OpenAI launches GPT-5.6 Luna and Sol in ChatGPT
GPT-5.6 Luna now powers unlimited text chats for Free and Go users, with a new "Think" button for harder questions. Plus and Pro users get GPT-5.6 Sol for Instant and deep reasoning, delivering more factual, focused responses.
How this story unfolded
4 weeks · 4 reports · 6 community posts · from Jul 30
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