Models & Releases

OpenAI expands GPT-5.6 Luna to free users, boosts Sol accuracy

Sol gets better accuracy; Luna now free for unlimited everyday chats.

Deep Dive

Key Points
  • GPT-5.6 Sol gains better accuracy and consistency in ChatGPT; GPT-5.6 Luna free for unlimited everyday chats.
  • OpenAI cut GPT-5.6 Luna and Terra pricing to improve price-performance for enterprise AI workflows.
  • OpenAI shared Astra cybersecurity evaluations, ten math/theory advances, and a 353,000-person Kaggle AI course.
  • OpenAI-powered telco Circles saw ARPU +22% and churn -9% using the OpenAI API and Codex.

Why It Matters

OpenAI's model upgrades and free-tier expansion put frontier AI in more hands while cutting enterprise costs.

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