Introducing GPT-6 Sol and Luna

Reports, in time order

1. Primary sourceOpenAI·22 September 2026, 18:00 UTC
   Introducing GPT-6 Sol and Luna (opens OpenAI's report in a new tab)

   Our summary of this report

2. TechCrunch·22 September 2026, 18:00 UTC
   OpenAI launches GPT-6 Sol and Luna, boasting lower cost and fewer mistakes (opens TechCrunch's report in a new tab)
3. Decrypt·22 September 2026, 19:00 UTC
   OpenAI Launches GPT-6 Sol and Luna Minutes After Anthropic Drops Claude Opus 5.5 (opens Decrypt's report in a new tab)
4. MarkTechPost·23 September 2026, 05:18 UTC
   OpenAI Releases GPT-6 Sol and Luna: 50% Cheaper API Pricing and Benchmarks (opens MarkTechPost's report in a new tab)

   Our summary