Introducing GPT-6 Sol and Luna

Summary

OpenAI introduced GPT-6 Sol and GPT-6 Luna, two lower-cost models alongside GPT-6 Astra, trained with similar methods to bring Astra's professional work, factuality, coding and alignment gains to faster, cheaper tiers. API prices for Sol and Luna fall 50% compared with their GPT-5.6 promotional pricing, with Sol at $2 input and $10 output per million tokens and Luna at $0.10 and $0.50. OpenAI reports that Sol at xhigh effort scores 33.2% on AutomationBench 1.0.6 at $0.27 per task, and that Sol makes about half as many factual mistakes as its predecessor.

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