Anthropic Dev Shares the Prompts Behind His Opus 5.5 Code-Rendered Films

dfeinition · x · 2026-10-20

An Anthropic demo builder explains how his Opus 5.5 'films' work: no video model involved—Claude returns runnable code that paints the film frame by frame. Key lesson from hundreds of attempts: name a concrete material or medium rather than vague style words like 'cinematic'. He shares the actual prompts to help people past the empty text box.

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