This video compares ChatGPT, Claude and Perplexity AI for SEO and digital marketing workflows.Dennis Yu shows that Claude leads for execution because it runs longer workflows and handles complex, multi-step tasks without timing out. ChatGPT performs well for setup and interface usability, while Perplexity adds flexibility through model switching and file handling.Claude outperforms for SEO because it enables agent-based systems that continuously improve processes, which increases output and reduces manual work. Perplexity supports cost efficiency because it allows continued usage of models when limits are reached elsewhere.