YouTube Shorts Ads with AI Inside Claude | Polaris

To make YouTube Shorts ads with AI, connect Polaris to Claude via MCP, then describe the ad you want in a normal chat message — Claude asks for any missing settings through tappable option cards and a live panel renders the finished vertical video right in the conversation. Here's the step-by-step.

Before you start

• A Claude account where you can add an MCP connector.
• One product photo, or a short script if you want an AI actor to speak.
• A clear idea of the hook you want to test — Shorts rewards a strong first second more than almost any other format.

Step-by-step: generating a Shorts ad

1. Connect once. Add the Polaris MCP connector at polarisugc.com/api/mcp inside Claude and authorize it. You only do this once.
2. State your brief in chat. Attach the product photo or paste your script, and tell Claude the format, e.g. "Make a 20-second vertical Shorts ad, UGC style, testimonial tone."
3. Choose settings from option cards. Claude surfaces tappable cards for the video model (Kling 3.0, Veo 3.1 Quality/Fast, Seedance 2.0, or Omni for a talking actor), whether to add AI voiceover or music, and whether captions should be burned in.
4. Watch the live panel. The Polaris panel appears inline and shows the render progressing, typically finishing in 20-180 seconds.
5. Recreate if the take is off. One click regenerates the ad without you re-typing the whole brief.
6. Run it as a batch. Ask for several variants at once — different hooks or actors — since Polaris renders them in parallel and hands you a ZIP to download when done.

Web app as a secondary option

Polaris does have a web app, but it's not where the main workflow happens — most people just work inside the Claude conversation. The web app is there mainly if you want to browse a history of past generations outside of chat.

Pro tips for Shorts

• Test hook variations before anything else. Shorts viewers decide to keep watching almost instantly, so a batch of different openings teaches you more than one polished ad.
• Run your script through Copy Judge before rendering video — it's cheaper to fix weak copy at the text stage than after you've spent render credits on it.
• Add burned-in captions as a default. A large share of Shorts get watched muted.
• Keep talking-actor scripts short and casual. Shorts audiences scroll away fast from anything that sounds overly produced.

Honest caveats

Polaris builds every ad around your own product — there's no stock-avatar library to browse, and the AI actor reads your script rather than impersonating a named real person. Treat the output as a strong first draft: creative still needs to be tested against your actual audience, since no generation tool can guarantee a winning hook. If your product sits in a regulated category like health or finance, keep your script's claims compliant — avoid disease/cure or guaranteed-result language regardless of how the ad was produced.

Getting started

The first batch of 12 generations is free with no card needed. After that, Pro runs $49/month for 2,000 credits, roughly 66 video ads, which comes in noticeably cheaper than talking-head tools priced around $110/month.

Open the app, check pricing, read the MCP guide, or browse AI UGC ads.