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Showing posts with the label Responses API

OpenAI Apps SDK and ChatGPT Integration: Building the Ham Radio Practice Exam at Project TouCans

 Everything’s moving fast in AI again! Yesterday, OpenAI announced the ChatGPT Apps SDK, a framework that lets developers build full-featured web apps right inside ChatGPT. For Project TouCans, that’s a huge step forward. Just last month, I built two prototypes of the AI-enabled Ham Radio Practice Exam—one running Python inside GPT-5’s Code Interpreter, and another in a JavaScript canvas embedded within ChatGPT. Back then, those two couldn’t talk to each other. Now, with the new Apps SDK, they finally can—and that means real-time, interactive AI help during exams is finally within reach. You can try out the latest version of the extra class practice exam here (sans the Apps SKD so far.)

How I Cut GPT Input Costs 10× by Turning Off the Vector Store on the Ham Radio Practice Exams

I finally found out why my Extra Class AI Tutor was spending nearly ten times more on input than output tokens. It wasn’t the math, the cache, or the prompt—it was the vector store. Turning it off cut token usage from 17021 to 1743 in a single move.