Engineers at Microsoft are boosting infrastructure capacity in preparation for the latest iterations of OpenAI’s large language models, the first of which could be implemented by the end of February.

GPT-4.5 could arrive as soon as next week, as Microsoft gets ready to host OpenAI’s latest models.

Microsoft is preparing to host OpenAI's GPT-5 and GPT-4.5 models. GPT-4.5 may launch by next week and GPT-5 is likely to launch in late May.