AI Breakthroughs, Billion-Dollar Bets & Backlash – The Global AI News Roundup (Aug 11–12, 2025)
OpenAI released GPT-5 on August 7, 2025, but by August 11 users reported sluggish responses and a less personal feel, prompting Sam Altman to admit the rollout was bumpy and to keep GPT-4 available for paying users while fixes are rolled out. OpenAI released GPT-OSS models with 20 billion and 120 billion parameters, the first freely downloadable large language models since 2019, available via AWS and excelling at coding, science, and math. Caltech researchers used reinforcement learning with a two-agent system called “player” and “observer” to crack the 60-year Andrews–Curtis Conjecture, showing AI can find solutions to long-standing group-theory problems.