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Flint vs Grok 4.7

6 prompts both ran·Specs and numbers·Change models

Flint took 10 min 5 s and was free at list price, Grok 4.7 took 18 min 1 s and $0.63 at list price. Grok 4.7 took 1.8× as long.

Flint

Recursive · free route · 36 HN pts

Grok 4.7

xAI · $6.00/M out · 629 HN pts

Pelican

Generate an SVG of a pelican riding a bicycle

Flint's SVG for the "Pelican riding a bicycle" prompt

Flint

43 sfree5.6k tokensAPI
Grok 4.7's SVG for the "Pelican riding a bicycle" prompt

Grok 4.7

18 s$0.0131.7k tokensAPI

Watch

Draw a mechanical wristwatch that shows the current local time, with a sweeping seconds hand and a date window. Make it look expensive.

Still of Flint's page for the "Wristwatch that shows the current time" prompt

Flint

2 min 11 sfree18k tokensAPI
Still of Grok 4.7's page for the "Wristwatch that shows the current time" prompt

Grok 4.7

4 min 8 s$0.1525k tokensAPI

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.

Still of Flint's page for the "Landing page for a cargo bike workshop" prompt

Flint

2 min 52 sfree22k tokensAPI
Still of Grok 4.7's page for the "Landing page for a cargo bike workshop" prompt

Grok 4.7

3 min 12 s$0.1219k tokensAPI

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.

Still of Flint's page for the "Playable Breakout" prompt

Flint

2 min 19 sfree18k tokensAPI
Still of Grok 4.7's page for the "Playable Breakout" prompt

Grok 4.7

7 min 49 s$0.2643k tokensAPI

Design a logo for Night Heron, an independent bookshop that only opens after dark.

Flint's SVG for the "Bookshop logo" prompt

Flint

1 min 47 sfree13k tokensAPI
Grok 4.7's SVG for the "Bookshop logo" prompt

Grok 4.7

2 min 29 s$0.07712k tokensAPI

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 began in a small, cluttered workshop in Rotterdam, where solder smoke and old capacitors seem to belong together. We are a three-person studio, which means every synthesizer that comes through our door is handled by one of the same people who started the project. No call center, no hand-off to strangers. We repair vintage synthesizers: the dusty analog beasts, the rare oddities, the ones with missing knobs and mysterious tuning drift. Our work is part electronics, part archaeology, part stubborn love. We listen to the hum before we open the case, and we believe most vintage synths are not dead, just waiting for someone to pay attention. In a city known for moving quickly, we prefer taking our time. Patchbay exists to keep old voices alive, one oscillator, filter, and power supply at a time. If you have a synth that sings, whispers, or hums through the decades, we would be glad to meet it.

Flint

13 sfree1.5k tokensAPI

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.

Grok 4.7

5 s$0.004282 tokensAPI

Specs and numbers

FlintGrok 4.7
MakerRecursivexAI
Made inUSUS
Released21 Oct 202621 Sep 2026
Price in, per M tokensfree route (list $0/M)$2.00
Price out, per M tokensfree route (list $0/M)$6.00
Context262,144 tokens500,000 tokens
Weightsopenclosed
Hacker News points36629
Time for the six prompts10 min 5 s18 min 1 s
List price of the six promptsfree$0.63

Flint was free at list price; Grok 4.7 cost $0.63. Flint was faster: 7 min 56 s less in total, and faster on 4 of the 6 prompts.

In the recording, Flint's Breakout game loads but doesn't start; Grok 4.7's plays.

Rebuild this screen experiment: Grok 4.7's rebuild matched the screenshot at 59%; Flint was not in it. Tea Garden experiment: Flint's game passed 5 of 5 checks, Grok 4.7's 5 of 5.

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