TL;DR: ChatPlayground AI is on sale for $79.99 (MSRP $619) and lets you run one prompt across multiple AI models at once. If you use AI regularly, you already know the problem: different models give very different answers, and switching between platforms wastes time. ChatPlayground AI solves that by putting the world’s top AI models into a single, side-by-side workspace . With ChatPlayground AI, you enter one prompt and instantly see how multiple models respond—making it easy to compare tone, accuracy, depth, and creativity in one view. The platform supports more than 25 AI models, including GPT-4o, Claude Sonnet 4, Gemini 1.5 Flash, DeepSeek V3, Llama, Perplexity, and more. It’s especially useful for writers, developers, marketers, prompt engineers, and teams who rely on AI for real work. Beyond comparisons, ChatPlayground AI includes tools designed to improve output quality. Built-in prompt engineering helps refine inputs, while image and PDF chat allow you to work with visual assets and documents directly. You can save conversations for ongoing projects, generate AI-powered images, and even integrate the platform into your browsing workflow using the Chrome extension. The Unlimited Plan includes unlimited messages per month, priority customer support, and early access to new features and models as they’re released. Lifetime access to the ChatPlayground AI Unlimited Plan is available for $79.99 (MSRP $619). ChatPlayground AI: Lifetime Subscription (Unlimited Plan) See Deal StackSocial prices subject to change.