OpenAI previews GPT-5.6 series with Sol, Terra, and Luna models, featuring enhanced safety measures
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minimaxir
Summary
OpenAI is previewing the GPT-5.6 series, which includes three models: Sol (flagship), Terra (balanced/everyday work), and Luna (fast/affordable). Terra matches GPT-5.5 performance at half the cost, while Luna offers strong capability at the lowest price point. The GPT-5.6 Sol launch features OpenAI's most robust safety stack to date, with enhanced protections for high-risk activities, sensitive cyber requests, and repeated misuse, following extensive pressure-testing and hardening against real-world attacks. The company emphasizes its commitment to broad access.
Source
Hacker NewsOpenAI previews GPT-5.6 series with Sol, Terra, and Luna models, featuring enhanced safety measuresopenai.comKey quotes
· 4 pulledGPT‑5.6 Sol launches with our most robust safety stack to date.
We strengthened protections for higher-risk activity, sensitive cyber requests, and repeated misuse, and spent multiple weeks finding weaknesses, pressure-testing our system, and hardening it against real-world attacks.
We believe in broad access, and
Terra has competitive performance to GPT‑5.5 while being 2x cheaper and Luna brings strong capability at our lowest cost.
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