To Give Away 100 Pieces of Clothing, We Hand-Built a Website with Moonshot AI
First come, first served
The headline first: Monolith is giving away merch.
Hoodies and T-shirts, your choice — free, first come, first served.
After Kimi K3 launched, we kept looking for a real-world task to test what it can do beyond benchmarks.
So this giveaway works a little differently — you claim yours on a website. And that website, from the front-end pages and visual design to the redemption codes and inventory system on the back end, was built conversation by conversation with Kimi K3.
We're on the Allegretto plan
Why K3?
Kimi K3 is a Mixture of Experts (MoE) model from Moonshot AI, with 2.8 trillion total parameters, native support for visual input and a 1-million-token context window, and fully open weights.
As Moonshot AI's first-round investor, we've watched Kimi evolve for more than three years. We've published benchmark roundups before, but benchmarks can only tell you whether a model "can" do something — not whether it can see a task through, correctly, in the real world.
So we ran a small experiment: give K3 a task that has to go live, serve real users, and handle real data. And give everyone some free merch while we're at it.
What it looks like
As anyone who follows us knows, Monolith is a VC that loves making merch. In the past, though, getting it was mostly luck: friends who dropped by the office for a chat might walk out with a piece, and everyone else was out of luck.
This time, we have a proper online channel.
A preview of the Monolith Collection merch site
The claiming flow is simple: enter your phone number, get a personal redemption code (the same number always maps to the same code, so you can recover it if you forget); pick a product, pick a size (S–3XL), fill in your address, submit.
The system handles the rest: automatic inventory deduction, order generation, 100 unique redemption codes, batch processing, tracking numbers, data export — the back end has it all, running on Cloudflare Functions and D1.
For the visuals, we had K3 reference ALO, Jil Sander, and SKIMS, but with constraints: the clothing color can change but the cut cannot; the logo color can change but its shape cannot; the brand's blue gradient square must be preserved.
The final campaign was generated via localized edits on real product photos, and it reached a directly usable level within two rounds.
On the left is an actual photo of our T-shirt; we used it to generate the rendering on the right
Some fun facts:
Visuals were the most iterated part of the entire project. Of the 50-plus rounds of conversation, more than 20 were about visuals.
On the left is the reference we provided; on the right is the generated campaign
An agent doesn't come with brand aesthetics built in. Its consistent output comes from humans translating implicit aesthetic preferences into an explicit system of constraints.
The logo position kept drifting; precisely controlling this variable required repeated constraints
We started with phrases like "more premium" and "more like a fashion brand," but quickly found that abstract instructions like these have almost no stable execution value.
What actually works is providing reference images and breaking aesthetic judgment down into constraints that can be checked one by one.
How to claim yours
1. Open the Monolith Collection merch site —
https://monolith-collection.pages.dev
Click "Read More" to enter the site, or copy the link above into your browser. A desktop visit is recommended for a better experience.
2. Click "Claim Code" and enter your phone number to get your personal redemption code;
3. Choose your product, color, and size, then enter your redemption code (you can copy and paste it directly from the previous step);
4. Fill in your name, phone number, and shipping address, then submit;
5. Save your redemption confirmation and wait for the batch shipment.
Merch will go into production after the redemption period ends and is expected to ship within 15 business days. The site shows remaining inventory in real time — 100 codes total, and once they're gone, they're gone.
Finally, come claim your merch — and once it arrives, remember to post a "buyer review": rate the clothes, and while you're at it, rate the website K3 built! (We'll randomly pick a few people from the comments and send out small gifts.)
