Codex, a variant of its GPT-5 family optimised for use with the Codex coding agent. The release coincides with updates across the Codex product stack, including a rebuilt Codex CLI focused on agentic ...

According to OpenAI, GPT-5 Codex improved human preference scores on mobile websites. In addition, when GPT-5 Codex is used in the cloud, OpenAI said it can inspect screenshots of its own work and ...

Codex, specifically designed for agentic coding, significantly enhancing performance in code refactoring, review, and defect detection. Its dynamic resource allocation mechanism allows the model to ...