ReplAI is a browser extension that utilizes the GPT-3 model from OpenAI to quickly generate draft messages, emails, or other text for business purposes. With its AI-powered capabilities, ReplAI can initiate and reply to conversations with specific sentiments and tones, making it useful for saving time and avoiding awkward interactions. It even integrates with platforms like GMail and WhatsApp Web to automatically write response messages. The tool is easy to use, cost-effective, and offers a strong feature set, according to user testimonials. ReplAI is safe and legal to use, as it utilizes the OpenAI GPT-3 model API. The tool stores only usage data, such as tokens and generated characters, for easy issue escalation, and does not store browser history or personal messages. While ReplAI currently focuses on browser extensions, a web playground is being developed for mobile and non-chromium-based browsers. ReplAI offers a trial period with 666 free tokens, and the pricing starts at $0 with no credit card required.