Xing 4.0 vs GLM 5.3
Xing 4.0 took 25 min 32 s and was free at list price, GLM 5.3 took 15 min 54 s and $0.25 at list price. Xing 4.0 took 1.6× as long.
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 in Rotterdam where vintage synthesizers come back to life. Whatever lands on our bench — a battered Minimoog, a Juno with dead keys, an ARP silent since the eighties — gets the same treatment: careful diagnosis, honest advice, and repairs done right.
We started Patchbay because we believe a good synthesizer shouldn't die of old age. These machines are more than circuits and sliders — they're the sound of records you grew up with, and the reason some of us got into music in the first place. Every one we fix goes back out into the world ready to make more.
Between us we handle everything from recapping and calibration to keybed work and the hunt for parts nobody has made in decades. It's slow, meticulous work, and we like it that way. If something in your collection hums, crackles, or refuses to turn on, bring it in — we'll see what we can do.
Specs and numbers
| Xing 4.0 | GLM 5.3 | |
|---|---|---|
| Maker | XingChen | Z.ai |
| Made in | China | China |
| Released | 16 Oct 2026 | 18 Aug 2026 |
| Price in, per M tokens | free route (list $0/M) | $0.07 |
| Price out, per M tokens | free route (list $0/M) | $1.40 |
| Context | 262,144 tokens | 1,048,576 tokens |
| Weights | open | open |
| Hacker News points | — | 3,306 |
| Time for the five prompts | 25 min 32 s | 15 min 54 s |
| List price of the five prompts | free | $0.25 |
Xing 4.0 was free at list price; GLM 5.3 cost $0.25. GLM 5.3 was faster: 9 min 38 s less in total, and faster on 3 of the 5 prompts.
In the recording, Xing 4.0's Breakout game plays; GLM 5.3's stopped painting. Xing 4.0's landing page showed a blank first frame when the still was taken. GLM 5.3's Breakout game 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).
Tea Garden experiment: GLM 5.3's game passed 1 of 5 checks; Xing 4.0 was not in it.