Kimi K3.1 Pro vs GPT-6 Luna
Kimi K3.1 Pro took 32 min 17 s and $1.27 at list price, GPT-6 Luna took 4 min 43 s and $0.017 at list price. Kimi K3.1 Pro took 6.9× as long and cost 76× as much.
Kimi K3.1 Pro
Moonshot AI · $10.00/M out · 1,168 HN pts
GPT-6 Luna
OpenAI · $0.50/M out · 24 HN pts
Pelican
Generate an SVG of a pelican riding a bicycle
Watch
Draw a mechanical wristwatch that shows the current local time, with a sweeping seconds hand and a date window. Make it look expensive.
Landing
Build the landing page for Lumen Cycles, a Copenhagen workshop that builds custom cargo bikes to order. Make it look like a real brand you would trust with 4,000 euros.
Breakout
Make a Breakout game I can play right now with the keyboard or the mouse. Give it several levels, a score and some juice.
Logo
Design a logo for Night Heron, an independent bookshop that only opens after dark.
About
Write the opening of the About us page for Patchbay, a three-person studio in Rotterdam that repairs vintage synthesizers. About 150 words.
Patchbay is a three-person studio in Rotterdam devoted to keeping vintage synthesizers alive, playable, and full of character. We work on instruments that have spent decades in studios, bedrooms, and tour cases, and we believe each one deserves more than a quick fix. From drifting oscillators and noisy sliders to tired keybeds and mysterious faults, we take the time to listen, diagnose, and repair with care.
Our approach combines patient troubleshooting, period-correct components where possible, and a deep respect for the original sound. We do not believe in erasing an instrument’s history; we preserve the quirks that make it worth loving. Whether your synthesizer needs a full overhaul or a little help getting back on stage, you will always know who is working on it and why. Patchbay exists for the joy of switching on an old machine and hearing it come back to life.
Patchbay is a three-person studio in Rotterdam devoted to repairing vintage synthesizers. We work with instruments that have been played, carried, opened up, and passed from one owner to the next. Each arrives with its own history and its own set of quirks, so we begin by listening carefully and tracing the problem before reaching for a fix.
Our work ranges from straightforward maintenance to deeper electronic repairs. We clean, test, diagnose, and restore with the aim of making a synthesizer reliable again while respecting the design that gives it its voice. When a repair calls for a replacement part, we look for a solution that fits the instrument rather than treating it as disposable.
Patchbay is run by three people who share a curiosity about how these machines work and a respect for the sounds they make. We believe a well-cared-for synthesizer has plenty more music in it, and we’re here to help it find its way back into someone’s hands.
Specs and numbers
| Kimi K3.1 Pro | GPT-6 Luna | |
|---|---|---|
| Maker | Moonshot AI | OpenAI |
| Made in | China | US |
| Released | 23 Oct 2026 | 22 Sep 2026 |
| Price in, per M tokens | $2.00 | $0.10 |
| Price out, per M tokens | $10.00 | $0.50 |
| Context | 1,048,576 tokens | 1,050,000 tokens |
| Weights | closed | closed |
| Hacker News points | 1,168 | 24 |
| Time for the six prompts | 32 min 17 s | 4 min 43 s |
| List price of the six prompts | $1.27 | $0.017 |
GPT-6 Luna was cheaper: $1.25 less at list price, and less on each of the 6 prompts. GPT-6 Luna was faster: 27 min 34 s less in total, and faster on each of the 6 prompts.
In the recording, both Breakout games play.
Rebuild this screen experiment: Kimi K3.1 Pro's rebuild matched the screenshot at 87%; GPT-6 Luna was not in it. Tea Garden experiment: Kimi K3.1 Pro's game passed 5 of 5 checks; GPT-6 Luna was not in it.