GPT-5.3-Codex Launches: OpenAI’s Fastest AI Coding Agent Sets New Benchmark Records
OpenAI has announced GPT-5.3-Codex, its most advanced code-focused agent to date. According to the company, the new model is 25% faster than GPT-5.2-Codex and has achieved record-level accuracy on the SWE-bench Pro and Terminal-Bench 2.0 benchmarks. Designed …
OpenAIhas announced GPT-5.3-Codex, its most advanced code-focused agent to date. According to the company, the new model is 25% faster than GPT-5.2-Codex and has achieved record-level accuracy on the… [+1970 chars]