OpenAI says GPT-6 Sol and Luna build on Astra’s alignment advances
OpenAI says GPT-6 Sol and Luna build on Astra’s advances in alignment and show improvements over their GPT-5.6 counterparts.
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OpenAI details GPT-6 rollout schedule and tier models across ChatGPT
OpenAI is rolling out GPT-6 with Intelligent UI globally to Plus, Pro, Business, and Enterprise users today, expanding to Free and Go tiers tomorrow. Paid tiers use GPT-6 Sol while Free and Go tiers use GPT-6 Luna, with updates confined to the Chat tab.
OpenAI rolls out GPT-6 and Intelligent UI in ChatGPT for everyone
OpenAI has started rolling out GPT-6 and Intelligent UI to all ChatGPT users, adding visual responses and task-specific interactive tools.
OpenAI says GPT-6.1 Sol improves alignment versus GPT-6 Sol
OpenAI says GPT-6.1 Sol shows major gains over GPT-6 Sol in its alignment evaluations and is closer to GPT-6 Astra on transparency, user intent, and safety constraints.
ChatGPT Voice can now use plugins, GPT-6 models, and ChatGPT Work
OpenAI says ChatGPT Voice can use plugins such as email, calendar, and Slack, run on GPT-6 Astra, Sol, and Luna, and work in ChatGPT Work on the web and mobile. The update is rolling out globally today in the latest version of the app.
GPT-6 Sol and Luna roll out in ChatGPT Work, Codex, and the API
On September 22, 2026, Plus, Pro, Business, Enterprise, and Edu users get both models in ChatGPT Work and Codex, and both are available in the API. Free and Go users can try GPT-6 Luna in the desktop app.