GPT-6.1 Terra vs Nemotron 3.5 Lightning
GPT-6.1 Terra took 5 min 29 s and $0.15 at list price, Nemotron 3.5 Lightning took 10 min 9 s and $0.012 at list price. Nemotron 3.5 Lightning took 1.9× as long, and GPT-6.1 Terra cost 13× as much.
GPT-6.1 Terra
OpenAI · $5.00/M out · 721 HN pts
Nemotron 3.5 Lightning
NVIDIA · $0.20/M out · free route · 399 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 studio in Rotterdam devoted to the restoration and repair of vintage synthesizers. We believe analog gear holds a living voice, and our purpose is to safeguard that sound for musicians, collectors, and creators who value authenticity. With hands-on experience in circuitry, voltage calibration, and component preservation, we treat every console, drum machine, or modular voice with meticulous care. Rotterdam’s eclectic artistic community fuels our commitment to keeping analog heritage alive, bridging past technology with present music. Whether rescuing a neglected lab unit or reviving a cherished polysynth, we approach each instrument as a unique piece of musical history, ensuring it performs as intended for years ahead. We love helping artists reconnect with the warmth and character only vintage hardware can offer. Our workshop sits in the heart of the city, where dusty circuit boards meet fresh compositions, and every repaired synth becomes part of a new musical story.
Specs and numbers
| GPT-6.1 Terra | Nemotron 3.5 Lightning | |
|---|---|---|
| Maker | OpenAI | NVIDIA |
| Made in | US | US |
| Released | 26 Oct 2026 | 11 Aug 2026 |
| Price in, per M tokens | $1.00 | free route (list $0.07/M) |
| Price out, per M tokens | $5.00 | free route (list $0.20/M) |
| Context | 1,050,000 tokens | 262,144 tokens |
| Weights | closed | open |
| Hacker News points | 721 | 399 |
| Time for the six prompts | 5 min 29 s | 10 min 9 s |
| List price of the six prompts | $0.15 | $0.012 |
Nemotron 3.5 Lightning was cheaper: $0.14 less at list price, and less on each of the 6 prompts. GPT-6.1 Terra was faster: 4 min 41 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%; Nemotron 3.5 Lightning was not in it. Tea Garden experiment: GPT-6.1 Terra's game passed 5 of 5 checks; Nemotron 3.5 Lightning was not in it.