Xing 4.0 vs Step 5 Preview
Xing 4.0 took 25 min 32 s and was free at list price, Step 5 Preview took 7 min 3 s and $0.25 at list price. Xing 4.0 took 3.6× as long.
Xing 4.0
XingChen · free route
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.
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 compact, three-person workshop rooted in the dynamic streets of Rotterdam, born from a shared reverence for analog sound. Our team shares an unwavering dedication to vintage synthesizers, viewing each oscillator, filter, and routing cable as a vital piece of sonic history waiting to be restored. Whether diagnosing a failing voltage regulator or carefully retrofitting obsolete components, we take immense pride in bringing classic instruments back to their full potential. In our studio, repairing isn't just a technical service—it is a shared passion among friends who believe the past deserves to keep playing. We meticulously diagnose and revive legacy synths, ensuring the iconic sounds of yesterday continue shaping today’s electronic music. Bring us your dented, broken machines, and let us help you reconnect them with the rich, unmistakable sounds they were always meant to make. Every patch, every knob, every fleeting tone depends on the work we do here.
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
| Xing 4.0 | Step 5 Preview | |
|---|---|---|
| Maker | XingChen | StepFun |
| Made in | China | China |
| Released | 16 Oct 2026 | 8 Oct 2026 |
| Price in, per M tokens | free route (list $0/M) | $1.00 |
| Price out, per M tokens | free route (list $0/M) | $2.70 |
| Context | 262,144 tokens | 1,048,576 tokens |
| Weights | open | open |
| Hacker News points | — | 155 |
| Time for the five prompts | 25 min 32 s | 7 min 3 s |
| List price of the five prompts | free | $0.25 |
Xing 4.0 was free at list price; Step 5 Preview cost $0.25. Step 5 Preview was faster: 18 min 29 s less in total, and faster on 4 of the 5 prompts.
In the recording, both Breakout games play. Xing 4.0's landing page showed a blank first frame when the still was taken. Xing 4.0 has no logo: doesn’t draw (an SVG file without the SVG namespace, which browsers draw as an empty box).





