OpenAI has launched Codex for Open Source, offering maintainers six months of free ChatGPT Pro and API credits amid a surge of AI-generated pull requests.

The big headlines on this release are efficiency, with OpenAI reporting that GPT-5.4 uses far fewer tokens (47% fewer on some ...

OpenAI Group PBC today launched a new large language model that it says is more adept at automating work tasks than its earlier algorithms. GPT-5.4 is available in ChatGPT, the Codex programming tool ...

GPT-5.1 speeds up coding with adaptive and no-reasoning modes. New prompt caching cuts API costs for embedded app developers. New tools make AI agents more capable inside modern IDEs. OpenAI is back ...