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jacktu

7 karma · joined May 3, 2026

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jacktu··on A recent experience with ChatGPT 5.5 Pro
That's a real shift. The value of an open problem used to be that it was unsolved. Now an open problem needs to be unsolvable by something that can read the entire literature and try a hundred approaches in an hour.
jacktu··on AI didn't delete your database, you did
When I was setting up the generation pipeline for my own AI project, I had to hardcode strict.
jacktu··on Computer Use is 45x more expensive than structured APIs
Totally agree. I’ve been building an AI visual tool recently and experimented with both approaches. The latency and c ost of generic "agentic" browser use are absolute dealbreakers for real-time consumer apps right now. Structured APIs (even just chained LLM calls with strict JSON schemas) are not only 40x cheaper, but more importantly, they are deterministic enough to actually build a stable product on top of. Computer use is an amazing demo, but structured APIs are what pay the server bills.