• Updated 31 Oct, 14:35 UTC
  • Next run 1 Nov, 05:17 UTCNext 1 Nov 05:17
  • Last 7 days: 4 new models · 448 runs7 d: 4 models · 448 runs
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Claude Haiku 5.5 vs Kimi K3

6 prompts both ran·Specs and numbers·Change models

Claude Haiku 5.5 took 4 min 43 s and $0.035 at list price, Kimi K3 took 22 min 52 s and $1.92 at list price. Kimi K3 took 4.8× as long and cost 54× as much.

Claude Haiku 5.5

Anthropic · $0.50/M out · 1,071 HN pts

Kimi K3

Moonshot AI · $15.00/M out · 9,870 HN pts

Pelican

Generate an SVG of a pelican riding a bicycle

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

Claude Haiku 5.5

13 s$0.0012.7k tokensAPI
Kimi K3's SVG for the "Pelican riding a bicycle" prompt

Kimi K3

6 min 9 s$0.2718k 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 Claude Haiku 5.5's page for the "Wristwatch that shows the current time" prompt

Claude Haiku 5.5

34 s$0.0047.6k tokensAPI
Still of Kimi K3's page for the "Wristwatch that shows the current time" prompt

Kimi K3

3 min 36 s$0.4429k 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 Claude Haiku 5.5's page for the "Landing page for a cargo bike workshop" prompt

Claude Haiku 5.5

80 s$0.01122k tokensAPI
Still of Kimi K3's page for the "Landing page for a cargo bike workshop" prompt

Kimi K3

6 min 35 s$0.5033k 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 Claude Haiku 5.5's page for the "Playable Breakout" prompt

Claude Haiku 5.5

2 min 21 s$0.01836k tokensAPI
Still of Kimi K3's page for the "Playable Breakout" prompt

Kimi K3

4 min 25 s$0.4530k tokensAPI

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

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

Claude Haiku 5.5

13 s$0.0012.6k tokensAPI
Kimi K3's SVG for the "Bookshop logo" prompt

Kimi K3

2 min 2 s$0.2516k 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 is a three-person studio in Rotterdam, and we spend our days inside vintage synthesizers. We are repair technicians first: we open the cases, replace the leaking capacitors, re-tune the oscillators that have drifted out of pitch, and bring back the filters that went silent decades ago. Our bench is crowded with service manuals, spare chips, and a soldering station that has seen more Moog panels than we can count. We started the studio because we kept meeting musicians whose favourite instruments sat unused in cupboards, not because they were broken beyond saving but because nobody nearby knew how to fix them. We still believe most of these machines can be made to sing again, and we would rather spend an afternoon finding the one bad resistor than see another good synth end up in a skip.

Claude Haiku 5.5

2 s<$0.001252 tokensAPI

Patchbay is a small workshop in Rotterdam where old synthesizers come back to life. We are three people — a former recording engineer, a self-taught circuit obsessive, and a classically trained pianist who fell in love with broken machines — and between us we have spent decades coaxing sound out of equipment the rest of the world gave up on.

We started Patchbay because we kept meeting the same problem: beloved instruments sitting silent in attics and studio corners, written off as unfixable. A Juno with a dead voice chip. A Prophet that drifts out of tune. A Moog that hums when it shouldn't. To us, none of these are lost causes. They are instruments with history in them, and they deserve careful hands, original parts where possible, and honest work.

Every synth that leaves our bench is played, tested, and listened to — because that is what it was made for.

Kimi K3

6 s$0.013872 tokensAPI

Specs and numbers

Claude Haiku 5.5Kimi K3
MakerAnthropicMoonshot AI
Made inUSChina
Released7 Oct 202616 Jul 2026
Price in, per M tokens$0.10$0.192
Price out, per M tokens$0.50$15.00
Context1,000,000 tokens1,048,576 tokens
Weightsclosedopen
Hacker News points1,0719,870
Time for the six prompts4 min 43 s22 min 52 s
List price of the six prompts$0.035$1.92

Claude Haiku 5.5 was cheaper: $1.88 less at list price, and less on each of the 6 prompts. Claude Haiku 5.5 was faster: 18 min 9 s less in total, and faster on each of the 6 prompts.

In the recording, both Breakout games play.

Rebuild this screen experiment: Kimi K3's rebuild matched the screenshot at 68%; Claude Haiku 5.5 was not in it. Tea Garden experiment: Kimi K3's game passed 5 of 5 checks; Claude Haiku 5.5 was not in it.

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