OpenAILaunchAI ModelsAugust 6, 2026

OpenAI updates GPT-5.6 Sol and expands free access to Luna

GPT-5.6 Sol now powers both instant and deep reasoning in ChatGPT, while free users gain unlimited text chats with GPT-5.6 Luna. Plus and Pro users can now adjust reasoning effort via a new slider.

How this story unfolded

4 weeks · 16 reports · 37 community posts · 53 of 55 shown

Jul 12
- I read this as an admission that something is fundamentally wrong with GPT-5.6, and that the claim...
Jul 13
- What Is GPT-5.6 Sol, Terra, and Luna? OpenAI's Three-Tier Model System Explainedmindstudio.ai
- Another reset and a banked reset on top of that. Outstanding community work; kudos. OpenAI is...
Jul 20
- What Is Recursive Self-Improvement in AI? How GPT-5.6 Soul Post-Trained Lunamindstudio.ai
Jul 24
- Get started with OpenAI GPT-5.6 Sol, Terra, and Luna on Amazon Bedrockaws.amazon.com
Jul 27
- GPT-5.6 Terra & Luna are 50% off exclusively on OpenRouter!
Jul 28
Jul 29
- GPT-5.6 kernel of truth: Sol can cut its own costs, says OpenAIthenewstack.io
Jul 30
Jul 31
Aug 1
- Looks like 5.6 sol on cerebras already rolled out, but just for selected customers. I’m not one...
Aug 2
- Codex users: here's an amazing way to take advantage of the efficiency and capability of GPT-5.6...
Aug 5
- Why does ChatGPT still use 5.5 Instant as the main chat model?
Aug 6

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OpenAI updates GPT-5.6 Sol and expands free access to Luna

How this story unfolded

OpenAI by email

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