Kimi K3.1 Pro vs Step 5 Preview
Kimi K3.1 Pro took 32 min 17 s and $1.27 at list price, Step 5 Preview took 10 min 44 s and $0.33 at list price. Kimi K3.1 Pro took 3.0× as long and cost 3.9× as much.
Kimi K3.1 Pro
Moonshot AI · $10.00/M out · 1,168 HN pts
Step 5 Preview
StepFun · $2.70/M out · 155 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 workshop based in Rotterdam, dedicated to keeping vintage synthesizers alive and playable. We are technicians, musicians, and obsessive tinkerers who believe that classic analog instruments deserve better than silence. From temperamental Jupiter-8s to worn-out ARP Odysseys, we restore, repair, and maintain the machines that shaped the sound of modern music. Every repair starts with listening—both to the instrument and to the person who plays it. Whether you are chasing a rare fault, need a full calibration, or simply want your old synth to feel new again, our bench is open. We understand that no two synthesizers arrive with the same story, and we treat each circuit, slider, and key with the care its history deserves. At Patchbay, we are here to make sure the sounds of tomorrow are built on those that came before.
Specs and numbers
| Kimi K3.1 Pro | Step 5 Preview | |
|---|---|---|
| Maker | Moonshot AI | StepFun |
| Made in | China | China |
| Released | 23 Oct 2026 | 8 Oct 2026 |
| Price in, per M tokens | $2.00 | $1.00 |
| Price out, per M tokens | $10.00 | $2.70 |
| Context | 1,048,576 tokens | 1,048,576 tokens |
| Weights | closed | open |
| Hacker News points | 1,168 | 155 |
| Time for the six prompts | 32 min 17 s | 10 min 44 s |
| List price of the six prompts | $1.27 | $0.33 |
Step 5 Preview was cheaper: $0.94 less at list price, and less on each of the 6 prompts. Step 5 Preview was faster: 21 min 33 s less in total, and faster on 5 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%; Step 5 Preview was not in it. Tea Garden experiment: Kimi K3.1 Pro's game passed 5 of 5 checks; Step 5 Preview was not in it.