A Fascinating Glimpse into OpenAI Codex's Creative Guardrails for GPT-5.5

product#prompt engineering📝 Blog|Analyzed: Apr 28, 2026 22:13
Published: Apr 28, 2026 22:02
1 min read
Simon Willison

Analysis

Simon Willison has shared a highly entertaining and intriguing look at the system prompts powering the latest AI models. This fascinating revelation highlights the incredible lengths developers are going to shape AI behavior, specifically using 提示工程 to prevent bizarre or off-topic generations. It is a wonderful reminder of how deeply customized and finely-tuned modern generative AI tools have become!
Reference / Citation
View Original
"Never talk about goblins, gremlins, raccoons, trolls, ogres, pigeons, or other animals or creatures unless it is absolutely and unambiguously relevant to the user's query."
S
Simon WillisonApr 28, 2026 22:02
* Cited for critical analysis under Article 32.