PromptsZone

PromptsZone is a browser extension, available for Chrome and Microsoft Edge, that runs several AI chatbots side by side in one interface. Its "Side-by-Side AI Comparison" design lets a user open ChatGPT, Gemini, Claude, xAI's chatbot, and DeepSeek together instead of switching between separate browser tabs, with a "type once, send to all" feature that synchronizes a single prompt across every active model at once. The extension also distributes uploaded files across the connected AI services simultaneously, so a document or image only needs to be attached once to be tested against multiple models. It runs from a browser sidebar or popup rather than a standalone app, keeping it close at hand while browsing other sites. The stated goal is to let users compare and verify answers across models without repetitive copy-pasting, which is useful for spotting where models disagree or for picking the best response among several. PromptsZone is free to start, according to the site's call to action, though no separate paid tier is described. No company name or founding year is published on the site. One limitation: because it depends on each underlying chatbot's own web interface, it inherits the usage limits, login requirements, and rate limits of ChatGPT, Gemini, Claude, xAI, and DeepSeek individually.