# GPT-6 Sol and Luna launch with API prices 50% lower than GPT-5.6

OpenAI Developers said on September 22, 2026, that both models were launching that day, with API prices 50% lower than GPT-5.6.

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Source: OpenAI Developers · Published 9/22/2026, 11:23:37

OpenAI Developers said GPT-6 Sol and Luna launched on September 22, 2026, with API prices for both models 50% lower than GPT-5.6.

Tags: OpenAI, GPT-6, API pricing

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