GPT-6.1 Terra vs Pareto 26.9
GPT-6.1 Terra took 5 min 29 s and $0.15 at list price, Pareto 26.9 took 10 min 32 s and $0.34 at list price. Pareto 26.9 took 1.9× as long and cost 2.3× as much.
GPT-6.1 Terra
OpenAI · $5.00/M out · 706 HN pts
Pareto 26.9
Unbiased · $7.50/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.
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.
Patchbay is a small workshop in the heart of Rotterdam, where three people spend their days elbow-deep in the guts of vintage synthesizers. We fix the machines that made the sounds you grew up with—the ones that shaped entire genres and then got left in basements when the tech moved on. But we're not a museum. Our benches are covered in solder, schematics, and the occasional broken key that's been there for two weeks longer than we'd like to admit.
We started this studio because we got tired of seeing classic gear being stripped for parts, or worse, turned into Instagram decor. These instruments deserve better. They were built to make noise, and we want to keep them doing exactly that.
Between the three of us, we've fixed everything from a 1960s Buchla to a beat-up Juno that fell down a flight of stairs. If you've got a synth that's gone quiet, bring it in. We'll bring it back.
Specs and numbers
| GPT-6.1 Terra | Pareto 26.9 | |
|---|---|---|
| Maker | OpenAI | Unbiased |
| Made in | US | — |
| Released | 26 Oct 2026 | 13 Oct 2026 |
| Price in, per M tokens | $1.00 | $2.50 |
| Price out, per M tokens | $5.00 | $7.50 |
| Context | 1,050,000 tokens | 262,144 tokens |
| Weights | closed | closed |
| Hacker News points | 706 | — |
| Time for the six prompts | 5 min 29 s | 10 min 32 s |
| List price of the six prompts | $0.15 | $0.34 |
GPT-6.1 Terra was cheaper: $0.19 less at list price, and less on each of the 6 prompts. GPT-6.1 Terra was faster: 5 min 4 s less in total, and faster on each of the 6 prompts.
In the recording, both Breakout games play. Pareto 26.9's landing page was cut off at the output limit (12,000 tokens).
Rebuild this screen experiment: GPT-6.1 Terra's rebuild matched the screenshot at 95%; Pareto 26.9 was not in it. Tea Garden experiment: GPT-6.1 Terra's game passed 5 of 5 checks; Pareto 26.9 was not in it.