This n8n workflow automates the process of creating and posting engaging Instagram reels by integrating AI, video generation, and social media publishing tools. It begins with triggering on a chat message, then uses GPT-5 to craft a detailed video prompt based on user input. This prompt is sent to Veo-3 via Wavespeed API to generate a cinematic short video. After waiting for the video to be processed, the workflow retrieves the video URL, downloads it, and uploads it to Postiz for social media posting. Concurrently, GPT-5 writes an impactful caption aligned with the video. Finally, the workflow automatically posts the video with its caption directly to Instagram, enabling creators and brands to produce high-quality reels at scale with minimal manual effort. This setup is ideal for content creators, marketing teams, and social media managers aiming to streamline video content production and maximize engagement.