Gemini 4 Hydrogen vs GLM 5.3 FlashX Legal
Gemini 4 Hydrogen took 8 min 39 s and $0.60 at list price, GLM 5.3 FlashX Legal took 45 min 14 s and $0.42 at list price. GLM 5.3 FlashX Legal took 5.2× as long, and Gemini 4 Hydrogen cost 1.5× as much.
Gemini 4 Hydrogen
Google · $7.50/M out · 1,026 HN pts
GLM 5.3 FlashX Legal
Z.ai · $1.25/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.
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.
In a quiet corner of Rotterdam, surrounded by the scent of warm solder and the hum of calibrated oscillators, Patchbay brings classic electronic instruments back to life. We are a three-person studio united by an obsession with vintage synthesizers and the belief that these machines belong under musicians' hands, not gathering dust in storage.
Every synthesizer that crosses our workbench carries decades of history, along with brittle capacitors, worn contacts, and drifting tuning. Whether we are facing a temperamental analog polysynth from the seventies or an early digital classic, we approach each repair with patience and precision. We do not believe in quick fixes. Instead, we study original schematics, source elusive components, and meticulously restore every circuit, keybed, and fader until the instrument plays as reliably as the day it was built. Patchbay exists to keep these irreplaceable voices singing for the next generation of artists.
Patchbay is a three-person studio in Rotterdam devoted to the repair and restoration of vintage synthesizers. We work on the machines that shaped the sound of the last fifty years — Roland, Moog, Yamaha, Korg, EMS, and the rest — from the rare and legendary to the well-loved and well-worn.
We started the studio because these instruments matter. They were built to be repaired, with discrete components, schematics, and construction that reward patience and care. Somewhere along the way, that way of making things fell out of fashion. We think it's worth keeping alive.
Every synthesizer that comes through our door is treated the same way: carefully diagnosed, honestly assessed, and repaired with respect for its original character. No unnecessary modifications, no shortcuts that compromise the instrument. Whether it's a failed voice chip, a dead key, or years of dust and neglect, our job is to put the machine back in the hands of the people who play it.
Specs and numbers
| Gemini 4 Hydrogen | GLM 5.3 FlashX Legal | |
|---|---|---|
| Maker | Z.ai | |
| Made in | US | China |
| Released | 12 Nov 2026 | 2 Nov 2026 |
| Price in, per M tokens | $1.50 | $0.37 |
| Price out, per M tokens | $7.50 | $1.25 |
| Context | 1,048,576 tokens | 1,048,576 tokens |
| Weights | closed | closed |
| Hacker News points | 1,026 | — |
| Time for the six prompts | 8 min 39 s | 45 min 14 s |
| List price of the six prompts | $0.60 | $0.42 |
GLM 5.3 FlashX Legal was cheaper: $0.19 less at list price, and less on each of the 6 prompts. Gemini 4 Hydrogen was faster: 36 min 34 s less in total, and faster on 5 of the 6 prompts.
In the recording, both Breakout games play.





