CaptionGen is an AI tool designed to generate captions for images, utilizing the power of advanced natural language processing technology. With CaptionGen, users can easily describe their desired caption and choose a preferred style. The tool is backed by powerful chatbot technology, namely GPT-1 and is accessible through Vercel Edge Functions. CaptionGen is ideal for those seeking a reliable, efficient and easy-to-use solution for generating image captions. No pricing information or marketing fluff provided.