OpenAI Launches GPT-5.6: Unlimited Free Text, 68% Fewer Factual Errors
xiaohu · x · 2026-08-07
OpenAI officially announced updates for the GPT-5.6 model. Key highlights include:
- Default Model Upgrade: Free and Go users now get GPT-5.6 Luna as the default, offering unlimited free text chat.
- Optimized Tone: The GPT-5.6 Sol version provides more direct answers with less fluff and fewer redundant details.
- Improved Accuracy: Factual error rates in complex domains like finance, healthcare, and law dropped by 68% compared to GPT-5.5.
- Adjustable Thinking Depth: A new slider on web and mobile lets users toggle between fast replies and deep reasoning for coding or complex decisions. A "Think" button is also rolling out to free users.
- Enhanced Teen Safety: Safety fine-tuning for users under 18 prohibits romantic role-play and tightens filters on self-harm and extreme content.
Related event: OpenAI Upgrades ChatGPT: Unlimited Free Chat and Unified Model Experience(17 posts)→
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