Xing 4.0 vs MiMo v2.6 Pro
Xing 4.0 took 25 min 32 s and was free at list price, MiMo v2.6 Pro took 28 min 59 s and $0.097 at list price. MiMo v2.6 Pro took 1.1× as long.
Xing 4.0
XingChen · free route
MiMo v2.6 Pro
Xiaomi · $0.87/M out · 169 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.
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 three-person studio in Rotterdam dedicated to the repair and restoration of vintage synthesizers. We spend our days with soldering irons and oscilloscopes, coaxing life back into instruments that were built to last and mostly did, until they didn't.
Between us we cover decades of combined experience with analog and early digital circuitry, from the classics of Roland, Korg, Moog, and ARP to the odd, wonderful machines that never made it big. We treat every repair with the same care, whether it's a flagship polysynth or a broken drum machine with a devoted following.
Our workshop sits in the west of the city. You're welcome to visit — bring the instrument, bring the story behind it. We like hearing both.
What we don't know we research, and what we can't source we sometimes fabricate. Nothing gets written off before we've tried.
Specs and numbers
| Xing 4.0 | MiMo v2.6 Pro | |
|---|---|---|
| Maker | XingChen | Xiaomi |
| Made in | China | China |
| Released | 16 Oct 2026 | 21 Sep 2026 |
| Price in, per M tokens | free route (list $0/M) | $0.435 |
| Price out, per M tokens | free route (list $0/M) | $0.87 |
| Context | 262,144 tokens | 1,050,000 tokens |
| Weights | open | open |
| Hacker News points | — | 169 |
| Time for the five prompts | 25 min 32 s | 28 min 59 s |
| List price of the five prompts | free | $0.097 |
Xing 4.0 was free at list price; MiMo v2.6 Pro cost $0.097. Xing 4.0 was faster: 3 min 27 s less in total, and faster on 3 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).