OpenAI Updates GPT-5.6 Sol, Adds Think Button for Free Users

OpenAI · x · 2026-08-07

OpenAI rolled out multiple updates: Plus and Pro users get the updated GPT-5.6 Sol for everyday chats alongside the new reasoning slider, while the version powering Work and Codex remains unchanged. Additionally, with the intelligence upgrade of GPT-5.6 Luna, Free and Go users can now use the “Think” button to trigger deeper reasoning for harder questions.

Related event: OpenAI Upgrades ChatGPT: Unified Model Experience and Unlimited Chat for Free Users(13 posts)→

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