OpenAI announced the launch of its Codex agentic coding tool and a new model called GPT-5.3 Codex. The company says the model expands Codex's abilities from simple code writing to handling nearly any developer task, can create complex games and apps from scratch, runs 25 percent faster than its predecessor, and was partially built using earlier versions of itself. The release follows a near‑simultaneous launch by Anthropic, which moved its release 15 minutes earlier, sparking a brief race to market. Leia mais →