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.

Meta AI is a completely free advanced assistant powered by Llama models, offering chat, real-time image generation, and creative features accessible on web, WhatsApp, Instagram, and more worldwide.

ChatPDF is a free AI tool that lets users upload PDFs to ask questions, get summaries, extract information, and gain insights from documents quickly and securely worldwide.

Goblin.tools is a free collection of practical AI utilities for task management, text formalizing, estimation, and brainstorming, especially helpful for neurodivergent individuals worldwide.

Poe is a popular free platform that gives access to multiple leading AI models like GPT-4o, Claude 3.5, Gemini, Llama, and thousands of custom bots with generous daily quotas for worldwide users.

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.