ChatGPT (Chat Generative Pre-trained Transformer) is an artificial intelligence (AI) chatbot that uses natural language processing to generate human-like text. ChatGPT can respond to questions, compose written content, organize or summarize information, help with translations, analyze or generate an image, and assist in generating ideas for research. Free and Pro / Paid Versions Available

Claude is an artificial intelligence chatbot created by the company Anthropic that is designed to generate text content and engage in conversations with users using human-like responses. Claude is differentiated from other chatbots due to its use of “constitutional AI” — a unique AI training method where ethical principles guide a model’s outputs. Free and Pro / Paid Versions Available

Gemini is Google's AI system that can understand and communicate about many types of information, including text, images, speech, music, and code. It's designed to be multimodal, meaning it can combine and understand different types of information. Free and Pro / Paid Versions Available

Perplexity AI is an AI-powered search engine that uses natural language processing and machine learning to provide answers to user questions. It's designed to provide accurate, relevant, and real-time information. Free and Pro / Paid Versions Available

Connected Papers allows researchers to visually explore academic papers by creating interconnected graphs of related research, helping them discover new papers within their field based on semantic similarity, not just direct citations, providing a visual overview of a research area and identifying key influential articles through its interactive interface. Connected Papers is integrated with Semantic Scholar Free and Pro / Paid Versions Available.

Get cited, evidence-based insights: Consensus is an AI-Powered Academic Search Engine. Using artificial intelligence to find research papers can transform how academics, students, and professionals access and review scholarly literature. Free and Subscription Version Available

Analyze research papers at superhuman speed. Automate time-consuming research tasks like summarizing papers, extracting data, and synthesizing your findings. Citation can be exported to Zotero. Free and Pro / Paid Versions Available

Keenious uses its AI recommendation engine to analyze your document, understand its content, and compare it to millions of scientific publications. Keenious is designed to help students, researchers, and librarians discover hard-to-find research articles. Built in collaboration with universities, Keenious is an innovative tool that enhances higher education and research. Free and Pro / Paid Versions Available (free version is very limited).

Committed to open access, Inciteful uses the power of graph analysis to help you explore and find the most relevant academic literature. It builds a network of papers from citations, uses network analysis algorithms to analyze the network, and gives you the information you need to quickly get up to speed on that topic. You can find the most similar papers, important papers as well as prolific authors and institutions. FREE!

Litmaps is a literature review tool that uses AI to help researchers find relevant academic papers. It uses a citation network to discover literature that might be missed using other search methods. LitMaps can be synced with Zotero. Free and Pro / Paid Versions Available.

Research Rabbit helps researchers discover related academic papers by analyzing citation networks, essentially creating a visual map of research where users can explore connections between articles, authors, and research timelines. Research Rabbit allows you to visualize these connections through interactive graphs and networks, making it easier to navigate through a complex research landscape. Research Rabbit integrates with Zotero by allowing users to seamlessly import and organize their Zotero libraries, enabling enhanced exploration and discovery of related research. FREE!

Scinapse is an AI-powered research intelligence engine. Access 200+ million academic papers from PubMed, IEEE, Springer, Elsevier, and more. Find relevant papers, filter by criteria, and get smart suggestions. AI-powered academic search engine. Free and Pro / Paid Versions Available.

SciSpace is the easiest way to find, understand, and learn any research paper. For every paper you read, get simple explanations and answers from AI and discover a network of connected and relevant papers — all in one place. Free and Pro / Paid Versions Available.

Semantic Scholar provides free, AI-driven search and discovery tools, and open resources for the global research community.
Contains over 200 million academic papers sourced from publisher partnerships, data providers, and web crawls. FREE!

Scholarcy's AI summarization tool is designed to generate accurate, reliable article summaries. Our summarizer tool is trained to identify key terms, claims, and findings in academic papers. These insights are turned into usable Summary Flashcards. Free and Pro / Paid Versions Available.

Afforai is the AI-powered research reference manager that helps researchers manage, annotate, cite papers and conduct literature reviews with AI reliably. Afforai also offers document interaction, summarization, translation, and question answering. Afforai is recommended for research, reasoning, report writing, document understanding, and reference management. Free and Pro / Paid Versions Available

DALL-E 3 creates images from text prompts. It's the latest version of OpenAI's image generation model. Free and Paid Versions Available.

Midjourney is an AI-powered image generator that uses natural language descriptions to create images. It's a generative AI tool that uses machine learning to produce images that can be photorealistic or abstract. Not Free - several subscription plans available.