OpenAI unveils GPT-5.6 Sol, Terra and Luna models — but only accessible to limited preview partners for now, per US Gov
OpenAI is announcing a limited preview of its next-generation GPT-5.6 model series today, introducing three distinct, capability-tiered models—Sol, Terra, and Luna—designed to re-engineer developer and enterprise workflows. OpenAI says the GPT-5.6 series improves upon its predecessors by offering superior token efficiency and enhanced reasoning, completing more complex tasks with significantly fewer resources, and i…
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