AI Creative Best Practices for Meta Ads

Last updated: April 18, 2026

Getting results from AI-generated creatives is not just about clicking "Generate." The quality of your output depends on how you set up your inputs — from the prompt you write, to the format you choose, to how you combine elements. This guide covers what you need to produce AI creatives that perform in Meta campaigns.

AI Generation Overview — What You Can Create

Prerequisites

An active Wevion account with AI credits available. Understanding AI Credits
Familiarity with Creative Hub and the AI Generation Panel. Creative Hub Overview — Your Media Library
At least one AI generation completed, or readiness to start generating. AI Generation Overview — What You Can Create

Image Best Practices

Choose the Right Format for Your Placement

Format	Dimensions	Best For
Feed Square (1:1)	1080 x 1080 px	Facebook and Instagram feed — the safest all-around choice
Feed Portrait (4:5)	1080 x 1350 px	Instagram feed — more vertical screen space on mobile
Stories / Reels (9:16)	1080 x 1920 px	Full-screen vertical placements
Landscape (16:9)	1920 x 1080 px	In-stream video placements and desktop-heavy audiences
Right Column (~1.91:1)	1200 x 628 px	Facebook right column and link preview ads

If you can only generate one size, start with 1:1 — it adapts best across placements. If you can produce two, pair a 1:1 with a 9:16 to cover both feed and Stories.

Resolution Recommendations

Always generate at full recommended resolution. Meta compresses images during upload, so starting with a high-quality source gives the algorithm more to work with. Avoid upscaling after generation — the result will look soft on high-density mobile screens.

Writing Effective Image Prompts

The prompt is the most important factor in image quality.

Be concrete about the scene. Instead of "a person using a phone," write "a woman in her 30s at a cafe table, smiling at her phone, soft natural lighting, shallow depth of field."

Specify mood and lighting. Words like "bright," "warm," "editorial," "minimalist," or "high-contrast" steer the visual tone measurably.

Include composition cues. If you need space for text overlay: "product centered in the lower third with clean negative space in the upper half for headline text."

Avoid overloading the prompt. Focus on 3-5 key elements. Describing 15 elements in one scene leads to incoherent results.

📸 Side-by-side comparison of an AI-generated image from a vague prompt versus a detailed prompt, showing the difference in quality and usability

Generating AI Images

Video Best Practices

Length and Format

For Meta placements, shorter almost always wins. Aim for 6 to 15 seconds for feed and Stories. If your message needs more time, cap it at 30 seconds and front-load the value. Export as MP4 — the most universally compatible format across Meta placements.

Aspect Ratio

9:16 (vertical): Stories, Reels, and full-screen mobile placements — highest impact for mobile-first audiences
1:1 (square): Feed placements across mobile and desktop — reliable default
16:9 (landscape): In-stream video and desktop-heavy campaigns

Hook in the First 3 Seconds

The first 3 seconds determine whether anyone sees the rest. On Meta, autoplay means your video starts silently as users scroll.

Lead with motion or a visual surprise. A static opening frame looks like a regular image. Movement or a bold color shift creates a reason to stop scrolling.

Show the value proposition immediately. Do not spend the opening on a logo animation.

Design for sound-off viewing. Use text overlays and captions so the message lands without audio.

Generating AI Videos

Avatar Best Practices

AI avatars let you create UGC-style spokesperson videos without hiring talent or coordinating a shoot.

Script Writing

Write the way people talk. Read your script out loud before submitting. Contractions, simple sentences, and direct address ("you," "your") make delivery feel natural.

Keep it short. A 60-second script is roughly 150 words. For a 15-second ad, aim for 35-40 words.

Structure for advertising. Open with a hook or pain point, present the solution, close with a call to action.

Natural Delivery

Vary sentence length. Mix short punchy statements with longer ones for natural rhythm.

Use punctuation to control pacing. Periods create full pauses. Commas create brief pauses. The avatar interprets punctuation as timing cues.

Match the tone to your audience. Casual and energetic for consumer products. Calmer and authoritative for B2B.

Creating AI Avatars (UGC Videos)

TTS Best Practices

Script Pacing

Write for the ear, not the eye. Short, clear sentences with natural breathing points produce the best results.

Insert pauses explicitly. Use commas and periods generously. For longer pauses, add a line break or ellipsis.

Avoid jargon. Common vocabulary is handled more reliably than technical terms or brand names with unusual pronunciations.

Voice Selection

Match the voice to the content. Warm and friendly for lifestyle brands. Clear and measured for professional content. Listen to voice samples before committing.

Stay consistent across a campaign. Use the same voice for all creatives in the same campaign. Switching voices between ads creates a disjointed experience.

Text-to-Speech (TTS) — Voice Generation

Composite Best Practices

Compositing combines avatars, voiceovers, background footage, text overlays, and music into a finished video creative.

Plan before you generate. Sketch out the full structure before producing any single element. Having a plan prevents generating great individual assets that do not fit together.

Match aspect ratios across elements. If your final output is 9:16, generate avatar and background footage in 9:16 as well. Mixing ratios forces cropping or letterboxing.

Use text overlays for key points. Most viewers watch with sound off. Critical voiceover messages should also appear as on-screen text, timed to sync with the spoken words.

Keep the visual hierarchy simple. One focal point at a time. If the avatar is speaking, do not overlay dense text simultaneously.

📸 Composite video timeline showing how avatar, TTS audio, background footage, and text overlay elements are layered together

Video Compositing — Assembling Multi-Element Videos

Meta Ad Policies to Keep in Mind

AI content disclosure. Meta requires disclosure of AI-generated content in certain categories, particularly when depicting realistic people or scenarios related to social issues, elections, or politics. Check Meta's current advertising standards — this policy area is evolving.

Prohibited content still applies. AI generation does not exempt you from standard policies. Misleading claims, prohibited products, and before-and-after images implying guaranteed results will be rejected.

Intellectual property. AI-generated images may occasionally produce elements resembling existing brands or copyrighted material. Review assets before publishing.

Landing page consistency. Meta reviews both creative and landing page. If your ad makes a claim or shows a product, the landing page must match.

Testing and Iteration

Generate multiple variations. For every concept, produce at least 3-5 variations. Small prompt changes can produce significantly different results.

A/B test against traditional creatives. Run AI and conventional assets side by side under identical audience conditions and let the data decide.

Iterate on what works. If a style or visual approach performs well, generate more variations in that direction. If something underperforms, analyze why before producing more.

Refresh frequently. Creative fatigue is real on Meta. AI makes it fast and inexpensive to produce fresh variations on a regular cadence.

Creating Ad Creatives — Images, Videos, and Copy

FAQ

How many credits does each generation type use? Credit costs vary by type and complexity. Image generation is the least expensive, while composite videos cost more. Check your plan details for exact allocations. Understanding AI Credits

Can I edit an AI-generated image after creation? Yes. Generated assets are saved as standard files in Creative Hub. Download and edit externally, use as a base for image-to-image generation, or include as elements in a composite video.

What if Meta rejects my AI-generated ad? Review the rejection reason in Ads Manager. Adjust your prompt to avoid the problematic element and regenerate.

Should I use AI creatives for all my campaigns? They work best for rapid testing, scaling variations, and filling gaps. For hero campaigns, consider combining AI generation with professional design.

Do AI-generated videos perform differently on Meta? Performance depends on creative quality, not production method. Focus on the fundamentals — hook, message, CTA — regardless of how the creative was made.

Is there a risk of ads looking "too AI"? Some outputs can have a synthetic quality, especially avatars and complex scenes. Always review critically before publishing. If something looks off, regenerate.