OpenAI’s rapid iteration within the GPT-6 family drives current trader sentiment on the next Luna (6.1+) release, following the September 22 launch of GPT-6 Luna and Sol with 50% API price cuts and gains in alignment, coding accuracy, and factuality over GPT-5.6 versions. Luna targets high-volume, low-latency tasks at $0.10/$0.50 per million tokens, while Sol handles deeper reasoning; both build on GPT-6 Astra’s methods and compete directly with Anthropic’s Claude Opus 5.5. Subsequent GPT-6.1 Sol and Terra updates in late September and October signal continued point releases, with expanding ChatGPT access for free users and new API features like extended caching. Key upcoming catalysts include further benchmark disclosures, Chat integration, and potential rival responses that could accelerate or shift timelines for a qualifying 6.1+ Luna variant.