Using AI to Design Emails Faster (Without the Slop)
AI can cut email creative from a week to a couple of hours, or fill your sends with generic junk. Learn the ZHS way to use AI in design while keeping the brand intact.
Why AI Speed Is The New Moat
Speed is the new moat in DTC.
Drop your turnaround from five days to one and you can react to a trending moment, a competitor launch, or a restock while it still matters.
But the same tool that hands you that speed will fill your sends with generic junk if you let it.
The difference is how you use it.
Rather watch than read? Here is the video version:
Where AI Actually Helps
AI is one tool in the kit, not the whole belt. Point it at the right jobs and it earns its keep fast.
The clearest win is hero images and background visuals.
ChatGPT Image 2 turns out a production-ready hero shot that looks professionally photographed. In minutes. That used to mean a brief, a designer, and two rounds of revisions.
The second win is test velocity.
We generate 4 to 9 hero variations from a single prompt and split test the top 2 or 3 per send. That kind of creative testing used to belong to in-house teams at brands doing $100M+ a year. Not anymore.
My team ships hundreds of these emails a month, and last year that work added a combined $20 million in email and SMS revenue for our clients. The speed only matters because the same volume gives you a lot of shots to test.
Where AI Hurts
The trap is asking AI to do the parts it cannot do yet.
It will never tell you no. It just hands back something that looks fine and is quietly off-brand.
We do not generate full emails for real client work. The tool is not there yet. A high-performing email needs strategy, structure, copy, testing, and brand alignment, and AI has none of that judgment.
Point it at a whole layout and you get slop. Right colors, wrong feel, no taste. It reads generic the second it lands in the inbox.
It will confidently hand you an off-brand hero that clashes with your product photography and your voice. A human still has to look at it and say yes or no. That call is the whole job.
One small habit saves a lot of these assets. When a hero uses a PNG logo, outline it with a subtle white glow or border so it survives on a dark background. A logo that reads clean in your generation preview can go invisible the moment the inbox switches to dark mode.
Treat AI as a hero-shot and background tool today. Nothing more. The real email still gets built in Figma with real product photography and real copy.
The Prompt Is The Whole Game
AI is not the problem. Your prompt is.
The quality of your input equals the quality of your output, and most people skip the input entirely. They jump straight to image generation and get mediocre results.
The better move is to have ChatGPT write your prompt first.
Give it the brand site, the product page, the product copy, and hard constraints, then let it build the generation prompt. A useful constraint set: a 2x3 ratio with the product in the bottom 60% so you have room for a headline and CTA up top.
Feed it specifics and it returns something usable. Feed it a vague one-liner and you get the same junk everyone else gets.
- Prompt built from real brand and product inputs
- Used for hero shots and backgrounds only
- Human picks the winner and kills the misses
- Final email built in Figma on brand styles
- Speeds a cycle that already has strategy behind it
- One lazy prompt, first result shipped
- Asked to design the entire email
- No human eye, no brand check
- Generic layout that reads AI-made
- Speed with nothing thought through behind it
How The Cycle Collapsed
Here is the same campaign, before and after. The strategy work did not disappear. The waiting did.
Here is what this looks like in practice.
A campaign that used to run 2 to 5 days now ships in under 2 hours end to end.
| Step | Old way | AI-assisted way |
|---|---|---|
| Concept | Brief the designer, wait | Lock offer and angle, 15 min |
| Hero visual | First round, then revisions | Generate 4 to 9 variations, 10 min |
| Design | Second round, approve, export | Drop into Figma, 20 min |
| Build | Hand off, build in Klaviyo | Build in Klaviyo, QA, 1 hr |
| Total | 2 to 5 days | Under 2 hours |
Keep The Brand Intact
Speed is worthless if every send drifts.
The guardrail is your Figma system. Load brand colors, fonts, and spacing as styles, then AI heroes drop into a frame that is already on brand. The generated image is one layer inside a controlled design, not the whole thing.
Run every AI asset past the same question you would ask any designer: does this look like us?
If a hero clashes with your real product photography or your voice, it goes in the trash no matter how fast it came out. The tool gives you options. Your standards decide which one ships.
Two checks catch most of the drift.
Does it hold up in dark mode. More people read in dark mode than ever, and most emails look broken in it. AI loves to hand you a hero on a near-white background that disappears the second Gmail flips it dark. Test every send in dark mode before it goes out. I use the Dark Reader Chrome extension for this. If a logo or timer vanishes, the asset is not done.
Does it protect the one CTA. A fast AI hero tempts you to cram in more, another offer, a loyalty pitch, a follow-us line. Do not. Give the reader ONE thing to click. When people see five buttons they click none of them. People skim your emails on their phone in a few seconds. The single-CTA first fold is what makes that skim convert.
Common Mistakes
- Asking AI to design the whole email. Use it for hero shots and backgrounds. Build the real email in Figma with real assets.
- Skipping the prompt work. Have ChatGPT write your prompt from real brand inputs first. Vague input equals generic output.
- Shipping the first result. Generate several variations and pick the strongest. The first render is rarely the best one.
- No human eye on the output. AI has no taste. Someone on the team approves or kills every asset against the brand.
- Letting speed break consistency. Anchor AI heroes inside your Figma brand styles so faster sends stay on brand.
- Ignoring product photography. For a launch or sale, real product shots sell. AI backdrops support them. They do not replace them.
- Skipping the dark-mode check. Test every send in dark mode before it ships. A near-white AI hero can vanish in a dark inbox and take your logo with it.
- Crowding the first fold. One offer, one CTA. Five buttons gets you zero clicks. Keep the AI hero, headline, and single button in the first fold.
Get Expert Help
Our team runs this AI-assisted workflow every day, shipping fast, on-brand campaigns for DTC brands without the generic slop. We build custom email and SMS engines that add 10 to 35% to monthly revenue in 90 days or less. If you want the speed of AI with the judgment and brand control that make it actually convert, we can help.
Here is where to start.
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