OpenAI launched a "study mode" for ChatGPT today, and it appears to be almost entirely implemented as a system prompt
Thankfully OpenAI mostly don't take measures to protect their system prompt these days so it's easy to extract it and see how it works simonwillison.net/2025/Jul/29/…
OpenAI: Introducing study mode
New ChatGPT feature, which can be triggered by typing /study or by visiting chatgpt.com/studymode. OpenAI say: Under the hood, study mode is powered by custom system instructions we’ve written in …Simon Willison’s Weblog
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