"Sweet Tooth": Opus 5.5 one-shots an animated short in 18m31s (X video)
Tak 🦞 (@cherry_mx_reds) · 2026-09-22 · ai-made · 167,499 views
Made by AI
Model: Claude Opus 5.5 · Series: Code-rendered film (LLM writes the program that draws every frame)
Evidence: X post (2026-09-22): 'Opus 5.5 one-shot this animation in 18 minutes and 31 seconds / "Sweet Tooth" by Opus 5.5'
Human role: One-shot per the creator; prompt not in the post.
Pipeline: One prompt → Opus 5.5 code-rendered animation (18 min 31 s)
What's in the video
Description written by Gemini, which watched and listened to the whole video.
Summary
This video is an animated cartoon short titled "Sweet Tooth", posted by creator Tak 🦞 (@cherry_mx_reds), demonstrating an animation generated by Anthropic's Claude Opus 5.5. It depicts a small blocky creature attempting various clever ways to reach a piece of candy dangling from a string before celebrating with an on-screen title card.
What is shown
- [00:00 - 00:02] A small rectangular, four-legged character spots a wrapped candy hanging from a string above, showing wide starry eyes and drooling in anticipation.
- [00:03 - 00:07] The character tries jumping directly upward toward the candy but repeatedly falls short.
- [00:08 - 00:10] The character extends its legs into stilts to reach higher, loses balance, and falls over dazed with spinning eyes.
- [00:11 - 00:14] Having an idea, the character equips a coiled spring underneath its body and sketches out a parabolic trajectory on screen with a pencil.
- [00:15 - 00:18] The character compresses the spring, launches upward along the plotted arc, successfully snatches the candy mid-air, and lands safely.
- [00:19 - 00:23] The character happily munches the treat, blushing and dancing as floating hearts appear.
- [00:24 - 00:29] On-screen text initially displays "Opus 5", which then updates to "Opus 5.5" surrounded by sparkles while the character smiles and dances below.
Claims & numbers
- According to the video metadata/title, Claude Opus 5.5 generated the animation one-shot in 18 minutes and 31 seconds. (No verbal or quantitative benchmarks are spoken in the video itself).
Notable quotes
- [00:25] "Opus 5" (on-screen text)
- [00:26] "Opus 5.5" (on-screen text)
Assessment
This is an AI-generated creative demo showcasing Claude Opus 5.5's capabilities in generating coherent, multi-step 2D animation and visual storytelling. The piece appears fully rendered as a clean, cohesive animated short with synchronized sound effects and background music.
Lyrics & themes
- Lyrics: The piece is entirely instrumental; there are no spoken words or singing.
- Themes: Playful ingenuity, trial-and-error problem-solving, persistence, and celebrating iteration and intelligence upgrades.
Lore & references
- Opus 5 to Opus 5.5: The ending card shows "Opus 5" transitioning into "Opus 5.5", referencing Anthropic's release of the upgraded Claude Opus 5.5 model family in September 2026.
- Parabolic trajectory sketch: The creature drawing out physical trajectory calculations before jumping mirrors agentic reasoning and planning benchmarks often associated with frontier LLMs.
Visual style & craft
- Aesthetic: Hand-drawn, minimalistic 2D doodle animation featuring sketchy pencil-crayon crosshatching textures on a warm off-white canvas.
- Craft: Demonstrates fluid character expressions, cartoon squash-and-stretch physics, and frame-to-frame consistency with matched sound design (spring boings, impacts, chewing effects).
Described by gemini-3.8-flash on 2026-10-05 from the video's audio and frames.