Do I need an API key to use the AI chatbot?

Yes. You need to connect your own free OpenRouter API key. No API key is included with the chatbot.

Are the AI models always free and available?

The chatbot offers free-model options, but model availability, provider limits and shared free quotas can change. A fallback model may be available when a model is busy.

Where do my chat messages go?

Messages are sent to OpenRouter and the selected model provider to generate replies. Avoid sharing sensitive or confidential information.

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Free model options · Simple to start

A helpful AI chatbot for everyday questions.

Draft a message, plan your week, explain a topic or brainstorm an idea. Connect your own free OpenRouter key to use available free models; models and shared quotas can change.

Open Nandan Pixel AI chat Explore all tools

Useful for a quick start

A practical AI assistant, in your browser.

Use suggested prompts or ask your own question. When a model is busy, the chat can try another available fallback option.

Write and refine

Draft a message, improve clarity, or adjust the tone to sound more professional and friendly.

Plan and explain

Turn a big task into simple steps, explore a topic in plain language, or sketch a workable routine.

Brainstorm ideas

Get a few fresh starting points when you feel stuck, then shape the best one into your own plan.

Know before you chat

Bring your own key. Keep control of what you share.

A free OpenRouter account and API key are required to start chatting; the app does not include a key. The chatbot interface says your key stays in the tab’s memory. Free models may be busy, limited or unavailable, so access is not guaranteed.

Your prompts are sent to OpenRouter and the selected model provider to generate replies. Avoid sending passwords, personal records, confidential work content or other sensitive information. Review OpenRouter’s and the model provider’s terms before use.

Common questions

AI chatbot FAQ

Do I need an API key?

Yes. Add your own free OpenRouter API key in the chatbot settings. Nandan Pixel does not provide or include a key.

Are all models always free?

The chat lists free-model options, but provider limits, availability and shared quotas can change. A fallback model may be available when one is busy.

Where do my prompts go?

Messages are sent to OpenRouter and the selected model provider. Avoid sharing sensitive or confidential information.

Where is the chatbot?

This guide lives on nandanpixel.com. The chatbot itself remains at aichatbot.nandanpixel.com.

Ready to ask, plan or brainstorm?

Open Nandan Pixel AI chat, connect your free OpenRouter key, and choose from the models available at that time.

Start an AI chat