• 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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Particle-1 vs Claude Fable 5.1

6 prompts both ran·Specs and numbers·Change models

Particle-1 took 7 min 13 s and $0.056 at list price, Claude Fable 5.1 took 16 min 4 s and $3.97 at list price. Claude Fable 5.1 took 2.2× as long and cost 71× as much.

Particle-1

Particle AI · $0.50/M out · 17 HN pts

Claude Fable 5.1

Anthropic · $50.00/M out · 1,630 HN pts

Only Claude Fable 5.1 has CLI runs here (Claude Code).

Pelican

Generate an SVG of a pelican riding a bicycle

Particle-1's SVG for the "Pelican riding a bicycle" prompt

Particle-1

19 s$0.00612k tokensAPI
Claude Fable 5.1's SVG for the "Pelican riding a bicycle" prompt

Claude Fable 5.1

26 s$0.0971.9k 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 Particle-1's page for the "Wristwatch that shows the current time" prompt

Particle-1

2 min$0.01021k tokensAPI
Still of Claude Fable 5.1's page for the "Wristwatch that shows the current time" prompt

Claude Fable 5.1

2 min 16 s$0.6012k 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 Particle-1's page for the "Landing page for a cargo bike workshop" prompt

Particle-1

2 min 19 s$0.01733k tokensAPI
Still of Claude Fable 5.1's page for the "Landing page for a cargo bike workshop" prompt

Claude Fable 5.1

5 min 44 s$1.4729k 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 Particle-1's page for the "Playable Breakout" prompt

Particle-1

2 min 10 s$0.01531k tokensAPI
Still of Claude Fable 5.1's page for the "Playable Breakout" prompt

Claude Fable 5.1

5 min 38 s$1.4228k tokensCLI

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

Particle-1's SVG for the "Bookshop logo" prompt

Particle-1

23 s$0.00815k tokensAPI
Claude Fable 5.1's SVG for the "Bookshop logo" prompt

Claude Fable 5.1

1 min 43 s$0.357.0k 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 is a three-person studio in Rotterdam dedicated to the repair and restoration of vintage synthesizers. We are engineers, musicians, and collectors who believe these instruments are not museum pieces but tools meant to be played, heard, and trusted on stage or in the studio. Our bench has seen everything from stubborn Moogs and fragile ARP boards to polysynths with corroded traces and keyboards that have traveled too many miles. We approach each repair with patience, documentation, and respect for the original design, while making sensible updates only where reliability demands them. Because we are a small team, you work directly with the person handling your instrument, from the first diagnosis to the final calibration. We also advise on maintenance, source hard-to-find parts, and help you decide when a repair is worthwhile. Patchbay exists to keep old synthesizers making new music.

Particle-1

3 s<$0.001866 tokensAPI

Patchbay is three people and one workshop in Rotterdam, and we spend our days bringing old synthesizers back to life. Most of what arrives at our bench is somewhere between thirty and fifty years old: a Juno with a dead voice chip, a Minimoog that drifts out of tune the moment the room warms up, a Polysix whose battery has quietly eaten its own circuit board. We know these instruments inside and out because we have had hundreds of them open on the table.

We started Patchbay because we kept meeting musicians who had been told their synth was not worth fixing. We disagree. These machines were built to be serviced, and with the right parts, enough patience, and a good set of schematics, almost any of them can be made to play again. When we hand an instrument back, we want it to sound the way it did the day it left the factory, or better.

Claude Fable 5.1

17 s$0.025494 tokensCLI

Specs and numbers

Particle-1Claude Fable 5.1
MakerParticle AIAnthropic
Made in—US
Released28 Oct 20261 Sep 2026
Price in, per M tokens$0.05$10.00
Price out, per M tokens$0.50$50.00
Context1,048,576 tokens1,000,000 tokens
Weightsclosedclosed
Hacker News points171,630
Time for the six prompts7 min 13 s16 min 4 s
List price of the six prompts$0.056$3.97

Particle-1 was cheaper: $3.92 less at list price, and less on each of the 6 prompts. Particle-1 was faster: 8 min 51 s less in total, and faster on each of the 6 prompts.

In the recording, Particle-1's Breakout game plays; Claude Fable 5.1's stopped painting.

Rebuild this screen experiment: Claude Fable 5.1's rebuild matched the screenshot at 78%; Particle-1 was not in it. Tea Garden experiment: Claude Fable 5.1's game passed 5 of 5 checks; Particle-1 was not in it.

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