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.

The updates were part of a series of announcements geared towards wooing developers to OpenAI’s ecosystem, including the launch of an agent-building tool and the ability to build apps in ChatGPT .

The addition of GPT-5 Pro might appeal to developers building applications in finance, legal, and healthcare – industries that need “high accuracy and depth of reasoning,” per OpenAI CEO Sam Altman.

Altman also noted that voice capabilities will be essential in the future as it quickly becomes one of the primary ways people use to interact with AI. To that end, OpenAI is launching “gpt-realtime mini,” a

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