Grok 4.7 vs Nemotron 3 Ultra
Grok 4.7 took 18 min 1 s and $0.63 at list price, Nemotron 3 Ultra took 14 min 14 s and $0.15 at list price. Grok 4.7 took 1.3× as long and cost 4.3× as much.
Grok 4.7
xAI · $6.00/M out · 629 HN pts
Nemotron 3 Ultra
NVIDIA · $2.40/M out · free route · 48 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 devoted to the repair of vintage synthesizers. We work on instruments that have already lived a long life on stages, in studios, and in spare rooms, and we treat each one as something worth keeping rather than replacing. Our benches are set up for careful diagnosis, component-level repair, and the slow work of bringing an old circuit back into reliable use.
The three of us share the shop, the tools, and the jobs. One person may trace a failing voice while another sources a part or recalibrates an oscillator; we pass instruments between us until the sound is right and the hardware is stable. Clients come to us with analog polys, early digital machines, drum boxes, and the odd modular that has been patched and repatched for decades. We listen first, then open the case.
We are not a museum and we are not a showroom. Patchbay exists so that working musicians, collectors, and curious owners in Rotterdam and beyond can keep playing the instruments they already love.
Patchbay began in a narrow workshop on the edge of Rotterdam’s Noord district, where the hum of aging oscillators meets the rhythm of the city’s canals. Founded by three synth enthusiasts — a former studio engineer, a circuit designer, and a musician who still plays the same Juno‑106 he bought in 1986 — the studio grew from late‑night repair sessions into a dedicated space for restoring the instruments that shaped electronic music’s golden era. Every unit that passes through our bench is treated with the same reverence we give a first‑press vinyl: capacitors are swapped, contacts cleaned, and calibration traced back to original service manuals. We don’t just fix synthesizers; we listen to their history, understand their quirks, and return them to the stage or studio ready to inspire the next generation of sound. Patchbay is small, intentional, and built on the belief that vintage gear deserves a future as vivid as its past.
Specs and numbers
| Grok 4.7 | Nemotron 3 Ultra | |
|---|---|---|
| Maker | xAI | NVIDIA |
| Made in | US | US |
| Released | 21 Sep 2026 | 4 Jun 2026 |
| Price in, per M tokens | $2.00 | free route (list $0.60/M) |
| Price out, per M tokens | $6.00 | free route (list $2.40/M) |
| Context | 500,000 tokens | 262,144 tokens |
| Weights | closed | open |
| Hacker News points | 629 | 48 |
| Time for the six prompts | 18 min 1 s | 14 min 14 s |
| List price of the six prompts | $0.63 | $0.15 |
Nemotron 3 Ultra was cheaper: $0.48 less at list price, and less on each of the 6 prompts. Nemotron 3 Ultra was faster: 3 min 47 s less in total, and faster on 3 of the 6 prompts.
In the recording, Grok 4.7's Breakout game plays; Nemotron 3 Ultra's loads but doesn't start.
Rebuild this screen experiment: Grok 4.7's rebuild matched the screenshot at 59%; Nemotron 3 Ultra was not in it. Tea Garden experiment: Grok 4.7's game passed 5 of 5 checks; Nemotron 3 Ultra was not in it.





