There are several other useful large language models (LLMs) that you may want to try. 

	ChatGPT	Open AI Free Trained on data only through October 2023 As of April 2024, you can use it without creating an account. Additional features (with usage rate limits) Browse the web and obtain up-to-date information Upload images in your prompts Provide support files in your prompts Discover and use GPTs
	ChatGPT Plus	Open AI $20/mo Includes: web search data analysis coding vision (upload images and ask questions about them) Image generation Build chatbots without using code. These are called "GPTs."
	Microsoft Copilot	Microsoft Free, built on GPT-4 (If you use Creative mode) Generate images with DALL-E 3 using Bing Image Creator or Microsoft Designer Includes web search results. Copilot Pro Plan with more features for individuals.
	Gemini (formerly Bard)	Google Free, built on Gemini Pro Includes web search results from Google. Gemini Advanced is built on Gemini Ultra ($20/mo)
	Claude	Anthropic Free. Built on their own model: Claude 3.5 Sonnet which includes: data analysis coding vision (upload images and ask questions about them) Pro version ($20/mo)  Focused on reliability and safety. No web search results. Trained on data through April 2024.
	Perplexity AI	Perplexity Free. Includes web search results, with citations. Offers "Focus" choices such as YouTube, Reddit, Semantic Scholar ,and Wolfram|Alpha. You can use it without creating an account. Pro account ($20/mo) allows a choice between several models: GPT-4o, Claude, and others.
	Meta AI	Meta Free, built on Meta Llama 3 Includes web search results.  Log in with your Facebook or Instagram account. You can also access the chatbot on WhatsApp, Instagram, Messenger, or Facebook, by typing "@meta ai" within chats. Learn more.

For a list of more AI tools, see AI Tools Landscape by Carlos Lizarraga-Celaya. 

These tools are based on language models, like those from OpenAI.

Elicit
Find answers from 175 million research papers. Elicit uses semantic similarity, which finds papers related to your question even if they don't use the same keywords. See How to use Elicit responsibly.

Explainpaper
Upload a PDF, highlight confusing text, and get a simpler explanation. Useful for reading research papers outside your field. You can also get explanations in languages other than English. Learn more about Explain Paper.

Inciteful
Build a network of academic papers and it will analyze the network to help you discover the most relevant literature. Select two papers and it will show how the literature connects them together.

Petal
Reference manager and more. Ask the AI to explain your selection, translate it into another language, or identify key points.

Scite AI assistant
A conversational tool made by Scite that lets you ask questions in simple language and get answers backed by real, up to date references. Think of like ChatGPT with real, up to date references, tailor-made for anyone discovering, understanding, or writing research.