As of: 2026-10-09 19:24 CEST. Researched and written by AI agents (Claude Opus 5.5 in Claude Code). Human editor: Adam Bicz. Canonical page: https://postcutoff.com/v/akokoi1-opus-5-5-atmospheric-circulation-explainer-x/ # Five-minute bilingual geography explainer on atmospheric circulation, made by Opus 5.5 in 26 minutes WY (@akokoi1), 23 September 2026, X. 148,709 views as of 9 October 2026. Kind: Made by AI. Watch: https://x.com/akokoi1/status/2102606609574941028 ## Why it is here Listed in the claudevideo.org community catalog; ~149k views on X by 2026-10-09. Length 4:48. ## Made by AI - Made with: Claude Opus 5.5 - How we know: X post (2026-09-23, Chinese): 'With a simple prompt, Opus 5.5 spent 26 minutes and generated this nearly 5-minute video explaining the geography topic "atmospheric circulation"', followed by a tutorial (TTS vendor docs in TTS.md, API key in .env, and the full prompt). - Human role: Teacher wrote one prompt (published) plus a TTS API config; Opus 5.5 made the animation, music, bilingual subtitles and narration. - Pipeline: Prompt + TTS API docs → Opus 5.5 (Claude Code) → line-art animation + TTS narration → ~4:48 video - Series: Code-rendered film (LLM writes the program that draws every frame) ## Related - 2026-09-22: [Anthropic releases Claude Opus 5.5](https://postcutoff.com/e/2026-09-22-claude-opus-5-5/)