Paid plans got the model on 7 October, free users a day later. OpenAI says the rollout is global.
Google unveiled Gemini 4 Argon on 30 September. Security teams get it first, then paid API customers and AI Ultra subscribers, at $2 per million input tokens.
Meta Muse is a personal AI agent that books travel, sends email and buys things for the user. Meta launched it on 8 September in the United States.
Optimizely has launched five AI helpers that each have a job description and run on a timetable. It also released AI models built just for marketing and a public test it says beats general-purpose tools.
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