One workspace for the top AI models.

• Usage:
  Pro users: on average, about 120 messages per day across all models.
  Smart users: around 250 messages per day across all models.
  Free Forever users: usually about 15 messages per day via legacy models, with almost no free file uploads.
  Users without signup: typically 1 to 5 messages per day, no file uploads.
• Methodology: These estimates are based on real usage data from the past three months (May 2026 to July 2026) and may vary depending on file uploads, file size, selected models, the amount of context included in each conversation, and overall usage patterns.
• Exact token amounts: We cannot publish exact token allocations per user because model API pricing changes frequently, and we are committed to giving users access to the latest models. For example, if Claude releases a new model that is twice as expensive, we may not be able to offer the same usage volume for that model. However, we believe that as the AI landscape evolves and competition increases, prices may trend lower over the long term rather than higher.

• Usage:
  Pro users: on average, about 120 messages per day across all models.
  Smart users: around 250 messages per day across all models.
• Methodology: These estimates are based on real usage data from the past three months (May 2026 to July 2026) and may vary depending on file uploads, file size, selected models, the amount of context included in each conversation, and overall usage patterns.
• Exact token amounts: We cannot publish exact token allocations per user because model API pricing changes frequently, and we are committed to giving users access to the latest models. For example, if Claude releases a new model that is twice as expensive, usage volume can change. We update plans around real model costs and customer usage.

Studios have their own usage limits and token allocation. Your normal chat usage and Studio usage are separate, so paid users get normal model usage plus extra Studio usage for larger documents, presentations, spreadsheets, and images. Studio capacity can still vary by file size, selected model, output length, and workflow complexity.

MultipleChat gives paid users access to the latest models ChatGPT, Claude, Gemini, Grok, and Perplexity Sonar Pro from one workspace. For images, MultipleChat also includes DALL-E 3, SDXL, SD3, 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.

No. ChatGPT usage is included in your paid MultipleChat subscription. You do not need to bring your own ChatGPT API key, maintain a separate ChatGPT subscription, or buy an additional ChatGPT package to use ChatGPT through MultipleChat.

Yes. We are committed to giving users access to the latest meaningful advancements in AI. Our company has been in business since 2019, and MultipleChat has provided access to the latest AI models since July 2023. We may not always be as frontier as OpenAI, Anthropic, or other model labs, and there can be a delay before every new advancement reaches users. But we upgrade MultipleChat and add new features constantly. We evaluate the best models and AI tools, test them with our team, and integrate the ones that have proven themselves useful. MultipleChat does not develop its own AI models. We believe that over the long term, giving users the best interface and the best AI tools in one subscription will win over developing the latest model.

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.

AI Collaboration brings multiple models into the task to produce or compare answers. Team Reason is more focused: it reads the conversation or response and gives a deeper expert-style critique from a long-term and different perspective. It is designed to reveal blind spots, structural flaws, hidden assumptions, and risks that a fast standard AI answer may miss. Compared with chatting to one model in a single-provider app like ChatGPT or Claude, MultipleChat can bring other models into the conversation even if you started with one model, giving you a different perspective inside the same workflow.

MultipleChat lets you work with files directly inside chat. You can upload PDFs, scanned PDFs, DOCX documents, TXT files, Markdown files, XLSX, XLS, CSV, TSV spreadsheets, PPTX presentations, images, screenshots, code files like HTML, CSS, JavaScript, Python, JSON, XML, YAML, and other source files, plus structured data files. Then ask questions, summarize, rewrite, extract information, analyze tables, review code, explain files, or generate a new file from the source. For bigger jobs, use Studios: Document Studio for long documents, Presentation Studio for editable PPTX decks, Excel Studio for spreadsheets, and Image Studio for creating or editing visuals. For scanned PDFs and image-heavy documents, MultipleChat can run OCR with Mistral AI, fall back to Claude if needed, or let you bring files through Google Drive to use Google's OCR.

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 is available on Google Play for Android: Download MultipleChat AI on Google Play. The Apple iOS app will be available soon. You can 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.

Both domains belong to the same MultipleChat product. multiple.chat is used for the public website, product pages, and information. multiplechat.ai is used for the application experience where users sign in and use the workspace. This is similar to how OpenAI uses openai.com for company and product information while ChatGPT runs on chatgpt.com.

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.