The Ledger
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Future Llama models will match frontier GPT models if progress slows
“As AI progress slows down, so if we get like Llama-IV, Llama-V for example, maybe it's a comparable at that point, like GPT-V or GPT-VI, like, It made it to the point where it was like, look, I just want to use Lama. Like, it's, you know, safe for me to, you k…”
Royzen: The leap from GPT-4 to GPT-5 will be smaller
“I think that GPT-IV, my hypothesis is that the jump from four to 4.5, or four to five, will be smaller than the jump from Three to four.”
Frontier models are cheaper for agentic tasks because they require fewer turns
“Interestingly, in Tau Tau Two Bench Telecom, it's cheaper to run, you know, on a per token basis, more expensive models, like a GBD five, compared to some smaller open source models, because the some of the GBD five, for instance got to the answer faster. And …”
Early GPT-5 testers report noticeable gains across coding, science, and writing
“And the story that we wrote, we kind of talked about how at least the people that we've talked to who tested it so far have been pretty impressed. They seem to think that it's been, you know, there's been improvements in a number of domains and both like scien…”
Byun: Foundational models will not commoditize Elicit due to deep workflow specialization
“I think about this a lot in the context of moats. People are like, oh, what's your moat? What happens if GPT-V comes out? It's like, if GPT-V comes out, there's still like all of this other space that we can go into. And so I think being really obsessed with t…”
McGrath: GPT-5.1 dramatically reduced token usage over GPT-5 while boosting evals
“Yeah, and so you can see, like, from five to 5.1, our overall evals, you know, we bumped some. But if you look at a two D plot of how many tokens it takes for us to get that, it went way down.”
Fioca: OpenAI evaluates GPT-5 coding models on behavioral software engineering practices
“And so these are just best software engineering practices that turn out to be behavior characteristics, and we can measure the model's performance on those behaviors and grade it that way.”
Fioca: GPT-5 matches Codex coding capability but adds step-by-step preambles
“With the five series, because it's more general, and it's just about as good as coding as codex for a lot of things. We've taught it to be more communicative. And so it has preambles before tool calls. It'll say things like, I'm about to go look for this.”