Muse Ember vs GPT-6.1 Terra
Muse Ember took 3 min 48 s and $0.065 at list price, GPT-6.1 Terra took 5 min 29 s and $0.15 at list price. GPT-6.1 Terra took 1.4× as long and cost 2.3× as much.
Muse Ember
Meta · $0.50/M out · 346 HN pts
GPT-6.1 Terra
OpenAI · $5.00/M out · 724 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 repairing vintage synthesizers. We work carefully, one instrument at a time, because old machines deserve patience. Our bench is crowded with test leads, spare knobs, tired capacitors, and service manuals held together by tape. Every repair begins with listening. We power up the synth, play a few notes, and trace the fault by ear before opening the case. Perhaps the filter drifts as it warms. Maybe a voice cuts out, or the envelope behaves strangely. We clean contacts, replace components only when necessary, and keep original parts wherever possible. We believe repair is a form of preservation. These instruments were built to be played for decades, not replaced when something small fails. Rotterdam has a long history of making and fixing things, and we are proud to continue that tradition. Bring us your beloved keyboard, and we will see what can be saved.
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.
Specs and numbers
| Muse Ember | GPT-6.1 Terra | |
|---|---|---|
| Maker | Meta | OpenAI |
| Made in | US | US |
| Released | 9 Nov 2026 | 26 Oct 2026 |
| Price in, per M tokens | $0.10 | $1.00 |
| Price out, per M tokens | $0.50 | $5.00 |
| Context | 1,048,576 tokens | 1,050,000 tokens |
| Weights | closed | closed |
| Hacker News points | 346 | 724 |
| Time for the six prompts | 3 min 48 s | 5 min 29 s |
| List price of the six prompts | $0.065 | $0.15 |
Muse Ember was cheaper: $0.082 less at list price, and less on 5 of the 6 prompts. Muse Ember was faster: 1 min 41 s less in total, and faster on 3 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%; Muse Ember was not in it. Tea Garden experiment: GPT-6.1 Terra's game passed 5 of 5 checks; Muse Ember was not in it.