****GPT-5 Series/Spud Upcoming, GPT-5.4 Releases, Sora Shutdown, Superapp/Ads, Safety Fellowship, Benchmarks****

GPT-5.4 Pro tops benchmarks (+8.9% usage post-OpenClaw); GPT-5 medium vs Mistral; voice limits; Sora shutdown; Spud Q2 rumors; superapp GA; Fellowship details; Anthropic $30B ARR (Meta contract) pressures OpenAI.