OpenAI launches GPT-6 Sol and GPT-6 Luna with lower API pricing

OpenAI has launched GPT-6 Sol and GPT-6 Luna, with API pricing reportedly 50% lower than its GPT-5.6 models.
Lower inference costs could make advanced AI models more economical for developers and businesses deploying AI at scale, potentially accelerating adoption across software and enterprise applications.
The launch also increases competitive pressure across the frontier AI market as providers compete on both model capabilities and deployment costs.