What Is GPT-5.6? OpenAI's Sol, Terra, and Luna Model Tiers Explained

GPT-5.6 comes in three tiers: Sol, Terra, and Luna. Learn what each model does, how they're priced, and who can access them right now.

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GPT-5.6 includes Sol, Terra, Luna, and ultra tiers with varied pricing and capabilities.

OpenAI’s GPT-5.6 ships as three models—Sol, Terra, and Luna. Here’s the pricing breakdown, programmatic tool calling, and how to pick the ri

OpenAI’s GPT-5.6 family includes capability tiers: Sol as the flagship model, Terra as the lower-cost option, and Luna as the fastest, lowes

OpenAI’s GPT-5.6 family includes capability tiers: Sol as the flagship model, Terra as the lower-cost option, and Luna as the fastest, lowes

More intelligence from every token, stronger performance per dollar, and more capability on demand for your hardest work.

More intelligence from every token, stronger performance per dollar, and more capability on demand for your hardest work.

More intelligence from every token, stronger performance per dollar, and more capability on demand for your hardest work.

OpenAI announces the release of its new GPT-5.6 family of models: Sol, Terra, and Luna, already being tested for diverse applications.

OpenAI has officially unveiled GPT-5.6, the latest generation of its artificial intelligence models. Rather than releasing a single model, t

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