GPT-6.1 Terra Pro vs Pareto 26.9
GPT-6.1 Terra Pro took 6 min 58 s and $0.39 at list price, Pareto 26.9 took 10 min 32 s and $0.34 at list price. Pareto 26.9 took 1.5× as long, and GPT-6.1 Terra Pro cost 1.1× as much.
GPT-6.1 Terra Pro
OpenAI · $5.00/M out
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. 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.
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 Pro | 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 | — | — |
| Time for the six prompts | 6 min 58 s | 10 min 32 s |
| List price of the six prompts | $0.39 | $0.34 |
Pareto 26.9 was cheaper: $0.047 less at list price, and less on 5 of the 6 prompts. GPT-6.1 Terra Pro was faster: 3 min 34 s less in total, and faster on 5 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).