• 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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Step 5 Preview vs Kimi K3

6 prompts both ran·Specs and numbers·Change models

Step 5 Preview took 10 min 44 s and $0.33 at list price, Kimi K3 took 22 min 52 s and $1.92 at list price. Kimi K3 took 2.1× as long and cost 5.8× as much.

Step 5 Preview

StepFun · $2.70/M out · 155 HN pts

Kimi K3

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

Pelican

Generate an SVG of a pelican riding a bicycle

Step 5 Preview's SVG for the "Pelican riding a bicycle" prompt

Step 5 Preview

32 s$0.0196.9k 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 Step 5 Preview's page for the "Wristwatch that shows the current time" prompt

Step 5 Preview

22 s$0.0134.9k 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 Step 5 Preview's page for the "Landing page for a cargo bike workshop" prompt

Step 5 Preview

4 min 7 s$0.1453k 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 Step 5 Preview's page for the "Playable Breakout" prompt

Step 5 Preview

1 min 55 s$0.06825k 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.

Step 5 Preview's SVG for the "Bookshop logo" prompt

Step 5 Preview

3 min 41 s$0.08431k 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 workshop based in Rotterdam, dedicated to keeping vintage synthesizers alive and playable. We are technicians, musicians, and obsessive tinkerers who believe that classic analog instruments deserve better than silence. From temperamental Jupiter-8s to worn-out ARP Odysseys, we restore, repair, and maintain the machines that shaped the sound of modern music. Every repair starts with listening—both to the instrument and to the person who plays it. Whether you are chasing a rare fault, need a full calibration, or simply want your old synth to feel new again, our bench is open. We understand that no two synthesizers arrive with the same story, and we treat each circuit, slider, and key with the care its history deserves. At Patchbay, we are here to make sure the sounds of tomorrow are built on those that came before.

Step 5 Preview

7 s$0.003919 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

Step 5 PreviewKimi K3
MakerStepFunMoonshot AI
Made inChinaChina
Released8 Oct 202616 Jul 2026
Price in, per M tokens$1.00$0.192
Price out, per M tokens$2.70$15.00
Context1,048,576 tokens1,048,576 tokens
Weightsopenopen
Hacker News points1559,870
Time for the six prompts10 min 44 s22 min 52 s
List price of the six prompts$0.33$1.92

Step 5 Preview was cheaper: $1.59 less at list price, and less on each of the 6 prompts. Step 5 Preview was faster: 12 min 8 s less in total, and faster on 4 of the 6 prompts.

In the recording, both Breakout games play.

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

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