NooBench · Run 1 · Oct 10, 2026

Claude Pro vs ChatGPT Plus

Six apps. The same short brief and one prompt each, no help.

	Claude ProOpus 5.5	ChatGPT PlusGPT-6.1 Sol
Price	$20/mo	$20/mo
Time to build all 6	2h 59m	1h 58m
5-hour limits used	2.3 · hit 2×	0.5
Weekly limit used	19%	8%
Full runs per weekbefore the weekly limit	~5	~12
Same work on the APIat list prices	$42.40	$4.02

Future car · 3D showroom

A self-driving car from 2036 in a 3D showroom, built in code, that comes apart into transparent pieces and back together. Prompt

Future car · 3D showroom, built by Opus 5.5: first screen — Opus 5.5 46 min · 47% of 5h limit Open app ↗Code

Future car · 3D showroom, built by GPT-6.1 Sol: first screen — GPT-6.1 Sol 35 min · 13% of 5h limit Open app ↗Code

Meme studio

A meme and sticker maker where the code draws everything. Prompt

Meme studio, built by Opus 5.5: first screen — Opus 5.5 34 min · 50% of 5h limit Open app ↗Code

Meme studio, built by GPT-6.1 Sol: first screen — GPT-6.1 Sol 20 min · 10% of 5h limit Open app ↗Code

Presentation maker

A calm slide editor and presenter people would pick over the one at work. Prompt

Presentation maker, built by Opus 5.5: first screen — Opus 5.5 34 min · 49% of 5h limit Open app ↗Code

Presentation maker, built by GPT-6.1 Sol: first screen — GPT-6.1 Sol 19 min · 7% of 5h limit Open app ↗Code

Habit app (React Native)

A habit app people would still open a month later, built with React Native. Prompt

Habit app (React Native), built by Opus 5.5: first screen — Opus 5.5 37 min · 47% of 5h limit Open app ↗Code

Habit app (React Native), built by GPT-6.1 Sol: first screen — GPT-6.1 Sol 18 min · 7% of 5h limit Open app ↗Code

AI tools directory

An out-of-the-box, almost text-free directory of AI tools. Prompt

AI tools directory, built by Opus 5.5: first screen — Opus 5.5 15 min · 19% of 5h limit Open app ↗Code

AI tools directory, built by GPT-6.1 Sol: first screen — GPT-6.1 Sol 14 min · 6% of 5h limit Open app ↗Code

Personal site for a writer

A personal website for a writer the agent invents, with posts worth reading. Prompt

Personal site for a writer, built by Opus 5.5: first screen — Opus 5.5 14 min · 18% of 5h limit Open app ↗Code

Personal site for a writer, built by GPT-6.1 Sol: first screen — GPT-6.1 Sol 13 min · 6% of 5h limit Open app ↗Code Its form needs the app’s own server, so it doesn’t send anything here.