Gemini 4 Hydrogen vs GPT-6.1 Terra Pro
Gemini 4 Hydrogen took 8 min 39 s and $0.60 at list price, GPT-6.1 Terra Pro took 6 min 58 s and $0.39 at list price. Gemini 4 Hydrogen took 1.2× as long and cost 1.6× as much.
Gemini 4 Hydrogen
Google · $7.50/M out · 1,026 HN pts
GPT-6.1 Terra Pro
OpenAI · $5.00/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 dedicated to repairing vintage synthesizers. We work on the instruments that have shaped decades of music, from well-loved studio staples to curious machines that have spent years in storage.
Old synthesizers develop problems in their own ways. A key stops responding, a filter drifts, a power supply gives out. We take the time to trace the fault, understand the instrument and make a repair that respects how it was built. Wherever possible, we preserve original components; when a part needs replacing, we choose with care.
We know these instruments are more than collections of circuits. They carry sounds, habits and memories, and each one has a story before it reaches our bench. Whether you rely on yours every day or are hoping to hear it again after a long silence, our aim is to help you get back to making music.
Specs and numbers
| Gemini 4 Hydrogen | GPT-6.1 Terra Pro | |
|---|---|---|
| Maker | OpenAI | |
| Made in | US | US |
| Released | 12 Nov 2026 | 26 Oct 2026 |
| Price in, per M tokens | $1.50 | $1.00 |
| Price out, per M tokens | $7.50 | $5.00 |
| Context | 1,048,576 tokens | 1,050,000 tokens |
| Weights | closed | closed |
| Hacker News points | 1,026 | — |
| Time for the six prompts | 8 min 39 s | 6 min 58 s |
| List price of the six prompts | $0.60 | $0.39 |
GPT-6.1 Terra Pro was cheaper: $0.22 less at list price, and less on each of the 6 prompts. GPT-6.1 Terra Pro was faster: 1 min 41 s less in total, and faster on 5 of the 6 prompts.
In the recording, both Breakout games play.





