⚡️GPT5-Codex-Max: Training Agents with Personality, Tools & Trust — Brian Fioca + Bill Chen, OpenAI
Source
youtube.com
Author
Latent Space
Date
Why it matters
Gives first-party insight into how OpenAI trains Codex models for long-running work, tool useA model's ability to call external functions — run code, search the web, edit files — instead of only generating text.Full definition → and trust, which affects how engineers configure and rely on coding agents.
Terms in this piece · Glossary
AI agent — An AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.
tool use — A model's ability to call external functions — run code, search the web, edit files — instead of only generating text.
videoWhy Every Agent needs Open Source Cloud Sandboxes
videoTerminal-Bench 2.0: the most impt coding agent benchmark of 2025 gets a v2! Launch + Q&A w/ founders
video[State of Post-Training] From GPT-4.1 to 5.1: RLVR, Agent & Token Efficiency — Josh McGrath, OpenAI
video⚡️ Reverse Engineering OpenAI's Training Data — Pratyush Maini, Datology
