• Updated 13 Nov, 13:06 UTC
  • Next run 14 Nov, 05:17 UTCNext 14 Nov 05:17
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Gemini 4 Hydrogen vs GLM 5.3 FlashX Legal

6 prompts both ran·Specs and numbers·Change models

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

Gemini 4 Hydrogen's SVG for the "Pelican riding a bicycle" prompt

Gemini 4 Hydrogen

58 s$0.0668.8k tokensAPI
GLM 5.3 FlashX Legal's SVG for the "Pelican riding a bicycle" prompt

GLM 5.3 FlashX Legal

6 min 19 s$0.05947k tokensAPI

Watch

Draw a mechanical wristwatch that shows the current local time, with a sweeping seconds hand and a date window. Make it look expensive.

Still of Gemini 4 Hydrogen's page for the "Wristwatch that shows the current time" prompt

Gemini 4 Hydrogen

80 s$0.09413k tokensAPI
Still of GLM 5.3 FlashX Legal's page for the "Wristwatch that shows the current time" prompt

GLM 5.3 FlashX Legal

9 min 36 s$0.08467k tokensAPI

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.

Still of Gemini 4 Hydrogen's page for the "Landing page for a cargo bike workshop" prompt

Gemini 4 Hydrogen

3 min 13 s$0.2331k tokensAPI
Still of GLM 5.3 FlashX Legal's page for the "Landing page for a cargo bike workshop" prompt

GLM 5.3 FlashX Legal

12 min 13 s$0.1292k tokensAPI

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.

Still of Gemini 4 Hydrogen's page for the "Playable Breakout" prompt

Gemini 4 Hydrogen

1 min 36 s$0.1215k tokensAPI
Still of GLM 5.3 FlashX Legal's page for the "Playable Breakout" prompt

GLM 5.3 FlashX Legal

11 min 20 s$0.1184k tokensAPI

Design a logo for Night Heron, an independent bookshop that only opens after dark.

Gemini 4 Hydrogen's SVG for the "Bookshop logo" prompt

Gemini 4 Hydrogen

73 s$0.07910k tokensAPI
GLM 5.3 FlashX Legal's SVG for the "Bookshop logo" prompt

GLM 5.3 FlashX Legal

5 min 42 s$0.05141k tokensAPI

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.

Gemini 4 Hydrogen

20 s$0.0202.7k tokensAPI

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.

GLM 5.3 FlashX Legal

3 s<$0.001238 tokensAPI

Specs and numbers

Gemini 4 HydrogenGLM 5.3 FlashX Legal
MakerGoogleZ.ai
Made inUSChina
Released12 Nov 20262 Nov 2026
Price in, per M tokens$1.50$0.37
Price out, per M tokens$7.50$1.25
Context1,048,576 tokens1,048,576 tokens
Weightsclosedclosed
Hacker News points1,026—
Time for the six prompts8 min 39 s45 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.

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