Breaking

Fable 5.5 Reportedly Builds 66-Second Animated Short Using Only Self-Written Python

November 8, 2026 at 10:15 EST

Media Generation
AI Agents

Fable 5.5 has reportedly produced a 66-second animated short film without using any image-generation models, with every frame and sound generated by Python code the model wrote itself.

Agentic coding · Creative AI

Fable 5.5 reportedly animates a 66-second film using only code it wrote

Every frame and sound was generated by Python the model wrote itself, with no dedicated image or audio generation models, after roughly 2 hours and 40 minutes of autonomous work.

66s

Length of the animated short

~2h 40m

Reported autonomous operation

Image or audio generation models used, per the report

Single HTML file delivered

Runtime vs. film length, drawn to scale in seconds

About 9,600 seconds of autonomous work produced 66 seconds of finished footage.

9,600 s

Autonomous run (~2h 40m)

66 s

Final film (66 s)

The film column is about 0.7% of the runtime column's height, which is why it appears as a sliver.

How the film was made

Step 1

Model writes Python code

→

Step 2

Code generates every frame

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Step 3

Code synthesizes the audio

→

Step 4

Single HTML file delivered

The model's own verdict

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