OpenAI releases next-generation programming model: GPT-5.3-Codex

OpenAI has launched its next-generation programming model, GPT-5.3-Codex, claiming it to be the world's most powerful intelligent agent programming model. The model achieved state-of-the-art (SOTA) scores in SWE-Bench Pro and Terminal-Bench 2.0 tests, with a programming score 11.9% higher than Claude Opus 4.6. It possesses debugging, deployment, and office software operation capabilities, with a 25% speed improvement, and can participate in its own development and optimization.