GPT-6.1 Terra vs Gemini 4 Argon
GPT-6.1 Terra took 5 min 29 s and $0.15 at list price, Gemini 4 Argon took 13 min 43 s and $0.68 at list price. Gemini 4 Argon took 2.5× as long and cost 4.6× as much.
GPT-6.1 Terra
OpenAI · $5.00/M out · 706 HN pts
Gemini 4 Argon
Google · $10.00/M out · 2,036 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.
Patchbay is a three-person studio in Rotterdam, dedicated to repairing vintage synthesizers and keeping them in use.
Old instruments have a way of becoming familiar: the feel of a key, the response of a filter, the particular sound a circuit makes when it’s working as it should. When something goes wrong, we take the time to understand both the fault and the instrument around it. We work carefully, preserving original parts wherever practical and making repairs with the long term in mind.
Our studio brings together a shared interest in electronics, sound and the machines that connect them. Whether a synthesizer has a stubborn key, a noisy output or has been silent for years, we’re interested in finding a way forward.
We work with musicians, collectors and anyone who wants to hear an old instrument come to life again. If you have a synth that needs attention, we’d be glad to hear about it.
In a quiet industrial building overlooking the Maas, the air smells of warm dust, solder flux, and ozone. This is Patchbay, a three-person workshop in Rotterdam dedicated to keeping the golden age of electronic music alive. We don’t view vintage synthesizers as museum pieces to be locked behind glass. To us, a Roland Jupiter-8 or an ARP Odyssey is a living, breathing instrument meant to be played, gigged, and pushed to its sonic limits.
Between the three of us, we have spent decades deciphering faded schematics, hunting down obsolete transistors, and cleaning decades of club grime from beneath weighted keys. Rotterdam is a city built on raw electronics and relentless rhythms, and we take pride in keeping its hardware running. Whether you bring us a touring workhorse with a dead voice chip or a garage-find modular rig that hasn’t powered on since 1984, we are here to make it sing again.
Specs and numbers
| GPT-6.1 Terra | Gemini 4 Argon | |
|---|---|---|
| Maker | OpenAI | |
| Made in | US | US |
| Released | 26 Oct 2026 | 13 Oct 2026 |
| Price in, per M tokens | $1.00 | $2.00 |
| Price out, per M tokens | $5.00 | $10.00 |
| Context | 1,050,000 tokens | 1,048,576 tokens |
| Weights | closed | closed |
| Hacker News points | 706 | 2,036 |
| Time for the six prompts | 5 min 29 s | 13 min 43 s |
| List price of the six prompts | $0.15 | $0.68 |
GPT-6.1 Terra was cheaper: $0.53 less at list price, and less on each of the 6 prompts. GPT-6.1 Terra was faster: 8 min 14 s less in total, and faster on each of the 6 prompts.
In the recording, both Breakout games play.
Rebuild this screen experiment: GPT-6.1 Terra's rebuild matched the screenshot at 95%, Gemini 4 Argon's 69%. Tea Garden experiment: GPT-6.1 Terra's game passed 5 of 5 checks, Gemini 4 Argon's 5 of 5.