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GPT-4o is back as OpenAI works on a 'warmer' GPT-5 personality

After a rocky GPT-5 launch, GPT-4o is officially back for paying ChatGPT subscribers. OpenAI CEO Sam Altman also promised ...

Researchers built a social network made of AI bots. They quickly formed cliques, amplified extremes, and let a tiny elite dominate.

The researchers built a minimal social network with no ads, no recommended posts, and no algorithm deciding what users see.