Sherwin Wu discusses the adoption of stateful API patterns across AI providers at OpenAI DevDay 2025.
Assertion Supported
OpenAI integrates with OpenRouter for multi-provider evals
“We have a really cool setup with Open Router, where we're working with them, and then you can bring your Open Router setup. And then with that, you can actually, you know, you write your evals using our data sets tool, or use our data set tool to create a bunc…”
Insight
AI industry has completed only 10% of necessary agent evaluation progress
“I actually think agent evals is still a work in progress. So I think we've, like, made maybe 10% of the progress that we need here.”
Insight
Prompt engineering has grown more entrenched despite predictions of its demise
“I feel like two years ago, people were like, oh, at some point, prop, like, prompting's gonna be dead. Like, you know, and it's like, you know... And if anything, it is, like, become more and more entrenched. And I think that, you know, there's this interestin…”
Assertion Supported
Apple Siri routes requests based on the user's ChatGPT subscription tier
“If you sign into your ChatGPT account the Siri integration will actually use your subscription status to decide what type of model to use when it passes things over to ChatGPT. And so if you're you know just a free user you get, you know, the free model. But i…”
Insight
Wu: Cheaper inference does not cut developer spending due to surging demand
“What we realized is as we make it cheaper, you know, the demand for that goes up even more, and you end up, you know, still spending quite a bit”
Assertion Not checkable as stated
OpenAI Codex successfully one-shots entire features 30% to 40% of the time
“What a lot of the interns would do is just, like, full YOLO mode, like, trust it to, like, write the whole feature. And it, like, it doesn't work. It, like, doesn't work sometimes. But, like, I don't know, like, 30, 40% of the time it just, like, one-shots it.”