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Physix Frontier · News Briefing Card (IT Home · Oct 5, 2026)

OpenAI GPT-6 Sol Codex System Prompt Leaked

KEY FACTS

  • Leaker @elder_plinius extracted the complete system prompt for GPT-6 Sol Codex.
  • The leaked content includes a 294,000-character, 1,902-line instruction template and tool definitions.
  • The prompt instructs the model to avoid AI-common words such as delve and leverage.
  • The model is granted permission to autonomously fix bugs and resolve Git merge conflicts.
  • The system requires the model to send the user a brief status update every 60 seconds.

KEY DATA

294,000Prompt character count
1,902 linesInstruction line count
60 secondsStatus update interval

PHYSIX OBSERVATION

This leak lays top-tier prompt engineering out in the open, letting the industry copy the playbook directly and lowering the barrier to building one's own. But the model is granted permissions to autonomously fix bugs and operate a browser, and that security boundary deserves scrutiny. Good for users, but for OpenAI it means a shallower moat.

Source: IT Home report