GPT-6.1 Terra Pro vs Muse Wonder
GPT-6.1 Terra Pro took 6 min 58 s and $0.39 at list price, Muse Wonder took 6 min 56 s and $0.93 at list price. Both took about as long, and Muse Wonder cost 2.4× as much.
GPT-6.1 Terra Pro
OpenAI · $5.00/M out
Muse Wonder
Meta · $20.00/M out · 682 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. 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 Rotterdam where three of us spend our days bringing vintage synthesizers back to life. We repair and restore instruments from the 1960s, 70s, and 80s — Minimoogs with drifting oscillators, Junos with silent choruses, Prophet-5s that have not powered on in decades — tracing faults board by board, replacing tired components, and calibrating each machine until it sounds musical again. We believe these instruments were built to be played, not preserved behind glass, so we work carefully and reversibly wherever possible, documenting every repair and keeping original parts when they can be saved. Musicians, studios, and collectors bring us synths from across Europe, sometimes in flight cases, sometimes in pieces. Whether it needs a full restoration or a single sticky key, we treat it as if it were our own, and we will not send it home until we would happily play it ourselves.
Specs and numbers
| GPT-6.1 Terra Pro | Muse Wonder | |
|---|---|---|
| Maker | OpenAI | Meta |
| Made in | US | US |
| Released | 26 Oct 2026 | 12 Oct 2026 |
| Price in, per M tokens | $1.00 | $4.00 |
| Price out, per M tokens | $5.00 | $20.00 |
| Context | 1,050,000 tokens | 1,048,576 tokens |
| Weights | closed | closed |
| Hacker News points | — | 682 |
| Time for the six prompts | 6 min 58 s | 6 min 56 s |
| List price of the six prompts | $0.39 | $0.93 |
GPT-6.1 Terra Pro was cheaper: $0.55 less at list price, and less on each of the 6 prompts. Both took about as long in total; GPT-6.1 Terra Pro was faster on 4 of the 6 prompts.
In the recording, both Breakout games play.
Rebuild this screen experiment: Muse Wonder's rebuild matched the screenshot at 66%; GPT-6.1 Terra Pro was not in it. Tea Garden experiment: Muse Wonder's game passed 5 of 5 checks; GPT-6.1 Terra Pro was not in it.





