Processed Photo**\n   - Returns the AI-processed image to Telegram chat\n\n## \u2699\ufe0f Technical Details\n- **AI Model:** Nano Banana(Gemini 2.5 Flash Image Preview)\n- **API Provider:** OpenRouter (Free tier)\n- **Target Chat ID:** Your chat id\n- **Image Format:** PNG\n\n"
      },
      "typeVersion": 1
    },
    {
      "id": "a04f072e-da6b-4d02-8369-556cfa728aab",
      "name": "Nano Banana Image Processor",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        704,
        2048
      ],
      "parameters": {
        "url": "https://openrouter.ai/api/v1/chat/completions",
        "method": "POST",
        "options": {},
        "jsonBody": "={\n  \"model\": \"google/gemini-2.5-flash-image-preview:free\",\n  \"messages\": [\n    {\n      \"role\": \"user\",\n      \"content\": [\n        {\n          \"type\": \"text\",\n          \"text\": \"{{ $('Photo Message Receiver').item.json.message.caption }}\"\n        },\n        {\n          \"type\": \"image_url\",\n          \"image_url\": {\n            \"url\": \"{{ $json.url }}\"\n          }\n        }\n      ]\n    }\n  ]\n}",
        "sendBody": true,
        "sendHeaders": true,
        "specifyBody": "json",
        "authentication": "predefinedCredentialType",
        "headerParameters": {
          "parameters": [
            {
              "name": "Authorization",
              "value": "Bearer $OPENROUTER_API_KEY"
            }
          ]
        },
        "nodeCredentialType": "openRouterApi"
      },
      "typeVersion": 4.2
    }
  ],
  "connections": {
    "Base64 to Binary File": {
      "main": [
        [
          {
            "node": "Send Processed Photo",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Format Image Data URL": {
      "main": [
        [
          {
            "node": "Nano Banana Image Processor",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Parse AI Response Data": {
      "main": [
        [
          {
            "node": "Base64 to Binary File",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Photo Message Receiver": {
      "main": [
        [
          {
            "node": "Download Telegram Photo",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Convert Photo to Base64": {
      "main": [
        [
          {
            "node": "Format Image Data URL",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Download Telegram Photo": {
      "main": [
        [
          {
            "node": "Convert Photo to Base64",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Nano Banana Image Processor": {
      "main": [
        [
          {
            "node": "Parse AI Response Data",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}

About this workflow

Transform your Telegram photos with AI-powered image processing using the revolutionary Nano Banana technology. This workflow automatically receives photos via Telegram, processes them through Google's advanced Gemini 2.5 Flash vision model, and sends back intelligently enhanced…

Source: https://n8n.io/workflows/8082/ — original creator credit. Request a take-down →

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