Please welcome GPT-6 Sol and GPT-6 Luna to the GPT-6 universe.
GPT-6 Sol and Luna build on the advances behind GPT-6 Astra, bringing much of its strengths into faster and more affordable models to support work at scale.
We’ve also made caching and inference more efficient, and we’re passing the savings directly to you: 50% lower API prices for Sol and Luna compared with GPT‑5.6 promotional pricing.
OpenAI
@OpenAI
Higher usage limits and lower cost give you more flexibility and room to iterate.
6:12 PM UTC · Sep 22, 2026 · 525.2K Views
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OpenAI
@OpenAI
GPT‑6 Sol and Luna build on Astra’s advances in alignment, showing improvements over their GPT-5.6 counterparts.
6:12 PM UTC · Sep 22, 2026 · 381.2K Views
25592.3K84
OpenAI
@OpenAI
GPT-6 Sol and Luna roll out today in ChatGPT Work and Codex for Plus, Pro, Business, Enterprise, and Edu users.
Both are also available in the API. Free and Go users can try GPT-6 Luna in the desktop app.
openai.com/index/introduc…
Both are also available in the API. Free and Go users can try GPT-6 Luna in the desktop app.
openai.com/index/introduc…
6:12 PM UTC · Sep 22, 2026 · 536K Views
1051272.5K187