ChatGPT - A large language model (LLM) powered chat from Open AI. A free version and a paid version are available.
Claude - An LLM built by Anthropic with public participation. Connect with your email or Google account. In March 2024, Claude 3 surpassed OpenAI's GPT4 for the first time.
Copilot - Integrated with Bing AI and is trained on text/code regularly, so it has current information. You must have a Microsoft account or use Microsoft Edge. Some versions of Copilot will have ads. In March 2024, Microsoft announced that GPT4-Turbo is accessible for free through Copilot. Log in to Copilot, and under "Choose a conversation style," select either Creative mode or Precise mode.
Gemini - Integrated with Google Search to access and process real-time information. Formerly known as Bard.
Pi - Designed to be a supportive, empathetic personal assistant.
For additional resources, consult this list of GenerativeAI products specifically for college students and faculty.