Sounds human. Says what makes them act.
Sales, marketing, and CRM copy trained on the psychology of persuasion, in your brand voice, for every channel.
The elephant never forgets your brand.
ANALYSE / STRATEGY
Fast, light, and ready for work. Or for binge-watching. Depends which tab you open first.
Example: Copywriter's guided brief, already set up for your brand, next to the draft it generated.
Trusted by
Your marketing team needs an email out in ten minutes,
and the last three drafts all sound the same.
Copywriter learned from 11,500+ texts written by real copywriters and psychologists, not from the internet, so what it writes sounds like a person wrote it, and says exactly what that person needs to hear to act.
From a guided brief
to a finished draft.
Fill in the brief
Describe the product or offer, define who it's for, and write your call to action. Three guided fields, plain language, no prompt engineering.
Copywriter writes the draft
It turns your brief into a complete, on-brand piece of copy, headline, body, and call to action included.
Edit and ship
Refine it inline, right there in the editor, then send it out.
Not trained on the internet.
Trained on what works.
Most AI writes like the average of everything online. Copywriter learned from real psychological writing rules, refined over 12 years, not scraped text.
more sales than copy written by Raiffeisen Bank International's own professional copywriters.
Tested for a year, across 100+ real campaigns, for RBI's CRM program spanning 10 CEE markets. The program went on to win Best CRM Solution in Europe in 2025.
Built on writing psychology.
Not available anywhere else.
| Capability | Lexi | Jasper / Copy.ai | ChatGPT Enterprise |
|---|---|---|---|
| Trained on writing psychology | ✓ | ✗ | ✗ |
| Brand voice mapped to every channel | ✓ | Partial | ✗ |
| Guided brief, not a blank prompt | ✓ | ✗ | ✗ |
| Compliance check before sending | ✓ | ✗ | ✗ |
| Automatic GDPR data masking | ✓ | ✗ | ✗ |
| Regulatory compliance built in | ✓ | Partial | ✗ |
Independently penetration-tested (Infigo IS, May 2025, with a July 2025 follow-up), hosted entirely in the EU. See our full security and compliance page →
Copywriter is for sales and marketing copy.
For other jobs, it's a different tool.
See Supporter
Someone just sent you the same complaint for the third time, and you've got five minutes before it turns into a refund request. Supporter reads the emotion and drafts a reply that actually calms things down.
Explore Supporter →See Analyzer
You hit send, and only after does it hit you that the email sounded stiff, off-brand, or a little robotic. Analyzer catches that before you send anything, and tells you exactly what to fix.
Explore Analyzer →Before you
request a demo.
Do I need to know how to write prompts?
No. You fill in a guided brief, describe the product or offer, define who it's for, and write your call to action, in plain language. No prompt engineering skill required.
Which channels does it write for?
Whichever ones you actually use. We set up Copywriter around your real channels, email, social, SMS, campaigns, during onboarding, it isn't a fixed, one-size-fits-all list.
Will it actually sound like our brand, not generic AI?
Yes. During setup, we train Copywriter on your existing brand materials and writing rules. If you don't have a documented tone of voice yet, we also offer Voicebook, a separate, optional service where our team defines it for you and builds it into Copywriter.
How long until we're live?
About a month from kickoff, once we agree to start working together, 4–6 weeks for heavily regulated clients like banks. Timing depends mostly on how fast your feedback comes back. Every user gets a one-hour onboarding session.
What languages does it write in?
Any language you need. The psychology behind persuasive writing doesn't change with the language, and we already write for clients in Croatian, English, and Serbian today.
Is our data used to train other companies' Lexi?
No. Your data stays in the EU and is never used to train anyone else's model. Lexi runs as a multi-tenant platform with each client's data kept isolated.
Can we edit what Copywriter writes?
Yes. Every draft opens in a full editor, format it, rewrite parts, or adjust anything before you send it.
Who's behind Lexi?
A team of behavioral psychologists and engineers in Zagreb. Twelve years of writing psychology, now built into software.
Ready to see Copywriter
on your own brief?
Control what your company says. And how your customers feel. With psychology.