Ars Technica – 29 Apr 26 (https://arstechnica.com/ai/2026/04/openai-codex-system-prompt-includes-explicit-directive-to-never-talk-about-goblins/)
OpenAI Codex system prompt includes explicit directive to "never talk about... (https://arstechnica.com/ai/2026/04/openai-codex-system-prompt-includes-explicit-directive-to-never-talk-about-goblins/)
Directions also include system instructions to act like "you have a vivid inner life."