OpenAI’s new frontier models mark a huge change in how AI will be built

The GPT-5.3 and 5.4 models represent a different approach, hinting at a major change in how major AI firms build their tech.

OpenAI launches GPT-5.4 with native computer use mode, financial plugins for Microsoft Excel, Google Sheets

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

OpenAI releases GPT-5.4 mini and nano, its ‘most capable small models yet’

OpenAI continues to ship new models with the release of GPT-5.4 mini and nano, its “most capable small models yet.” ChatGPT users can start using GPT-5.4 mini today. These flavors of GPT-5.4 are designed to be fast and efficient for high-volume workloads, according to OpenAI.