Hugging Face Chat offers free access to hundreds of open-source AI models for text, code, image, and multimodal interactions in a collaborative community hub used by millions worldwide.

Pi is a free personal AI companion by Inflection designed for empathetic, ongoing conversations, advice, brainstorming, and support with unlimited usage for users around the world.

NotebookLM by Google is a free experimental AI tool that transforms uploaded documents, notes, and sources into audio overviews, summaries, study guides, and interactive insights instantly.

Phind is a free AI search engine optimized for developers and technical questions, providing detailed code examples, explanations, and cited sources for programming and research worldwide.

Google AI Studio is a free developer platform for prompting, tuning, and building custom applications with Gemini models, including advanced multimodal features for creators globally.

You.com is a free privacy-focused AI search and assistant with customizable apps for writing, research, image generation, and personalized answers serving users worldwide.