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