OpenAI releases GPT-5.3-Codex, a coding model that helped build itself MashableIntroducing GPT-5.3-Codex OpenAIWith GPT-5.3-Codex, OpenAI pitches Codex for more than just writing code Ars Technica‘I felt a little useless, and it was sad’: Sam Altman feels obsolete using his own AI tools—and he’s not the only one FortuneAgent-Driven Development – Two Paths, One Future The Futurum Group