OpenAI launches new agentic coding model only minutes after Anthropic drops its own
on monday, OpenAI launches CodexAn agentive coding tool marketed to software developers. Today, OpenAI also launched a new model designed to turbo-charge codecs: GPT-5.3 codec. The company says the model transforms Codex from an agent that can only “write and review code” to one that “developers and professionals can do almost anything on computers, expanding…