Kimi K3.1 Pro vs Gemini 3.8 Flash
Kimi K3.1 Pro took 32 min 17 s and $1.27 at list price, Gemini 3.8 Flash took 8 min 33 s and $0.32 at list price. Kimi K3.1 Pro took 3.8× as long and cost 3.9× as much.
Kimi K3.1 Pro
Moonshot AI · $10.00/M out · 1,168 HN pts
Gemini 3.8 Flash
Google · $4.13/M out · 1,293 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.
Tucked away in Rotterdam, Patchbay is a three-person repair studio dedicated to the preservation and revival of vintage synthesizers. We believe that classic instruments are living machines rather than museum relics—tools built to inspire, create, and be played loud. Between the three of us, we combine decades of experience in electronics engineering, sound design, and meticulous craftsmanship. Whether tracking down elusive voice chips for an eighties polyphonic giant, rebuilding power supplies, or recalibrating the drift on a cantankerous monophonic circuit from the seventies, we treat every piece of gear with obsessive attention to detail. Our workbench is built on a deep respect for historical engineering and a refusal to cut corners. For musicians, producers, and collectors across the Netherlands and beyond, Patchbay is where forgotten circuits find their current again, keeping the tactile soul of analog synthesis alive and resonant.
Specs and numbers
| Kimi K3.1 Pro | Gemini 3.8 Flash | |
|---|---|---|
| Maker | Moonshot AI | |
| Made in | China | US |
| Released | 23 Oct 2026 | 2 Sep 2026 |
| Price in, per M tokens | $2.00 | $0.825 |
| Price out, per M tokens | $10.00 | $4.13 |
| Context | 1,048,576 tokens | 1,048,576 tokens |
| Weights | closed | closed |
| Hacker News points | 1,168 | 1,293 |
| Time for the six prompts | 32 min 17 s | 8 min 33 s |
| List price of the six prompts | $1.27 | $0.32 |
Gemini 3.8 Flash was cheaper: $0.94 less at list price, and less on each of the 6 prompts. Gemini 3.8 Flash was faster: 23 min 44 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%; Gemini 3.8 Flash was not in it. Tea Garden experiment: Kimi K3.1 Pro's game passed 5 of 5 checks; Gemini 3.8 Flash was not in it.





