Best AI Tools for an Everyday AI Chat Assistant
A general assistant for writing, questions, analysis and brainstorming.
Short answer
For an everyday AI chat assistant, the most-visited AI tool we track is OpenAI / ChatGPT, followed by Claude and Perplexity AI. OpenAI / ChatGPT has a free plan. The lowest paid entry price is Mistral AI at $15/mo (Pro). Ranked by real web traffic (Tranco), not by who pays.
Updated Oct 23, 2026 · Data: Tranco web traffic ranks, verified pricing
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OpenAI / ChatGPT
Maker of ChatGPT and the GPT models; leading AI research lab.
#127 global trafficFreemium · $20/mo (Plus)Free plan - 2
Claude
Anthropic's Claude assistant — advanced reasoning and coding.
#412 global trafficFreemium · $20/mo (Pro)Free plan - 3
Perplexity AI
AI-powered answer engine that cites sources in real time.
#679 global trafficFreemium · $20/mo (Pro)Free plan - 4
DeepSeek
High-performance open-source LLM from Chinese AI lab.
#1,228 global trafficFreemium · Free / Usage-basedFree plan - 6
Mistral AI
Open-weight European AI models with strong performance.
#6,773 global trafficSubscription · $15/mo (Pro)
Frequently asked questions
What is the best AI tool for an everyday AI chat assistant?
For an everyday AI chat assistant, the most-visited AI tool we track is OpenAI / ChatGPT, followed by Claude and Perplexity AI.
Is there a free AI tool for an everyday AI chat assistant?
Yes. OpenAI / ChatGPT, Claude, Perplexity AI and DeepSeek have a free plan or free tier.
What is the cheapest AI tool for an everyday AI chat assistant?
Among the tools we list, Mistral AI has the lowest paid plan at $15/mo (Pro).
Related: research with cited sources