Story
Improving GPT‑5.6 Sol in ChatGPT, expanding GPT‑5.6 Luna access for free users
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Overview
Updates to ChatGPT enhance GPT-5.6 Sol for Plus and Pro users, improving reliability with facts and focus in responses. A new slider feature allows users to adjust the level of thought ChatGPT invests in each answer, while access to GPT-5.6 Luna is expanded for free users.
Summary from openai.com.
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Community reactions
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Hacker News · openai.com
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Based on 5 sampled comments from this thread. Analyzed 2026-08-07.
- Praise: Free unlimited Luna is a pretty badass move — giving more users access to a top-tier model is a game changer.
- Praise: Going from 5.5 Instant to 5.6 Luna is a big jump, and it’s a win for users who need better performance.
- Praise: Any improvement to the ChatGPT free plan is really nice — many people haven't experienced a state-of-the-art model yet.
- Praise: The broad access to reasoning for free users could reshape how we interact with AI, making it more accessible and impactful.
- Concern: The myriad of reasoning levels is confusing, leaving users unsure about which model to choose for their needs.
- Concern: Commenters worry that the reasoning button's removal indicates a lack of clarity in OpenAI's model offerings.
- Concern: Some believe the free tier models are not truly competitive, raising concerns about the quality of AI interactions for non-paying users.
- Concern: There's skepticism about the implications of calling these models AGI, with doubts about their actual capabilities compared to human intelligence.