I Gave Claude, Gemini & GPT the Same Landing-Page Brief — Here's What They Built

I gave the exact same one-line request to Claude, Gemini, and GPT: build a landing page for a fictional app. No extra instructions. One shot. Here’s what came back. Which one looks ready to ship? I actually ran them, and compared design, code, and speed. And the short version — there was no single winner. The rules are simple. All three get the exact same prompt, pasted into their own chat. No follow-ups. I judge only the first response. All three on their latest models. Four things I’m looking at: copy, design, how clean the code is, and speed. Here’s the brief. A fictional app called PlantPing. A watering reminder for houseplants: snap a photo, the AI identifies the plant, and tells you the best day to water it. The audience — people in their twenties and thirties who keep killing their plants. Build a landing page with a hero, three features, and a CTA, in a single HTML and CSS file. Let’s go one by one. First, Claude. It took the longest of the three — about eighty-five seconds. It thinks, then writes. And here’s the result. Honestly, it’s the most beautiful of the three. “Your plants can’t text you. So we will.” Confident copy, elegant type, a phone mockup, even little animations — from a one-line request. But look at the code, and there’s a catch: it pulls fonts from Google Fonts. Gorgeous type, but it won’t render the same offline. Something to keep in mind for production. The design is a clear step above. But it’s the slowest, and arguably over-engineered. That’s Claude. Next, Gemini. Generation took about twenty seconds — by far the fastest of the three. Here’s the output. “Stop committing plant murder.” — easily the punchiest headline of the bunch. Clean, centered, three feature cards. No hero mockup, so it’s the simplest layout. And the code is the leanest, just six kilobytes. The catch: it also reaches for a Google Font, so it’s not fully self-contained. Fast and witty, but the plainest of the three. Last, GPT. Generation took about forty seconds — right in the middle. And this one surprised me. A detailed, realistic app mockup right in the hero — a Monstera card with a watering schedule. Strong copy too: “Keep plants alive without becoming a plant person.” And the code was the best of the three for actually using: zero external dependencies, and the most thorough responsive layout. Nothing flashy, but if you’re going to take this and ship it, GPT gave you the cleanest starting point. Line them up on the four axes, and it looks like this. Copy: Claude and Gemini edge ahead. Design: Claude and GPT. Clean, self-contained code: GPT. Speed: Gemini. Three different strengths — and this time, GPT comes closest to an all-rounder. But there’s still no clean sweep. So how you choose comes down to what you care about most. Want the best-looking page, and you’ll fine-tune it? Claude. Want it fast, with a sharp headline? Gemini. Want something you can actually ship and build on? GPT. I’ll keep doing these “I actually tried it” tests. Which one would you pick? Let me know in the comments. And if you want to build something with AI, subscribe and let’s figure it out together.