GPT-5.6 SolGPT-5.6 TerraGPT-5.6 Lunaopenai-comparisonartificial-intelligenceGPT-5.6 pricingopenai-models
GPT-5.6 Sol vs Terra vs Luna: Complete Comparison β Which One Should You Pick?
Head-to-head comparison of OpenAI's three GPT-5.6 models β Sol the flagship, Terra the balanced, Luna the cost king. Performance, pricing, benchmarks, and practical pick for your project.
2026-07-13 8 min read