Arcade · shared October 2026

Squeak & Seek: an AI game made with GPT-6 + Opus 5.5

Cosy 3D cat-and-mouse: grab the cheese, hide from the cat, get home.

About Squeak & Seek

Simon Willison gave the same cat-and-mouse prompt to GPT-6 and Claude Opus 5.5. This is the GPT-6 version; the Opus version is a Claude Artifact you can open from this page.

Same prompt, other model: Opus 5.5 version (Claude Opus 5.5), opens on claude.ai.

How Squeak & Seek was made

Simon Willison credits GPT-6 and Claude Opus 5.5 in the post, page or repository where the game was shared. We copied that credit; we did not rebuild the game.

Follow Simon Willison for updates, or see every game by Simon Willison on this site.

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Squeak & Seek FAQ

Is Squeak & Seek free to play?

Yes. Squeak & Seek is free and runs in a web browser with no download or sign-up. You can play it on this page or open it on the creator’s site.

Which AI model made Squeak & Seek?

GPT-6 and Claude Opus 5.5, according to Simon Willison. The credit comes from the creator’s own post, page or repository.

Can I play Squeak & Seek on a phone?

Yes, it was made for phones and touch screens.