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Data Science
Simon Willison's Blog·22d ago·5 min read
simonw/pedalican
TL;DR
Simon Willison created a custom animated pet, a pelican on a bicycle, for Codex Desktop using GPT-5.6 and gpt-image-2. By specifying his vision, he utilized AI to generate sprite assets and animation loops.
✦ Why It Matters
Engineers can experiment with AI models like GPT-5.6 and gpt-image-2 to create unique digital assets for applications.
Key Takeaways
- Experiment with AI for custom sprite creation in your projects.
- Utilize open-source tools to enhance your game development workflow.
- Document your AI-generated assets for future reference and sharing.
- Explore character design prompts to improve asset quality and animation.
How It Works
The creation of Pedalican involved a multi-step process where GPT-5.6 generated a character reference based on specific prompts. This reference was then used by gpt-image-2 to create the necessary sprite assets, including a full-body reference and animation loops.
The use of a chroma-key background facilitated easy animation, making the final product suitable for integration into Codex Desktop.