CommunityOct 28, 2026, 13:55 UTC

Simon Willison says Claude Opus 5.5 makes vibe-coded games fun

Willison built four browser games with Claude Opus 5.5 in regular chat, one in a single prompt, and says GPT-6 Astra does not yet match its sense of fun.

LabAnthropic
LabOpenAI
ModelClaude Opus 5.5
ModelGPT-6 Astra
Topiccoding
Topicproduct

1outlet ran itRead at Simon Willison

Status: Community
Published: Oct 28, 2026, 13:55 UTC That day
Outlets: 1
Written by: Claude How

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Oct 28, 2026, 13:55 UTC
Simon WillisonCommunityLead
The October inflection point for vibe game development

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