Test the Face Variable—
The Hardest Creative Element to Iterate
Generate 20 face variants from one winning creative and let the data decide. Launch A/B tests the same day, no photoshoot delays. Combat creative fatigue with instant face variations that keep your campaigns fresh.
Most marketers test headlines. Few test faces.
The face in your ad is one of the highest-impact creative variables—and the hardest to test. You can't A/B test model demographics without booking different models, which is prohibitively expensive. Meanwhile, creative fatigue kills your campaigns and you need constant fresh variants to feed platform algorithms.
Castinger lets you take a single winning creative and generate dozens of face variants in minutes. Test different demographics, ages, and ethnicities across your campaigns. Launch tests the same day, not weeks later. Let the data decide which face converts best.
Test Different Faces on Your Ad Creative
Select different personas and see how they transform the same ad creative. This interactive demo shows exactly how Castinger works for A/B testing.
Result Preview
Drag the slider to compare original vs transformed
Choose a Persona
Click any persona to see the face swap result
Ready to Create Your Own?
Generate unlimited face variants for your ad campaigns with flexible pricing
Why performance marketers choose Castinger
Test Demographics at Scale
Generate ad variants with faces that match each target audience segment. Find out which demographic resonates best with each market.
Dozens of Variants from One Creative
Take a single ad creative and produce 10, 20, or 50 face variations instantly. Run real A/B tests to find the highest-converting version.
Launch Faster
Stop waiting for photoshoots and model bookings. Generate ad variants the same day you plan the campaign. Test and iterate in real-time.
Data-Driven Creative Decisions
Replace gut feelings with data. Let your audience tell you which face converts best by running face-variant A/B tests across your ad platforms.
How to generate face variants for ad testing
Upload Your Ad Creative
Upload the base ad creative with the current model face. Works with static images for social ads, display ads, and landing pages.
Generate Face Variants
Select multiple AI personas to generate variants. Choose faces that match your target demographics and audience segments.
Run A/B Tests
Download all variants and deploy them across your ad platforms. Test which face drives the highest CTR, engagement, and conversions.
Built for performance marketing teams
Performance marketers running paid social campaigns across demographics
Growth teams A/B testing ad creatives for conversion rate optimization
Creative agencies producing ad variants for multiple client segments
DTC brands testing which model face resonates with their target audience
Media buyers who need creative variants fast without waiting for photoshoots
Start testing ad creatives with different faces
Generate your first variants today with flexible pricing.