• Updated 1 Nov, 11:50 UTC
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  • Last 7 days: 4 new models · 99 runs7 d: 4 models · 99 runs
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Flint vs GPT-6 Luna

6 prompts both ran·Specs and numbers·Change models

Flint took 10 min 5 s and was free at list price, GPT-6 Luna took 4 min 43 s and $0.017 at list price. Flint took 2.1× as long.

Flint

Recursive · free route · 36 HN pts

GPT-6 Luna

OpenAI · $0.50/M out · 24 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
GPT-6 Luna's SVG for the "Pelican riding a bicycle" prompt

GPT-6 Luna

42 s$0.0024.1k 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 GPT-6 Luna's page for the "Wristwatch that shows the current time" prompt

GPT-6 Luna

54 s$0.0035.6k 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 GPT-6 Luna's page for the "Landing page for a cargo bike workshop" prompt

GPT-6 Luna

1 min 33 s$0.00613k 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 GPT-6 Luna's page for the "Playable Breakout" prompt

GPT-6 Luna

59 s$0.0047.8k 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
GPT-6 Luna's SVG for the "Bookshop logo" prompt

GPT-6 Luna

29 s$0.0012.8k 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 repairing vintage synthesizers. We work with instruments that have been played, carried, opened up, and passed from one owner to the next. Each arrives with its own history and its own set of quirks, so we begin by listening carefully and tracing the problem before reaching for a fix.

Our work ranges from straightforward maintenance to deeper electronic repairs. We clean, test, diagnose, and restore with the aim of making a synthesizer reliable again while respecting the design that gives it its voice. When a repair calls for a replacement part, we look for a solution that fits the instrument rather than treating it as disposable.

Patchbay is run by three people who share a curiosity about how these machines work and a respect for the sounds they make. We believe a well-cared-for synthesizer has plenty more music in it, and we’re here to help it find its way back into someone’s hands.

GPT-6 Luna

6 s<$0.001387 tokensAPI

Specs and numbers

FlintGPT-6 Luna
MakerRecursiveOpenAI
Made inUSUS
Released21 Oct 202622 Sep 2026
Price in, per M tokensfree route (list $0/M)$0.10
Price out, per M tokensfree route (list $0/M)$0.50
Context262,144 tokens1,050,000 tokens
Weightsopenclosed
Hacker News points3624
Time for the six prompts10 min 5 s4 min 43 s
List price of the six promptsfree$0.017

Flint was free at list price; GPT-6 Luna cost $0.017. GPT-6 Luna was faster: 5 min 22 s less in total, and faster on each of the 6 prompts.

In the recording, Flint's Breakout game loads but doesn't start; GPT-6 Luna's plays.

Tea Garden experiment: Flint's game passed 5 of 5 checks; GPT-6 Luna was not in it.

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