OpenAI just dropped a Cursor competitor?

OpenAI launched Codex, a comprehensive AI coding platform that competes with Cursor by offering IDE extensions, cloud-to-local environment switching, GitHub code review integration, and a rebuilt CLI in Rust. The service works across multiple editors (VS Code, Cursor, WindSurf) and includes background agents that can file pull requests automatically. Testing shows it can successfully build complete applications like an AI image generator with database persistence, though the UI has various bugs and the cloud-to-PR workflow has reliability issues. The platform offers different usage tiers ($20-200/month) with varying message limits, positioning itself as an all-in-one solution for developers already using ChatGPT.