Record Closing Highs, GPT-5 Unleashed, and a $500 Billion Surprise – Business News Roundup (Aug 9–10, 2025)
The Nasdaq Composite notched its 18th record closing high of 2025. OpenAI released GPT-5 on August 7, billed as the “smartest, fastest, most useful” model, now available to 700 million ChatGPT users,