Claude Alternatives: 12 Best Similar Tools (2026)

ChatGPT

Freemium · Manually verified

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.

Gemini

Freemium · Manually verified

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.

NotebookLM

Free

AI Research Assistant developed by Google. Uplo...

ChatPDF

*reviews* - Chat with any PDF.

Perplexity AI

Freemium

Perplexity is a free AI-powered answer engine that provides accurate, trusted, and real-time answers to any question.

Adobe Acrobat AI Assistant

AI Assistant add-on $4.99/mo (or $59.88/yr); limited free requests for Acrobat users · Manually verified

Adobe's AI add-on built into Acrobat that summarizes PDFs, answers questions about document content, and points to the source pages.

Kimi

Freemium

Kimi is a long‑context AI assistant designed for deep thinking, complex documents, and extended conversations.

Alibaba's AI assistant. Includes QwQ-32B, Qwen2...

xAI's AI assistant

豆包

Freemium

Doubao is ByteDance’s next‑generation AI assistant designed to help individuals and teams work, create, and learn more efficiently.

ChatUp AI - Personal AI Chatbot for Free

Explore free NSFW AI chat, AI girlfriend, NSFW AI image generator, NSFW AI video generator, AI sex chat, hentai and sexy AI chat. Free and No Sign Up!

LiveCodeBench is a holistic and contamination-f...