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56 minutesBuild Hour: Prompt Caching
OpenAI's own Build Hour on prompt caching — the 1024-token threshold, the prefix-stability requirement, audio caching at 99% discount for realtime, time-to-first-token impacts at long inputs.
Watch nextLiveOverflow. Frames prompt injection as a classic injection attack against systems that mix instructions and untrusted data — with a concrete content-moderation example where an attacker frames an innocent user. The mental shift from "the model is the target" to "the application is the target" is exactly the move the article opens with.
Treat this as conceptual guidance. Do not use real company data until permissions, retention, logging and human-review boundaries are clear.
Frames prompt injection as a classic injection attack against systems that mix instructions and untrusted data — with a concrete content-moderation example where an attacker frames an innocent user.
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