Optimize messages at superhuman speed and complexity
Stop running one A/B test after the other, without ever actually knowing if you’re sending the best possible message. With Infinity Testing, you can test hundreds of on-brand variants in a fraction of the time—and drive incredible results.
(Based on 184 participating brands in the beta, February 2025)
(Based on 127 participating brands in the beta, February 2025)
The clearest example of using AI to drive higher SMS revenue—only available in Postscript.
It’s time we ditch traditional A/B testing
A/B testing has been a staple for data-driven ecommerce marketers. But let’s be honest:
When you test just two random variants at a time, you’re not finding the best possible message—you’re just identifying the better-performing of the two.
Setting up and running A/B tests (or A/B/C/D…) for multiple flows becomes an overwhelming mess.
Learning what works in a statistically valid way takes forever.
Test copy like a data scientist
Drive meaningful revenue lift for SMS Automations and Campaigns—proven by holdout testing
Infinity Testing combines predictive analytics and generative AI to generate and test hundreds of on-brand message variants that evolve over time. It’s like a data lab that’s constantly working to put money in your pocket.
Have confidence that you’re sending the best performing message, every time
Exploring multiple message variants and optimizing based on performance ensures you're always sending the best possible message to your customers at any given time. Your customers and industry are constantly evolving, and so should your SMS copy.
Learn what works in a fraction of the time
With each Infinity Testing Campaign or Automation, you are testing anywhere from 10 to 1000s of message variants. At the end of the test, you’ll see how each variant performed compared to the control. The AI model also learns from each send, updating its probability model for the next send.
Adam Hutton
Associate Director, Owned Media
“I don't see how it could lose. I mean, just one static message compared to constant iteration of different messages that evolve with performance. I think this is probably the future of SMS. So, yeah, I'm stoked.”
Start Infinity Testing in minutes
Infinity Testing is an advanced testing model that uses predictive analytics and generative AI. Yet it's as simple as a drag-and-drop action into your existing SMS flows.
Set Brand Voice Preferences
Train the AI model on your unique brand voice using Postscript’s Brand Center.
Explore and Optimize
Let Postscript AI create and test anywhere from 10 (for Campaigns) to 1000s (for Automations) of on-brand message variants.
Quickly Gain Insights
Check back after the testing period to see the results. The AI model learns from each test so the more you use it, the better it gets.
See how it works in the walkthrough demo below
Craig Knox
Lifecycle Marketing Manager
“We’re constantly learning and testing through SMS, adapting to what the customer wants, and leveraging AI across our brand. Infinity Testing Campaigns made it so easy - we just plug it in to how we’re already sending Campaigns and we get automatic results. It’s exactly what we needed to achieve this level of testing speed and complexity that we just couldn’t do manually.”
Ready to make SMS your #1 revenue channel?
Fill out the form to get in touch with our team, and they’ll show you everything our platform has to offer—and why Postscript is the leading SMS marketing solution for the biggest brands on Shopify.