Pre-Training GPT-4.5
Why the open web links it
Sam Altman discusses the development and pre-training of GPT-4.5 with key OpenAI researchers.
Linked by 18 independent sites, 5 of them widely read in the 2026-10 crawl of the open web, including sap.com, aljazeera.net, lesswrong.com, gwern.net, semianalysis.com.