OpenAI just launched GPT 5.4 mini and nano models which are now live in the API, Codex, and ChatGPT with improved coding capabilities.
OpenAI has introduced GPT-5-Codex-Mini, a cost-efficient model offering 4x the usage with only a minor drop in performance. Back in September, OpenAI announced GPT-5-Codex, a new GPT-5 model that is ...