ChatGPT
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.
Perplexity AI is a tool in the AI Chatbots & Assistants category (pricing: Freemium). 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.
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.
*reviews* - Chat with any PDF.
AI Research Assistant developed by Google. Uplo...
Anthropic's AI assistant family — Claude Opus, Sonnet, and Haiku. Strong for writing, coding, analysis, vision, and long-context reasoning.
xAI's AI assistant
Adobe's AI add-on built into Acrobat that summarizes PDFs, answers questions about document content, and points to the source pages.

Runable is a general AI agent that can execute any task, from building web apps, slides, reports, and documents to generating images, videos, and...

Claude Code-level AI agent and Skills platform requiring zero setup or configuration.
Doubao is ByteDance’s next‑generation AI assistant designed to help individuals and teams work, create, and learn more efficiently.
Lovable is an AI-powered development platform that generates production-ready full‑stack applications from simple prompts.
Poe is an innovative AI tool that enables users to access multiple chat platforms powered by various artificial intelligence models.
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