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A leaked system prompt reveals GPT-5's internal instructions and capabilities. The prompt shows personality guidelines emphasizing clarity and enthusiasm, memory management through a 'bio' tool, canvas functionality for document creation, image generation capabilities, Python code execution environment, and web search tools. It includes specific behavioral constraints like avoiding opt-in questions and copyright material reproduction.

gpt-5 leaked system prompt

I see these leaked prompts all the time but never a source for them. How can we know that is actually the prompt for gpt 5?

Not the system prompt as usual, only something the LLM generated for the user

GPT-5 don’t use matplotlib for charts :D