Hy4 vs GPT-6.1 Sol
Hy4 took 16 min 15 s and $0.15 at list price, GPT-6.1 Sol took 12 min 10 s and $0.37 at list price. Hy4 took 1.3× as long, and GPT-6.1 Sol cost 2.4× as much.
Hy4
Tencent · $1.25/M out · 404 HN pts
GPT-6.1 Sol
OpenAI · $10.00/M out · 1,166 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 and the odd drum machine or piece of studio equipment. We look after instruments that have survived tours, basements, and years of silence in cupboards. Our task is not to make them new, but to make them dependable while keeping the character that made them worth saving.
Every repair starts with listening: to the fault, to the owner, and to the instrument itself. From there we diagnose carefully, solder cleanly, calibrate patiently, and replace parts only when necessary. Between us we bring electronics, restoration, design, and studio experience, which keeps the work practical, unhurried, and attentive to small details. We document what we find, source components with care, and explain the work in plain language. Some jobs take an afternoon; others become long conversations with forty-year-old circuits. In each case, the goal is simple: return the machine to the hands, recordings, and rooms where it belongs.
Patchbay is a three-person studio in Rotterdam, keeping vintage synthesizers in working hands. We repair the instruments that have picked up a crackle, lost a voice, drifted out of tune, or stopped making sound altogether.
We like the patient side of repair: tracing a fault, understanding an old circuit, and finding the right fix rather than the quickest workaround. Our aim is to make each instrument dependable without sanding away the character that made someone fall for it in the first place.
Some synths arrive with a clear problem. Others come with a story and a noise that only happens after twenty minutes. Either way, the work starts with listening—to the instrument and to the person who plays it.
We’re a small studio by choice. It keeps us close to the work, and to the musicians who trust us with something they want to keep making music with.
Specs and numbers
| Hy4 | GPT-6.1 Sol | |
|---|---|---|
| Maker | Tencent | OpenAI |
| Made in | China | US |
| Released | 4 Nov 2026 | 29 Sep 2026 |
| Price in, per M tokens | $0.417 | $2.00 |
| Price out, per M tokens | $1.25 | $10.00 |
| Context | 1,048,576 tokens | 1,050,000 tokens |
| Weights | open | closed |
| Hacker News points | 404 | 1,166 |
| Time for the six prompts | 16 min 15 s | 12 min 10 s |
| List price of the six prompts | $0.15 | $0.37 |
Hy4 was cheaper: $0.21 less at list price, and less on 3 of the 6 prompts. GPT-6.1 Sol was faster: 4 min 5 s less in total, and faster on 4 of the 6 prompts.
In the recording, both Breakout games play.
Rebuild this screen experiment: Hy4's rebuild matched the screenshot at 79%, GPT-6.1 Sol's 97%. Tea Garden experiment: Hy4's game passed 5 of 5 checks, GPT-6.1 Sol's 5 of 5.