Independent · First-party verifiedChatGPT, as it evolves
The Transformer Times
WHAT CHANGED IN CHATGPT.
Latest developments
Models · Available

GPT-6 Sol and Luna arrive in Work and Codex

Work and Codex add GPT-6 Sol and GPT-6 Luna as selectable models, separate from those available in regular Chat.

Rollout & details

Available models and reasoning levels depend on the account and workspace. GPT-6.1 Sol is a distinct later rollout on September 29.

VERIFICATION

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This report summarizes OpenAI’s published information. Availability may change after this entry’s date.

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