Claude Fable 5.1 vs Inkling
Claude Fable 5.1 took 16 min 4 s and $3.97 at list price, Inkling took 8 min 30 s and $0.21 at list price. Claude Fable 5.1 took 1.9× as long and cost 19× as much.
Claude Fable 5.1
Anthropic · $50.00/M out · 1,630 HN pts
Inkling
Thinking Machines · $4.05/M out · free route · 4 HN pts
Only Claude Fable 5.1 has CLI runs here (Claude Code).
Pelican
Generate an SVG of a pelican riding a bicycle
Watch
Draw a mechanical wristwatch that shows the current local time, with a sweeping seconds hand and a date window. Make it look expensive.
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.
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.
Logo
Design a logo for Night Heron, an independent bookshop that only opens after dark.
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 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.
Patchbay is a three-person repair studio in Rotterdam dedicated to vintage synthesizers. We work on analog circuits, replace failing capacitors and resistors, calibrate unstable oscillators, and restore instruments that have been silent for years. Our bench sees early Japanese mono synths, European string machines, American polys, and large modular systems. We treat each repair as a specific problem rather than a routine job, because these machines were built differently and fail differently. The studio grew out of our own need for careful, local repairs. Over time, musicians, collectors, and producers across the Netherlands started bringing us gear they could not trust elsewhere. We open every case with the same approach: diagnose the fault properly, use appropriate parts, and test the result thoroughly. We do not apply quick fixes or ignore underlying issues. Whether your synthesizer suffers from tuning drift, dead voices, noisy outputs, or an unknown electrical fault, we are in Rotterdam to find the cause and return it to reliable working condition.
Specs and numbers
| Claude Fable 5.1 | Inkling | |
|---|---|---|
| Maker | Anthropic | Thinking Machines |
| Made in | US | US |
| Released | 1 Sep 2026 | 17 Jul 2026 |
| Price in, per M tokens | $10.00 | free route (list $1.00/M) |
| Price out, per M tokens | $50.00 | free route (list $4.05/M) |
| Context | 1,000,000 tokens | 524,288 tokens |
| Weights | closed | open |
| Hacker News points | 1,630 | 4 |
| Time for the six prompts | 16 min 4 s | 8 min 30 s |
| List price of the six prompts | $3.97 | $0.21 |
Inkling was cheaper: $3.76 less at list price, and less on each of the 6 prompts. Inkling was faster: 7 min 34 s less in total, and faster on 5 of the 6 prompts.
In the recording, Claude Fable 5.1's Breakout game stopped painting; Inkling's plays.
Rebuild this screen experiment: Claude Fable 5.1's rebuild matched the screenshot at 78%, Inkling's 51%. Tea Garden experiment: Claude Fable 5.1's game passed 5 of 5 checks, Inkling's 5 of 5.





