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Large Language ModelsAudio & SpeechTHE DECODERPublished: Sep 24, 2026, 04:00 JST

ChatGPT Voice taps GPT-6 Astra, Sol, Luna for email, Slack

ChatGPT Voice taps GPT-6 Astra, Sol, Luna for email, Slack

3 Key Points

  1. What happened

    ChatGPT Voice now runs on OpenAI's new GPT-6 Astra, Sol, and Luna models and can access plugins like email, calendar, and Slack for the first time, letting users send emails, manage appointments, or build a website by voice.

  2. Why it matters

    The globally available voice feature can now handle everyday tasks directly by voice, such as spotting and canceling duplicate charges in finance apps or building a website with a checkout page, a step beyond simple conversation.

  3. What to watch

    Voice also works in ChatGPT Work on web and mobile, where users can create documents, presentations, and spreadsheets just by talking, and it is available now in the latest app version; whether this changes how people use computers may hinge on how the approach's risks are handled.

WHO IT HITSEveryday ChatGPT users who already use the voice feature on their phones and desktops, and knowledge workers using ChatGPT Work, will be able to trigger email, calendar, and Slack actions by speaking rather than typing. The finance-app scenario in the demo suggests the feature may also reach people managing expenses or subscriptions by voice.

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Context & Analysis

The update moves ChatGPT Voice from a conversational feature into something closer to an assistant that can act on the user's behalf. OpenAI's demo video shows weather lookups and online shopping, but the more consequential examples are calendar lookups, sending emails, spotting duplicate charges in finance apps, and building a website with a checkout page. In other words, the voice feature is being pointed at tasks that previously required switching between apps and typing.

The same capabilities extend into ChatGPT Work on web and mobile, where users can create documents, presentations, and spreadsheets just by talking. That places the upgrade in two settings at once: personal use on phones and work use on desktops, both tied to the latest app version.

OpenAI frames the direction as a step toward the everyday AI assistant from the film "Her," which CEO Sam Altman cited as a reference when the first ChatGPT Voice version launched in 2024. The company says it sees the potential to change how people use computers, but also acknowledges the approach comes with risks. Whether the feature lives up to that ambition may hinge on how those risks are managed, and on whether users trust a voice assistant with access to their email, calendar, and Slack.

FAQ
What models does ChatGPT Voice now use?
ChatGPT Voice now runs on OpenAI's new GPT-6 Astra, Sol, and Luna models.
What can ChatGPT Voice do with email, calendar, and Slack?
It can look up calendar events, send emails, and access those plugins for the first time. The demo also shows spotting and canceling duplicate charges in finance apps and building a website with a checkout page.
Where is the upgraded ChatGPT Voice available?
The globally available voice feature is available now in the latest app version, and voice also works in ChatGPT Work on web and mobile.

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