The Ledger

Every statement that passed quotation and attribution checks. Mix any filter with any other: certainty 1/5, debate potential 5/5, or both at once.

clear all ✕

why aren't all 5 resolved? a statement only gets an assessment when the public record can support or contradict it. opinions and what-ifs never can, and 0 checkable ones are still open, waiting for their date. predictions held up or didn't; assertions are supported or contradicted. on every card: ▮▮▮▮▮ certainty · ▮▮▮▮▮ debate potential. speakers are clickable

Prediction Didn’t hold up
Swyx: OpenAI will always release both general and Codex model variants
“I'm pretty, like, have pretty high confidence that basically OpenAI will always release a GPT-V and a GPT-V codex.”
Shawn Wang Feb 19, 2026 ▶ 36:15 Inside AI’s $10B+ Capital Flywheel — Martin Casado & Sarah Wang of a16z
Assertion Supported
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.”
Brian Fioca Dec 26, 2025 ▶ 10:39 ⚡️GPT5-Codex-Max: Training Agents with Personality, Tools & Trust — Brian Fioca + Bill Chen, OpenAI
Assertion Supported
Lopopolo: Codex can run background builds while concurrently reviewing code
“It basically means that Codex is able to spawn commands in the background and then go continue to work while it waits for them to finish. So it can spawn an expensive build and then continue reviewing the code, for example.”
Ryan Lopopolo Apr 7, 2026 ▶ 7:19 Extreme Harness Engineering: 1M LOC, 1B toks/day, 0% human code or review — Ryan Lopopolo, OpenAI
Assertion Supported
Fioca: GPT-5.1 allows disabling preambles, unlike the reasoning-dependent Codex model
“So Five One, you can turn that off, you can prompt it not to do that, but the Codex model can't actually do that, and it relies on the reasoning summarizer to give you that update.”
Brian Fioca Dec 26, 2025 ▶ 11:26 ⚡️GPT5-Codex-Max: Training Agents with Personality, Tools & Trust — Brian Fioca + Bill Chen, OpenAI
Assertion Supported
Fioca: OpenAI Codex harness is open-source and the model is API-accessible
“Yes, that's open source, and the model is available in the API, so, so that's what they focus on.”
Brian Fioca Dec 26, 2025 ▶ 5:39 ⚡️GPT5-Codex-Max: Training Agents with Personality, Tools & Trust — Brian Fioca + Bill Chen, OpenAI
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