OpenAI launches GPT-6 Sol and Luna, boasting lower cost and fewer mistakes
OpenAI says GPT-6 Sol and Luna will cost half as much as the GPT-5.6 Sol and Luna models via caching and inference improvements, while GPT-6 Sol makes about half as many mistakes on OpenAI’s internal factuality evaluation and has a lower coding error rate.
Sep 22, 2026 ·
TechCrunch

















