We totally understand that you’d like to test 7-Cal’s abilities 😊. Since we’re a small team, we aren’t able to provide custom answers for every question. You may wanna check our Youtube (https://www.youtube.com/@7_Cal/shorts)channel or join our Discord(discord.gg/yr6M7cwy3d) to view the demo. Here’s what you may want to know: 7-Cal doesn’t create answers itself. It connects directly to official AI models, the same ones you can try on their websites. If your question works there, it will also work on 7-Cal! No matter what the subject - mathematics, physics, chemistry, engineering, electronics What makes 7-Cal special is its built-in camera, enhanced with algorithms to capture your questions clearly and send them to the AI. In most cases, 7-Cal can capture questions clearly. Only under poor conditions, like very low light or awkward angles, the photo quality might drop, which could affect the AI’s answer. How it works: 📸 Snap a photo with 7-Cal → 📤7-Cal send it to AI → 🤖 AI generates a step-by-step answer → 📟 Displayed right on 7-Cal.

7-Cal supports a wide range of advanced AI models, giving users flexibility to choose different models based on reasoning depth, speed, and complexity. • GPT-5.2 Pro • GPT-5.2 Think • GPT-5.2 • GPT-5.1 Think • GPT-5.1 • Gemini 3.1 Pro • Gemini 3 Pro Think • Claude Sonnet 4.5 Think • Claude Opus 4.6 • GPT-5 Nano (free model for AI monthly plan users) Or your own custom model via API key Notes: About the GPT models: GPT-5.2 Pro is OpenAI’s most powerful model and also the most expensive in terms of credit usage. For most complex tasks, GPT-5.2 Think already provides more than sufficient reasoning capability. If you are interested in the exact credit cost for each model, please refer to the official pricing pages for each model provider.

We offer a credit-based system: 1. Monthly Plan: $20 USD for 30 days, including 500 credits. After credits are used up, you can still access free models. 2. Pay-As-You-Go: Purchase credits anytime as needed. 3. Use Your Own API: Connect your own API if preferred. https://static.wixstatic.com/media/74a8a2_3efc463a83204cc8ba2233f2c72f3524~mv2.jpg https://static.wixstatic.com/media/3b88d4_d64a5898522746a690d42218251f3681~mv2.png https://www.7-cal.com/pricing-plans/list(https://www.7-cal.com/pricing-plans/list)

1. Is this ChatGPT or ChatGPT Plus? No. ChatGPT and 7-Cal may use the same AI models, but they are different products with different usage methods, interfaces, and pricing structures. ChatGPT is a software product and user interface provided by OpenAI, while 7-Cal is a hardware device that connects to AI models through APIs. 7-Cal uses AI models provided by third-party AI service providers, such as OpenAI, Google, and Anthropic. 2. If I have a ChatGPT Plus subscription, can I use it on 7-Cal? ChatGPT Plus applies only to the ChatGPT application, unless you have an API key. You can configure your own Custom Model using your API key in the backend panel. Whether this is possible depends entirely on whether your subscription includes API access. Please search the provider’s official documentation or contact your API key provider directly.

Only one AI Monthly Plan can be active within a 30-day period. If you already have an active AI Monthly Plan and purchase another one, the new plan will not add credits immediately. The 500 credits from the newly purchased plan will be automatically issued at the start of the next plan cycle - once your current plan ends. As said, the newly purchased plan will extend the active period of your AI Monthly Plan, which you can see in your backend panel under the credits’ active time. If you need additional credits during an active monthly plan, please purchase Pay-As-You-Go credits, which are added instantly to your account.

High-performance models such as GPT-5 and Claude Opus 4.1 will consume credits. Free models such as GPT 5 nano etc. remain accessible without credit usage.

To enjoy our advanced models, you will need to purchase credits. If you’re a monthly subscriber, once your credits run out, you can keep using the free model without interruption!

No. The AI response text cannot be displayed in 4 lines, and the text size cannot be reduced. Due to the limited screen resolution of the device, the current text size is required to ensure: Clear readability, Stable rendering, Support for all supported languages and symbols If you saw earlier demo (https://youtu.be/cDMunHkoQac)versions with more than two lines of text, that was because those systems supported far fewer characters and symbols, which allowed more lines to be shown on the screen.

Yes. Without internet access, it can still be used as a standard calculator and for all offline functions.