Gemini 4 Carbon vs GPT-6.1 Sol
Gemini 4 Carbon took 18 min 40 s and $1.05 at list price, GPT-6.1 Sol took 12 min 10 s and $0.37 at list price. Gemini 4 Carbon took 1.5× as long and cost 2.9× as much.
Gemini 4 Carbon
Google · $10.00/M out · 308 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.
Tucked away in a bright workshop near the Rotterdam docks, Patchbay is a three-person studio dedicated to keeping electronic music history alive. We repair, restore, and calibrate vintage synthesizers, drum machines, and outboard gear. Whether it is a temperamental Juno with failing voice chips, a road-worn Minimoog drifting out of tune, or an obscure polysynth needing a complete overhaul, our benches are built for machines that make noise.
Between the three of us, we combine decades of experience in electronics, sound design, and obsessive troubleshooting. We do not view classic synthesizers as fragile museum pieces meant to sit behind glass; they are working instruments built to be played, patched, and pushed to their limits. Armed with original schematics, precision test gear, and a deep respect for analog circuitry, we bring tired hardware back from the brink—ready for another forty years in the studio or on stage.
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
| Gemini 4 Carbon | GPT-6.1 Sol | |
|---|---|---|
| Maker | OpenAI | |
| Made in | US | US |
| Released | 10 Nov 2026 | 29 Sep 2026 |
| Price in, per M tokens | $2.00 | $2.00 |
| Price out, per M tokens | $10.00 | $10.00 |
| Context | 1,048,576 tokens | 1,050,000 tokens |
| Weights | closed | closed |
| Hacker News points | 308 | 1,166 |
| Time for the six prompts | 18 min 40 s | 12 min 10 s |
| List price of the six prompts | $1.05 | $0.37 |
GPT-6.1 Sol was cheaper: $0.69 less at list price, and less on each of the 6 prompts. GPT-6.1 Sol was faster: 6 min 30 s less in total, and faster on 4 of the 6 prompts.
In the recording, both Breakout games play.
Rebuild this screen experiment: GPT-6.1 Sol's rebuild matched the screenshot at 97%; Gemini 4 Carbon was not in it. Tea Garden experiment: GPT-6.1 Sol's game passed 5 of 5 checks; Gemini 4 Carbon was not in it.