Perplexity AI
Perplexity is a free AI-powered answer engine that provides accurate, trusted, and real-time answers to any question.
Grok is a tool in the AI Chatbots & Assistants category (pricing: Free). Below are 12 alternatives from the same category in our directory of 1,800+ AI tools, ordered by editorial curation, manual verification, and on-site popularity — not by advertising.
Perplexity is a free AI-powered answer engine that provides accurate, trusted, and real-time answers to any question.
Anthropic's AI assistant family — Claude Opus, Sonnet, and Haiku. Strong for writing, coding, analysis, vision, and long-context reasoning.
OpenAI's flagship AI chatbot with the largest mainstream user base. GPT-5.x models for chat, search, image generation, voice, code interpreter, and agent workflows.
Google's AI assistant family — Gemini 3 Pro for top reasoning, 3.5 Flash for speed. Tight integration with Search, Workspace (Gmail/Docs), and Android.
AI Research Assistant developed by Google. Uplo...
*reviews* - Chat with any PDF.
Poe is an innovative AI tool that enables users to access multiple chat platforms powered by various artificial intelligence models.
Tongyi Qianwen is Alibaba Cloud’s next‑generation large language model platform designed to bring enterprise-grade AI capabilities to developers,...
An open academic discussion community based on ...
DeepSeek's AI assistant. API

SuperInbox unlocks email vibing for everyone. AI learns your writing style and drafts perfect email replies + auto-organizes your Gmail/Outlook...
Zhipu Qingyan is an AI-powered dialogue assistant developed by Zhipu AI, a leading company rooted in Tsinghua University’s AI research ecosystem.
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