Gemini 3.8 Flash vs GLM 5.3 Flash
Gemini 3.8 Flash took 8 min 33 s and $0.32 at list price, GLM 5.3 Flash took 59 min 10 s and $0.037 at list price. GLM 5.3 Flash took 6.9× as long, and Gemini 3.8 Flash cost 8.6× as much.
Gemini 3.8 Flash
Google · $4.13/M out · 1,293 HN pts
GLM 5.3 Flash
Z.ai · $0.148/M out · 1,329 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.
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.
Tucked away in Rotterdam, Patchbay is a three-person repair studio dedicated to the preservation and revival of vintage synthesizers. We believe that classic instruments are living machines rather than museum relics—tools built to inspire, create, and be played loud. Between the three of us, we combine decades of experience in electronics engineering, sound design, and meticulous craftsmanship. Whether tracking down elusive voice chips for an eighties polyphonic giant, rebuilding power supplies, or recalibrating the drift on a cantankerous monophonic circuit from the seventies, we treat every piece of gear with obsessive attention to detail. Our workbench is built on a deep respect for historical engineering and a refusal to cut corners. For musicians, producers, and collectors across the Netherlands and beyond, Patchbay is where forgotten circuits find their current again, keeping the tactile soul of analog synthesis alive and resonant.
Patchbay began the way most repair shops do: with a broken synth, a stubborn owner, and a soldering iron that refused to stay idle. We're three people—Joris, Marit, and Tomas—working out of a small workshop on the back streets of Rotterdam-Noord, surrounded by oscilloscopes, spare parts, and instruments that sometimes arrive in worse condition than their owners admit.
Between us, we've spent decades repairing and restoring vintage synthesizers: Rolands, Moogs, Korgs, Yamahas, and machines whose manuals were never written in the first place. We don't sell anything. We fix things. That focus keeps us honest and keeps the work slow, careful, and done properly.
We believe old instruments deserve to keep making music, not gather dust in attics or fetch prices only collectors can pay. Whether it's a cracked keybed, a dying power supply, or a voice that's gone quiet, we'd like to help bring it back.
Specs and numbers
| Gemini 3.8 Flash | GLM 5.3 Flash | |
|---|---|---|
| Maker | Z.ai | |
| Made in | US | China |
| Released | 2 Sep 2026 | 26 Aug 2026 |
| Price in, per M tokens | $0.825 | $0.016 |
| Price out, per M tokens | $4.13 | $0.148 |
| Context | 1,048,576 tokens | 1,048,576 tokens |
| Weights | closed | open |
| Hacker News points | 1,293 | 1,329 |
| Time for the six prompts | 8 min 33 s | 59 min 10 s |
| List price of the six prompts | $0.32 | $0.037 |
GLM 5.3 Flash was cheaper: $0.29 less at list price, and less on each of the 6 prompts. Gemini 3.8 Flash was faster: 50 min 37 s less in total, and faster on 5 of the 6 prompts.
In the recording, both Breakout games play.





