An ecommerce AI writer that accurately captures your brand voice

Most AI tools don’t get your brand voice right. They rely on vague descriptors and produce content that feel generic and inconsistent. Our bespoke models learn how your brand actually speaks and apply it accurately across every channel.
Trusted by 500,000+ ecommerce brands & marketers globally

An AI trained on your real content, not vague traits

Your voice comes from examples, not adjectives: The model learns from your real PDPs, listings, brand guides, and campaigns, so it understands how your tone works in practice.

Improves with every interaction: Your approvals and corrections help refine the model, making your voice more accurate and consistent over time.

Understands ecommerce formats: The AI adapts your tone for PDPs, marketplace bullets, and campaigns while keeping your core voice intact.

Rules and governance built for ecommerce teams

Banned and required terms applied automatically: Set rules for brand words, banned phrases, or restricted language. They’re enforced across all content, so no one has to check manually.

Aligned across markets and categories: The AI adapts your voice for each region, adjusting terminology and phrasing so localized content still sounds like your brand.

Stay on-brand with an AI trained for you

Consistently on-brand

Too many in-house or freelance copywriters dilute your brand voice. Train one AI model to write all your content and have them sound like you all the time.

Easily conduct brand audits

How do you ensure all 10,000 pieces of content adhere to your brand voice? Take it easy on your brand team. Run your content through our brand checkers for quick feedback and edits.

Enterprise-grade privacy and security

Your bespoke AI model is trained for you and remains yours. All your data is private to you and securely stored in a SOC 2 Type II compliant environment.

Frequently Asked Questions

How is Hypotenuse AI’s brand voice different from others?

Most AI brand voices are based on descriptive words like imaginative and innovative. But words are too generic and can be interpreted differently by different people.

We take a different approach. Your bespoke model is trained on how you actually write across real ecommerce content: PDPs, marketplace listings, website copy, campaigns, CRM flows, blogs, and social. It studies the patterns in your tone, sentence structure, phrasing, and how you introduce or describe products.

You can also set rules for banned words, required terminology, formatting preferences, and stylistic details like how you use bullets or punctuation. The model follows these rules every time, so messaging stays consistent no matter the channel.

As you use it, your approvals and corrections help refine the voice further. Over time, it gets better at mirroring your tone and stays aligned even as your catalog evolves or your team scales.

It’s the closest thing to having a senior copywriter who knows your brand inside out and never forgets the guidelines.

What if my brand voice isn’t well-defined?

We can start with any material you have and fine-tune along the way. As you generate content, our AI learns what feels right and becomes more aligned over time.

Can we create multiple brand voices?

Yes. Enterprises with multiple brands or sub-brands can have separate AI brand voices and switch between them anytime.

How does Hypotenuse AI ensure generated product copy meets brand and compliance standards?

Your brand voice and guidelines are built directly into the model, so generated copy naturally aligns with your tone and style. The model also improves with your feedback, which helps it stay accurate over time. For stricter oversight, our AI brand compliance checker adds an extra layer to catch anything that slips through, especially after human edits.

"We write hundreds of pieces of content monthly, and needed to quickly implement an elegant solution. Hypotenuse is hands-down the best tool that’s quick, easy, reliable & scalable.”

Crystal Raminez
Vice President, Tobi

I can produce hundreds of descriptions at once, easily customizing tone, style & content to match our brand voice exactly—decreasing production time, freeing up resources and dramatically improving our overall user experience.

Kristin Minasian
Digital Content Producer, Living Spaces

"We write hundreds of pieces of content monthly, and needed to quickly implement an elegant solution. Hypotenuse is hands-down the best tool that’s quick, easy, reliable & scalable.”

Crystal Raminez
Vice President, Tobi

See what Hypotenuse AI can do for your brand

See how leading brands use Hypotenuse AI to keep product content consistent and on-brand.