ChatGPT is an artificial intelligence (AI) chatbot that uses natural language processing to create humanlike conversational dialogue. The language model can respond to questions and compose various written content, including lists, articles, social media posts, translated text, essays, code and emails.
Creator: OpenAI
Language Model: OpenAI's GPT-5
Data Sources: ChatGPT was trained on a massive dataset of text, including Common Crawl, Wikipedia, books, articles, documents, and content pulled from the open internet; in addition to (since GPT-4) the content from web searches. Some authors have sued OpenAI for using their books to build the language abilities of ChatGPT.
Language and Availability: 9 languages, 164 countries and territories
Cost: Free for GPT 4o and access to 5, ChatGPT Plus is available for $20 per month, and ChatGPT Pro is $200 per month
Created by Google, Gemini is described as a conversational AI tool that can help users brainstorm ideas, spark creativity, and accelerate productivity. Like ChatGPT, it uses natural language processing to generate a human-like response to user queries. Has added the Veo 3 video creation tool.
Creator: Google
Language Model: Gemini 2.5
Data Sources: Gemini was trained on Infiniset, a data set including Common Crawl, Wikipedia, documents, and conversations and dialogues from the web; Gemini can also perform web searches
Language and Availability: 40 languages, over 230 countries and territories
Cost: Free for Gemini 2.5 access, $20/month for Google AI Pro, and $250/month for Google AI Ultra
Claude is an artificial intelligence (AI) chatbot that uses natural language processing to create humanlike conversational dialogue. The language model can respond to questions and compose various written content, including lists, articles, social media posts, translated text, essays, code and emails.
Creator: Anthropic
Language Model: Claude's Opus 4.1
Data Sources: Claude was trained on a massive dataset of text and fine-tuned with human feedback.
Language and Availability: 15 languages, 176 countries and territories
Cost: Free for chat use, Pro (with access to their Research feature) available for $17 per month, and Max (increased volume of use) is $100+ per month
Copilot in Bing is accessible whenever you use the Bing search engine, as well as part of a built-in feature of the Microsoft Edge web browser. It does not require a login or for you to provide any identifying information. Bing uses the OpenAI LLM behind ChatGPT.
Creator: Microsoft
Language Model: Microsoft Prometheus model built upon OpenAI's GPT-4
Data Sources: Copilot in Bing is designed to understand complex and natural language queries using AI and LLM technology. It relies on data aggregated by Microsoft from millions of Bing search results. Basic questions looking for factual information tend to be accurate, but, as with any chatbot, any questions that require interpretation or critical observation should be scrutinized and vetted for accuracy.
Language and Availability: 7 languages, over 160 regions
Cost: Free