Step 5 Preview vs GPT-6 Luna
Step 5 Preview took 10 min 44 s and $0.33 at list price, GPT-6 Luna took 4 min 43 s and $0.017 at list price. Step 5 Preview took 2.3× as long and cost 20× as much.
Step 5 Preview
StepFun · $2.70/M out · 155 HN pts
GPT-6 Luna
OpenAI · $0.50/M out · 24 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 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.
Patchbay is a three-person studio in Rotterdam devoted to repairing vintage synthesizers. We work with instruments that have been played, carried, opened up, and passed from one owner to the next. Each arrives with its own history and its own set of quirks, so we begin by listening carefully and tracing the problem before reaching for a fix.
Our work ranges from straightforward maintenance to deeper electronic repairs. We clean, test, diagnose, and restore with the aim of making a synthesizer reliable again while respecting the design that gives it its voice. When a repair calls for a replacement part, we look for a solution that fits the instrument rather than treating it as disposable.
Patchbay is run by three people who share a curiosity about how these machines work and a respect for the sounds they make. We believe a well-cared-for synthesizer has plenty more music in it, and we’re here to help it find its way back into someone’s hands.
Specs and numbers
| Step 5 Preview | GPT-6 Luna | |
|---|---|---|
| Maker | StepFun | OpenAI |
| Made in | China | US |
| Released | 8 Oct 2026 | 22 Sep 2026 |
| Price in, per M tokens | $1.00 | $0.10 |
| Price out, per M tokens | $2.70 | $0.50 |
| Context | 1,048,576 tokens | 1,050,000 tokens |
| Weights | open | closed |
| Hacker News points | 155 | 24 |
| Time for the six prompts | 10 min 44 s | 4 min 43 s |
| List price of the six prompts | $0.33 | $0.017 |
GPT-6 Luna was cheaper: $0.31 less at list price, and less on each of the 6 prompts. GPT-6 Luna was faster: 6 min 1 s less in total, and faster on 4 of the 6 prompts.
In the recording, both Breakout games play.





