GPT-6.1 Terra vs Step 5 Preview
GPT-6.1 Terra took 5 min 29 s and $0.15 at list price, Step 5 Preview took 10 min 44 s and $0.33 at list price. Step 5 Preview took 2.0× as long and cost 2.2× as much.
GPT-6.1 Terra
OpenAI · $5.00/M out · 706 HN pts
Step 5 Preview
StepFun · $2.70/M out · 155 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.
Patchbay is a three-person workshop based in Rotterdam, dedicated to keeping vintage synthesizers alive and playable. We are technicians, musicians, and obsessive tinkerers who believe that classic analog instruments deserve better than silence. From temperamental Jupiter-8s to worn-out ARP Odysseys, we restore, repair, and maintain the machines that shaped the sound of modern music. Every repair starts with listening—both to the instrument and to the person who plays it. Whether you are chasing a rare fault, need a full calibration, or simply want your old synth to feel new again, our bench is open. We understand that no two synthesizers arrive with the same story, and we treat each circuit, slider, and key with the care its history deserves. At Patchbay, we are here to make sure the sounds of tomorrow are built on those that came before.
Specs and numbers
| GPT-6.1 Terra | Step 5 Preview | |
|---|---|---|
| Maker | OpenAI | StepFun |
| Made in | US | China |
| Released | 26 Oct 2026 | 8 Oct 2026 |
| Price in, per M tokens | $1.00 | $1.00 |
| Price out, per M tokens | $5.00 | $2.70 |
| Context | 1,050,000 tokens | 1,048,576 tokens |
| Weights | closed | open |
| Hacker News points | 706 | 155 |
| Time for the six prompts | 5 min 29 s | 10 min 44 s |
| List price of the six prompts | $0.15 | $0.33 |
GPT-6.1 Terra was cheaper: $0.18 less at list price, and less on 5 of the 6 prompts. GPT-6.1 Terra was faster: 5 min 15 s less in total, and faster on 5 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%; Step 5 Preview was not in it. Tea Garden experiment: GPT-6.1 Terra's game passed 5 of 5 checks; Step 5 Preview was not in it.