Dev generates 500 clocks in one 6.3 MB HTML file with Claude Opus 5.5
tkgally · hn · 2026-10-18
A developer shares his personal frontier-model benchmark: prompting models to build self-contained web pages displaying clocks, his take on Simon Willison's pelican-on-a-bicycle test.
Across several sessions in the Claude chat interface, he had Claude Opus 5.5 build 500 clocks in total, and was impressed by their variety, interest, and quality. The process and design notes are open-sourced in the GitHub repo tkgally/500-clocks, packaged as a single 6.3 MB HTML file.
More from Fun
- 'Woken by the token reset': developers joke about living on AI usage quotas — burhop · 2026-10-23
- AI-generated movie poster 'The Chase' crams a wolf, a plane and muscle cars into one chase — Aggravating-Sir-115 · 2026-10-23
- Reporter Loops an AI Agent to Hoard Shopping Cart Holds for Hours — lfschiavo · 2026-10-23
- Dating app rejection comes back with only an 'InvalidDateException' error message — gregmushen · 2026-10-23
- AI circle joke: mathematicians should teach 'ethics of matrix multiplication' for Anthropic's ToS — kuza55 · 2026-10-23
- AI-Generated Short 'My Little Monster And Me' Charms Reddit — No_Personality535 · 2026-10-23