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ChatGPT |
Open AI
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ChatGPT Plus |
Open AI
Build chatbots without using code. These are called "GPTs." Enterprise edition for large businesses. Teams account for small business. "Reasoning" models can spend time trying different solutions before responding. Starting December 5, 2024, there is a $200/month version called ChatGPT Pro. |
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Microsoft Copilot | Microsoft Free Includes web search results from Bing and image generation. You can also generate images with Bing Image Creator or Microsoft Designer (log in with a personal Microsoft account)
(they won't use your input for training future models) |
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Gemini |
Google
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Claude |
Anthropic Now includes web search in both free and paid versions (as of May 27, 2025).
See pricing plans: free, pro, and max. |
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Perplexity AI | Perplexity Free. Includes web search results, with links to sources. Offers "Focus" choices such as web, academic, or social. You can use it without creating an account. The feature called Spaces makes it easy to create your own knowledge base where you can search through your class notes, syllabus, and course materials. Generate practice exams or collaboration guides for group projects. Both free and Pro accounts ($20/mo) allow a choice between several models: Sonar, Claude 4 Sonnet, GPT-4.1, Gemini 2.5 Pro, Grok-3 beta, and reasoning models: R1-1776, o4-mini, Claude 4.0 Sonnet Thinking. |
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Meta AI |
Meta |
For a list of more AI tools, see AI Tools Landscape by Carlos Lizarraga-Celaya.
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