Xing 4.0 vs Pareto 26.9
Xing 4.0 took 25 min 32 s and was free at list price, Pareto 26.9 took 9 min 17 s and $0.32 at list price. Xing 4.0 took 2.7× as long.
Xing 4.0
XingChen · free route
Pareto 26.9
Unbiased · $7.50/M out
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.
Blank first frame. Press Run.
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 small workshop in the heart of Rotterdam, where three people spend their days elbow-deep in the guts of vintage synthesizers. We fix the machines that made the sounds you grew up with—the ones that shaped entire genres and then got left in basements when the tech moved on. But we're not a museum. Our benches are covered in solder, schematics, and the occasional broken key that's been there for two weeks longer than we'd like to admit.
We started this studio because we got tired of seeing classic gear being stripped for parts, or worse, turned into Instagram decor. These instruments deserve better. They were built to make noise, and we want to keep them doing exactly that.
Between the three of us, we've fixed everything from a 1960s Buchla to a beat-up Juno that fell down a flight of stairs. If you've got a synth that's gone quiet, bring it in. We'll bring it back.
Specs and numbers
| Xing 4.0 | Pareto 26.9 | |
|---|---|---|
| Maker | XingChen | Unbiased |
| Made in | China | — |
| Released | 16 Oct 2026 | 13 Oct 2026 |
| Price in, per M tokens | free route (list $0/M) | $2.50 |
| Price out, per M tokens | free route (list $0/M) | $7.50 |
| Context | 262,144 tokens | 262,144 tokens |
| Weights | open | closed |
| Hacker News points | — | — |
| Time for the five prompts | 25 min 32 s | 9 min 17 s |
| List price of the five prompts | free | $0.32 |
Xing 4.0 was free at list price; Pareto 26.9 cost $0.32. Pareto 26.9 was faster: 16 min 15 s less in total, and faster on each 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. Pareto 26.9's landing page was cut off at the output limit (12,000 tokens). Xing 4.0 has no logo: doesn’t draw (an SVG file without the SVG namespace, which browsers draw as an empty box).