AI Video Generator for Instagram Ads

What this tool does

• The Advertisement tool's script targets any total length from 1 to 60 seconds, defaulting to 15, and the generated timeline is required to sum to exactly that duration.
• Every generated shot specifies six things: visual description, camera movement, lighting style, motion details, the transition to the next shot, and the voiceover line where one applies.
• The tagline field is required and capped at 140 characters, because the final shot must show the product, carry brand presence and integrate the tagline — the director prompt forbids an abrupt ending.
• Input limits are explicit: concept 600 characters, tagline 140, specific shot requests 800, your own voiceover lines 1,200, brand name 80.
• The script is generated on Google Gemini 3.1 Pro with Anthropic Claude Sonnet 4.6 as a cross-provider fallback, so a single provider's outage or rate limit does not stop ad-script generation.
• The finished script is auto-capped to your render model's real prompt limit: Runway 1,800 characters, PixVerse 2,048, Kling 2,500, Vidu 2,000 (Vidu Q1 3,000), and 5,000 on Veo 3.1 and Hailuo.
• Instagram ad placements use 9:16 for Reels and Stories, 4:5 for feed and 1:1 for square. The Advertisement tab's picker — Runway, Kling, Hailuo, PixVerse, Vidu, MiniMax H3 and Veo 3.1 — covers 9:16 and 1:1; 4:5 exists only on HappyHorse 1.1 Text-to-Video and Reference-to-Video, which you reach from the Text-to-Video tab.
• MiniMax H3 text-to-video covers unusually wide formats for a social ad — 21:9, 16:9, 4:3, 1:1, 3:4 and 9:16 at 768P or 2K, 4–15 seconds with audio. Its image-to-video variant has no aspect selector and takes its shape from the input frame.
• Seedance 2 is the only model in the roster offering all four of 480p, 720p, 1080p and 4K, across six aspect ratios from 21:9 to 9:16, at 4–15 seconds — it sits on the Seedance Effects tab rather than in the Advertisement picker.
• For product-led ads, the Product 360 tab spins one photo through a full rotation in 18 styles, with prompts that keep every label, logo and line of text sharp and legible across the whole revolution.
• Free-plan downloads carry a VdoBloom watermark; a paid plan downloads the same render watermark-free.

How it works

1. 1.Write the concept and the tagline

   One or two lines of concept (up to 600 characters) and the tagline that must appear in the closing shot (up to 140). Add a brand name if you want it named on screen. The tool refuses to generate without a tagline because the branded ending depends on it.

2. 2.Attach reference images of the product

   Reference images are analysed for product, environment, textures, lighting and mood, but they are never described literally in the output — the script expands them into macro, environment and detail shots instead of recreating the photo statically.

3. 3.Set the ad length and generate the script

   Choose a target between 1 and 60 seconds (15 is the default). The returned script is a timestamped shot list whose timeline sums to that exact duration, with a separate concatenated voiceover track you can reuse for subtitles.

4. 4.Pick the render model and the placement format

   The editor caps the script to your model's prompt limit and shows a live character counter. Choose 9:16 for Reels and Stories or 1:1 for square feed. Meta's 4:5 feed ratio is not available in the Advertisement picker at all — for that, run the same script on HappyHorse 1.1 from the Text-to-Video tab.

5. 5.Render, then repurpose

   Generate the ad, then reuse the same product image in Product 360 for a listing spin or in the UGC Ad Creator for a talking-creator version of the same claim.

Frequently asked questions

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