Sam Altman lays out roadmap for OpenAI’s long-awaited GPT-5 model

GPT-4.5 will arrive in "weeks," then GPT-5 will meld conventional LLMs and reasoning models.

https://arstechnica.com/ai/2025/02/sam-altman-lays-out-roadmap-for-openais-long-awaited-gpt-5-model/