Prompt vidéo promotionnel GPT-6 Astra

Check OpenAI's official X account and announcements, collect official videos and demos of `GPT-6 Astra` and related technologies, and edit them into a 1-minute cinematic promotional video. At the beginning, include a motion graphic of a beautiful nebula like Andromeda rotating, with stars and dust converging to form the text "GPT-6 Astra". In the main segment, carefully select the confirmed key features, use cases, and related announcements, presenting them with collages, smooth transitions, beautiful effects, concise subtitles, and music-synced editing. End with the nebula and title, keeping the total duration within 60 seconds.