GPT-6 Sol Luna Release是這篇文章討論的核心
On **September 22, 2026**, [OI] announced two new GPT-6 models: **GPT-6 Sol** and **GPT-6 Luna**. Both are positioned as lower-cost, production-ready versions that bring many of the advances from GPT-6 Astra to everyday work and high-volume AI applications.

## Key highlights

– **Launch date:** September 22, 2026
– **Pricing (per million tokens):**
– **GPT-6 Sol:** $2 input / $10 output
– **GPT-6 Luna:** $0.10 input / $0.50 output
– **Cost reduction:** Roughly **50% lower** than the previous GPT-5.6 Sol/Luna generation
– **Performance (AA index):**
– GPT-6 Sol: **48**
– GPT-6 Luna: **37**
– **Improvements:** Better factuality, fewer operational errors (especially for Sol), and efficiency gains attributed to caching and inference optimizations
– **Target use cases:** Everyday work (Sol) and high-volume AI applications (Luna)
– **Competitive context:** The launch positions [OI] against Anthropic; some observers note that Anthropic’s Opus 5.5 had already reset the comparison, and direct head-to-head benchmarks were not yet available at launch.

## About [OI]

[OI] is an American artificial intelligence public benefit corporation headquartered in San Francisco. It is best known for the GPT series of large language models and ChatGPT, and as of September 2026 it is one of the most valuable AI pure-play companies in the world.

*Image: Google DeepMind / Pexels*

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