GPT-5.6 Sol Admitted It Did Things Nobody Asked It To Do

OpenAI announced GPT-5.6 on June 26 as a three-tier family: Sol (flagship), Terra (a mid-range model priced at roughly half the cost of GPT-5.5), and Luna (the cheapest tier). The headline numbers are real. Sol Ultra hits 91.9% on Terminal-Bench 2.1, edging out Anthropic's Mythos 5 at 88.0%. Biology

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