GPT-5.3-Codex Claims Self-Assistance, Sparking AI Hype but Not Self-Replication

TL;DR Summary
OpenAI introduced GPT-5.3-Codex, a faster coding model that the company says helped accelerate its own development by debugging training, managing deployment, and evaluating results; experts caution that it's AI-assisted human work rather than autonomous self-improvement, as hype around self-building AI persists.
- OpenAI’s Latest AI Was Created Using “Itself,” Company Claims Futurism
- Introducing GPT-5.3-Codex OpenAI
- ‘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 Fortune
- OpenAI says new coding model helped build itself NBC News
- OpenAI launches new agentic coding model only minutes after Anthropic drops its own TechCrunch
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