[OpenAI Fully Launches GPT-6 for All ChatGPT Users Worldwide] According to Jinse Finance, on October 8, OpenAI fully launched GPT-6 for all ChatGPT free and paid users worldwide, officially replacing GPT-5.6 SOL and GPT-5.6 LUNA. GPT-6 integrates Astra security technology improvements, enhancing protections against abuse in areas such as cyber, biological, and violence-related fields.