ChatGPT
OpenAI's AI assistant with free, Go, Plus, Pro, Business and Enterprise plans.
What it is
ChatGPT is OpenAI's assistant, running current GPT-5.6 and GPT-6 family models. Individual plans are Free, Go, Plus and Pro, and Business, Enterprise and Edu plans are sold per user. Features include projects, scheduled tasks, custom GPTs and deep research. GPT-4 no longer appears on OpenAI's API pricing page.
Heads up: GPT-4 is an older model superseded by GPT-5.6 and GPT-6 family models. Entry now covers the ChatGPT product.
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ChatGPT alternatives
Claude
by Anthropic
Anthropic's AI assistant for work tasks, documents, analysis and coding, with business connectors.
Gemini
by Google
Google's AI assistant and model family, with a free tier and paid plans for work.
Perplexity
by Perplexity AI, Inc.
AI answer engine with cited sources and deep research across multiple models.
DeepSeek
by Hangzhou DeepSeek AI Foundation Technology Research Co., Ltd.
Chinese AI lab with a free chat app, a paid API and openly released models.
Grok
by SpaceXAI LLC (formerly xAI)
AI chatbot with real-time web and X search, reasoning and image and video generation.
All-in-one AI workspace with several models for text, image, audio and video.