Rebecca Bellan / TechCrunch:OpenAI announces API updates, including GPT-5 Pro, Sora 2 in preview, and gpt-realtime-mini, a voice model that is 70% cheaper than gpt-realtime — OpenAI unveiled new API updates at its Dev Day on Monday, introducing GPT-5 Pro, its latest language model, its new video generation model Sora 2, and a smaller, cheaper voice model.