Flint vs GLM 5.3
Flint took 10 min 5 s and was free at list price, GLM 5.3 took 22 min 22 s and $0.34 at list price. GLM 5.3 took 2.2× 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.
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 began in a small, cluttered workshop in Rotterdam, where solder smoke and old capacitors seem to belong together. We are a three-person studio, which means every synthesizer that comes through our door is handled by one of the same people who started the project. No call center, no hand-off to strangers. We repair vintage synthesizers: the dusty analog beasts, the rare oddities, the ones with missing knobs and mysterious tuning drift. Our work is part electronics, part archaeology, part stubborn love. We listen to the hum before we open the case, and we believe most vintage synths are not dead, just waiting for someone to pay attention. In a city known for moving quickly, we prefer taking our time. Patchbay exists to keep old voices alive, one oscillator, filter, and power supply at a time. If you have a synth that sings, whispers, or hums through the decades, we would be glad to meet it.
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
| Flint | GLM 5.3 | |
|---|---|---|
| Maker | Recursive | Z.ai |
| Made in | US | China |
| Released | 21 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 | 36 | 3,306 |
| Time for the six prompts | 10 min 5 s | 22 min 22 s |
| List price of the six prompts | free | $0.34 |
Flint was free at list price; GLM 5.3 cost $0.34. Flint was faster: 12 min 17 s less in total, and faster on 4 of the 6 prompts.
In the recording, Flint's Breakout game loads but doesn't start; GLM 5.3's stopped painting. GLM 5.3's Breakout game showed a blank first frame when the still was taken.
Tea Garden experiment: Flint's game passed 5 of 5 checks, GLM 5.3's 1 of 5.





