Helix is an AI agent that runs 24/7 — writing headlines, testing variants, picking winners, and learning what converts for your audience.
Welcome to our platform
95.2% confidence · Winner declared in 18 hours
No credit card required. Free plan available.
No PhD in statistics required. No manual test setup. No waiting around for results.
Add a single script tag to your site. Works with Shopify, WordPress, Squarespace, Webflow, or any custom site. Takes 30 seconds.
<script src="https://cdn.helix.ai/v1.js" data-key="site_xxxxx" async></script>Point the agent at your headlines, CTAs, or landing page copy. Set your goal — more clicks, signups, or purchases. The agent does the rest.
The agent generates copy variants informed by proven viral frameworks, tests them against real traffic, picks winners with statistical rigor, and gets smarter over time.
Six types of copy. Any HTML page. Paste a CSS selector, pick the element type, and the AI does the rest.
Your biggest lever. The hook decides if a visitor stays or bounces in the first three seconds.
"Stop losing 30% of your leads" beats "Get 30% more leads"
The bridge between headline and action. Most sites waste this space restating the headline.
Short benefit-driven copy under the hero
First-person, benefit-led CTAs beat generic ones by 20-30% in most funnels.
"Start my free trial" beats "Sign Up"
Four words on a button can swing a conversion rate by a third. Specific action verbs win.
"Get my pricing" beats "Contact sales"
Long-form paragraph text on landing pages, product pages, and blog posts. Test length and tone.
Concise benefit-first vs detailed educational copy
Tell people what they get, not what you built. Concrete and specific beats clever.
"Ship 3× faster" beats "AI-powered workflow automation"
Works on landing pages, pricing pages, blog posts, product pages, checkout flows — any HTML page with your snippet installed.
Every feature exists because it moves the needle on conversions. No vanity metrics. No bloat.
Builds a unique Copy DNA profile for each site. Learns which hooks, tones, and structures resonate with your specific audience — and gets smarter with every test.
Full autopilot, semi-autonomous with approval gates, or fully manual — you choose how much control to give the agent. Change it any time.
No fixed sample sizes. Continuously updates confidence as data flows in. Declares winners at 95%+ probability. Handles low-traffic sites gracefully.
One script tag works on Shopify, WordPress, Squarespace, Webflow, and custom sites. No plugins to install. No developer needed.
Test any text element on your page. Headlines, subheadlines, call-to-action buttons, product descriptions, and landing page copy.
Every variant passes through a humanizer that strips formulaic patterns, matches your brand voice, and varies sentence rhythm. No one will know it's AI.
Everything you need to know about putting your copy optimization on autopilot.
Every day without testing is a day of lost conversions. Helix starts optimizing your website copy in minutes — no manual work required.
No credit card required. Free plan available.
AI-powered A/B testing that runs while you sleep.