OpenAI launches GPT-5.4 across ChatGPT, API, and Codex with stronger reasoning, coding, and computer use capabilities.

OpenAI's new GPT-5.4 clobbers humans on pro-level work in tests - by 83% ...

A new JAMA study shows that a new Medicare billing code may have benefited specialists more than the primary care physicians it was designed to help most.

A new study published in JAMA found that a new Medicare add-on billing code boosted pay significantly for specialists. The study analyzed Medicare claims data from 2024, the first year that the G22111 ...

This week's second new model from OpenAI is built for more complex tasks than GPT-5.3 Instant.