The usual test we use is: are the two links different enough to support substantively different discussion? In this case the answer is no, so in that sense they're the same topic.
Another way of putting it is: how much energy would it take to keep the one thread just about the article and the other thread just about the livestream?
Livestream link: https://openai.com/gpt-5/
sama livetweets: https://x.com/sama/status/1953502614676811865
Research blog post: https://openai.com/index/introducing-gpt-5/
Developer blog post: https://openai.com/index/introducing-gpt-5-for-developers
Enterprise blog post: https://openai.com/index/gpt-5-new-era-of-work
GPT-5 landing page: https://openai.com/gpt-5/
System Card: https://openai.com/index/gpt-5-system-card/
What would you say if you could talk to a future OpenAI model? https://progress.openai.com/
coding examples: https://openai.github.io/gpt-5-coding-examples/
