{"type": "article", "title": "What Is GPT-5.6 Soul, Terra, and Luna? OpenAI's Three-Tier Model System Explained", "publisher": "Web Pulse", "url": "https://wpnews.pro/news/what-is-gpt-5-6-soul-terra-and-luna-openai-s-three-tier-model-system-explained", "original_source": "https://www.mindstudio.ai/blog/what-is-gpt-5-6-soul-terra-luna-explained-2/", "published": "2026-07-10T00:00:00+00:00", "accessed": "2026-07-10", "id": "what-is-gpt-5-6-soul-terra-and-luna-openai-s-three-tier-model-system-explained"}