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OpenAI
Improving GPT-5.6 Sol in ChatGPT—and expanding access for free users
OpenAI has released significant updates to ChatGPT, introducing GPT-5.6 Sol for Plus and Pro users, aimed at enhancing the reliability of answers and providing a more focused conversational experience. A new slider feature allows users to adjust the depth of responses based on needs. Free users are upgraded to GPT-5.6 Luna, promoting broader accessibility with unlimited text chat support. The improvements focus on factual accuracy and a consistent tone across different interaction styles.
Act nowConfidence: HighShort term horizon
Published 6 Aug 2026, 17:15 UTC3 min read
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Summary
TL;DR
- GPT-5.6 Sol enhances fact reliability and response focus for Plus and Pro users.
- Free users will access GPT-5.6 Luna, featuring unlimited chat.
- New slider allows customization of answer depth in ChatGPT.
- Reduction in factual errors by up to 68% compared to previous versions.
- Focus on age-appropriate content and safety measures for teen users.
Interesting facts
- Internal evaluations show substantial decreases in factual inaccuracies.
- The GPT-5.6 updates cater to both casual and in-depth user needs.
- Improvements focus on factual details in sensitive areas like finance and health.