OpenAI launches GPT-5.6 family with Sol, Terra, and Luna models for general availability
OpenAI is launching the GPT-5.6 family of models for general availability, featuring three tiers: Sol (flagship frontier model), Terra (balanced everyday model), and Luna (cost-efficient model). The GPT-5.6 Sol sets new state-of-the-art results across coding, knowledge work, cybersecurity, and science, achieving stronger performance per dollar than previous and competing frontier models by using fewer tokens at lower estimated cost.
Key quotes
GPT‑5.6 Sol sets a new standard for both intelligence and efficiency, achieving state-of-the-art results across coding, knowledge work, cybersecurity, and science
Stronger performance per dollar: more successful work for the same spend, or comparable results at lower estimated cost
More intelligence from every token, stronger performance per dollar, and more capability on demand for your hardest work
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