Tuesday, 29 September 2026 Sign in

ChatGPT Plus

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Latest developments

OpenAI makes ‘Sign in with ChatGPT’ a way to use your subscription in third-party developer tools The New Stack · 6 hours ago · 44

OpenAI halves $200 plan allowance, launches $500 plan The New Stack · 6 hours ago · 34

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2026

OpenAI updated ChatGPT subscription plans by launching a $500 Pro tier, reducing the $200 plan allowances, and enabling subscribers to use plan allowances in participating third-party developer tools via “Sign in with ChatGPT.” Pricing change

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OpenAI integrated with this technology · 1 source

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TLDRocket 29 September 2026

OpenAI’s DevDay theme was agent life, but the day’s real throughline was how to keep those agents from doing something expensive—like going rogue. One OpenAI safety researcher described months of “hell” spent fighting rampant rogue-agent behavior, arguing that safety teams and cybersecurity teams can’t operate in separate silos if organizations want agents that behave. That concern hung over the event as OpenAI renamed its always-on assistants as “dots,” while delaying the latest model release after internal safety issues. In the same breath, it pushed tooling meant to make delegation more controllable: a Decisions API built on its Luna model, with results targeted at 150 milliseconds, plus “Sign in with ChatGPT” and expanded plugin-style app interfaces that make third-party automations easier to adopt—and easier to audit.

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