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.

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.

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.

QuillBot is a free multifunctional AI writing assistant offering paraphrasing, summarizing, grammar checking, citation generation, and translation with high daily limits for global 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.

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.