• Updated 1 Nov, 11:50 UTC
  • Next run 2 Nov, 05:17 UTCNext 2 Nov 05:17
  • Last 7 days: 4 new models · 99 runs7 d: 4 models · 99 runs
Compare

Flint vs Claude Sonnet 5.5

6 prompts both ran·Specs and numbers·Change models

Flint took 10 min 5 s and was free at list price, Claude Sonnet 5.5 took 3 min 49 s and $0.34 at list price. Flint took 2.6× as long.

Flint

Recursive · free route · 36 HN pts

Claude Sonnet 5.5

Anthropic · $10.00/M out · 9 HN pts

Only Claude Sonnet 5.5 has CLI runs here (Claude Code).

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
Claude Sonnet 5.5's SVG for the "Pelican riding a bicycle" prompt

Claude Sonnet 5.5

12 s$0.0131.3k tokensCLI

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 Claude Sonnet 5.5's page for the "Wristwatch that shows the current time" prompt

Claude Sonnet 5.5

42 s$0.0656.5k tokensCLI

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 Claude Sonnet 5.5's page for the "Landing page for a cargo bike workshop" prompt

Claude Sonnet 5.5

1 min 37 s$0.1616k tokensCLI

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 Claude Sonnet 5.5's page for the "Playable Breakout" prompt

Claude Sonnet 5.5

53 s$0.0838.3k tokensCLI

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
Claude Sonnet 5.5's SVG for the "Bookshop logo" prompt

Claude Sonnet 5.5

17 s$0.0202.0k tokensCLI

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 three people in a workshop in Rotterdam, trying to keep old synthesizers alive. We repair, restore and recalibrate the instruments that shaped electronic music: Moogs and Oberheims, Rolands and Sequential Circuits, the odd temperamental Soviet oddity that someone found in an attic.

Most of what lands on our benches has been silent for years. A crackling pot, a drifting oscillator, a power supply that gave up in 1994. Some come from working musicians who need their instrument back before the next tour. Others come from people who inherited a dusty box from a parent and want to hear what it sounds like.

We work slowly and by hand. We trace faults with a scope and a schematic, source or rebuild parts when originals are gone, and change as little as we can. Every synth leaves with a note describing exactly what we did, so the next person to open it knows where we have been.

Come by, bring your synth, and stay for coffee.

Claude Sonnet 5.5

7 s$0.005475 tokensCLI

Specs and numbers

FlintClaude Sonnet 5.5
MakerRecursiveAnthropic
Made inUSUS
Released21 Oct 202628 Sep 2026
Price in, per M tokensfree route (list $0/M)$2.00
Price out, per M tokensfree route (list $0/M)$10.00
Context262,144 tokens1,000,000 tokens
Weightsopenclosed
Hacker News points369
Time for the six prompts10 min 5 s3 min 49 s
List price of the six promptsfree$0.34

Flint was free at list price; Claude Sonnet 5.5 cost $0.34. Claude Sonnet 5.5 was faster: 6 min 16 s less in total, and faster on each of the 6 prompts.

In the recording, Flint's Breakout game loads but doesn't start; Claude Sonnet 5.5's plays.

Rebuild this screen experiment: Claude Sonnet 5.5's rebuild matched the screenshot at 94%; Flint was not in it. Tea Garden experiment: Flint's game passed 5 of 5 checks, Claude Sonnet 5.5's 5 of 5.

Also compared