The Unified Interface For Every Model

MultipleChat gives paid users access to the latest models ChatGPT Astra, Claude Fable 5.1, Gemini, Grok, and Perplexity Sonar Pro from one workspace. For images, MultipleChat also includes GPT Image, Stable Diffusion XL, Stable Diffusion 3, Leonardo, Ideogram, Recraft, Nano Banana, and Nano Banana Pro. You can switch models for different tasks, compare responses, use web-connected research, work with files, generate images, and choose the model that fits the job instead of opening separate subscriptions and tabs.

AI Collaboration lets multiple AI models work together instead of answering in isolation. You can assign roles, choose a collaboration mode, and let models draft, review, debate, fact-check, or synthesize one stronger answer. AI Team is the workflow that launches those models together and shows the result, including useful disagreements when the models see the problem differently.

AI disagreements happen when different models produce conflicting facts, assumptions, recommendations, or reasoning. MultipleChat surfaces those conflicts instead of hiding them, so you can see uncertainty, compare the logic, and decide which answer is better supported.

Yes. Open the Chat History page at multiplechat.ai/chat_history, click Import Chats, and upload a .json or .csv export. MultipleChat reads exports from MultipleChat, ChatGPT, Claude, and other AI platforms, and you can add several files at once (up to 10MB each). Only your conversations are imported — files, attachments, and provider settings are not. Keep Skip duplicate chats checked so the same chat is never added twice. Memory is separate: it is not imported automatically, so copy your old preferences or custom instructions and paste them into a new chat as context. For a full step-by-step walkthrough of exporting from ChatGPT or Claude and importing here, read the support article on importing chat history or memory.

MultipleChat AI Humanizer helps rewrite stiff or generic AI text into clearer, more natural writing while keeping the meaning. In MultipleChat, you can humanize text directly, use a built-in humanizing mode inside AI Collaboration, or create an AI Humanizer project with a style example file so the AI can learn your preferred tone and rewrite the remaining text to match it. Compared with basic AI humanizer tools, MultipleChat gives you more control because you can choose models, work with files, use project context, and combine humanizing with editing, review, and document workflows. The feature is meant for polishing your own writing, improving readability, and adapting tone. It should not be used to misrepresent authorship, evade rules, or cheat; use it responsibly and follow the rules of your school, workplace, or publication.

Yes. MultipleChat AI has a native iOS app for iPhone and iPad: Download MultipleChat AI on the App Store. It is also available for Android on Google Play: Download MultipleChat AI on Google Play. Use the same MultipleChat account on web and mobile so your subscription and workspace access stay connected.

MultipleChat uses Stripe for secure billing. Stripe is one of the world's leading payment infrastructure providers, used by businesses to process card payments, subscriptions, invoices, and receipts securely. For login and authentication, MultipleChat uses Firebase Authentication by Google, an enterprise identity platform used by companies and government organizations to manage secure sign-in, account access, and identity protection. This matters because billing and authentication are handled by specialized, trusted providers instead of custom-built payment or login systems. You can cancel anytime, there are no hidden fees, and you only pay for the subscription you choose.

Yes — MultipleChat AI Desktop for macOS and Windows is a separate product that runs entirely on your computer. Three key differences: it is BYOK — you bring your own API keys and use your own LLMs (OpenAI, Anthropic, Google and more, or fully local models via Ollama / LM Studio); it is a one-time $250 purchase with a free trial, not a subscription; and it may not include every web-app feature — in particular AI Collaboration, Compare Mode and the Studios stay web-only. Your chats, documents and keys never leave your machine.