Generate AI Videos from Telegram Messages with Nano Banana & Veo-3

How to use the provided n8n workflow (step‑by‑step), what matters, what it’s good for, and costs per run.

What this workflow does (in simple terms)

1. You write (or speak) your idea in Telegram.
2. The workflow builds two short prompts:
   • Image prompt → generates one thumbnail via KIE.ai – Nano Banana (Gemini 2.5 Flash Image).
   • Video prompt → starts a Veo‑3 (KIE.ai) video job using the thumbnail as init image.
3. You receive the thumbnail first, then the short video back in Telegram once rendering completes.

Typical output: 1 PNG thumbnail + 1 short MP4 video (e.g., 8–12 s, 9:16).

Why this is useful

• Rapid ideation: Turn a quick text/voice idea into a ready‑to‑post thumbnail + matching short video.
• Consistent look: The video uses the thumbnail as init image, keeping colors, objects and mood consistent.
• One chat = full pipeline: Everything happens directly inside Telegram—no context switches.
• Agency‑ready: Collect ideas from clients/team chats, and deliver outputs quickly.

What you need before importing

1. KIE.ai account & API key

   • Sign up/in at KIE.ai, go to Dashboard → API / Keys.
   • Copy your KIE_API_KEY (keep it private).

2. Telegram Bot (BotFather)

   • In Telegram, open @BotFather → command /newbot.
   • Choose a name and a unique username (must end with bot).
   • Copy your Bot Token (keep it private).

3. Your Telegram Chat ID (browser method)

   • Send any message to your bot so you have a active chat
   • Open Telegram web and the chat with the bot
   • Find the chatid in the URL

Import & minimal configuration (n8n)

1. Import the provided workflow JSON in n8n.
2. Create Credentials:
   • Telegram API: paste your Bot Token.
   • HTTP (KIE.ai): usually you’ll pass Authorization: Bearer {{ $env.KIE_API_KEY }} directly in the HTTP Request node headers, or make a generic HTTP credential that injects the header.
3. Replace hardcoded values in the template:
   • Chat ID: use an Expression like {{$json.message.chat.id}} from the Telegram Trigger (prefer dynamic over hardcoded IDs).
   • Authorization headers: never in query params—always in Headers.
   • Content‑Type spelling: Content-Type (no typos).
     `

How to run it (basic flow)

1. Start the workflow (activate trigger).
2. Send a message to your bot, e.g.
   glass hourglass on a black mirror floor, minimal, elegant
3. The bot replies with the thumbnail (PNG), then the Veo‑3 video (MP4).

If you send a voice message, the flow will download & transcribe it first, then proceed as above.

Pricing (rule of thumb)

• Image (Nano Banana via KIE.ai): ~ $0.02–$0.04 per image (plan‑dependent).
• Video (Veo‑3 via KIE.ai):
  • Fast: ~ $0.40 per 8 seconds (~$0.05/s)
  • Quality: ~ $2.00 per 8 seconds (~$0.25/s)

Typical run (1 image + 8 s Fast video) ≈ $0.42–$0.44.

These are indicative values. Check your KIE.ai dashboard for the latest pricing/quotas.

Why KIE.ai over the “classic” Google API?

• Cheaper in practice for short video clips and image gen in this pipeline.
• One vendor for both image & video (same auth, similar responses) = less integration hassle.
• Quick start: Playground/tasks/status endpoints are n8n‑friendly for polling workflows.

Security & reliability tips

• Never hardcode API keys or Chat IDs into nodes—use Credentials or Environment variables.
• Add IF + error paths after each HTTP node:
  • If status != 200 → Send friendly Telegram message (“Please try again”) + log to admin.
• If you use callback URLs for video completion, ensure the URL is publicly reachable (n8n Webhook URL). Otherwise, stick to polling.
• For rate limits, add a Wait node and limit concurrency in workflow settings.
• Keep aspect & duration consistent across prompt + API calls to avoid unexpected crops.

Advanced: voice input (optional)

• The template supports voice via a Switch → Download → Transcribe (Whisper/OpenAI).
• Ensure your OpenAI credential is set and your n8n instance can fetch the audio file from Telegram.

Example prompt patterns (keep it short & generic)

• Thumbnail prompt: “Minimal, elegant, surreal [OBJECT], clean composition, 9:16”
• Video prompt: “Cinematic [OBJECT]. slow camera move, elegant reflections, minimal & surreal mood, 9:16, 8–12s.”

You can later replace the simple prompt builder with a dedicated LLM step or a fixed style guide for your brand.

Final notes

• This template focuses on a solid, reliable pipeline first. You can always refine prompts later.
• Start with Veo‑3 Fast to keep iteration costs low; switch to Quality for final renders.
• Consider saving outputs (S3/Drive) and logging prompts/URLs to a sheet for audit & analytics.

Questions or custom requests?
📩 [email protected]