Explainpaper Alternatives: 12 Best Similar Tools (2026)

Scholarcy

Freemium

Scholarcy is an AI-powered research assistant designed to help students, researchers, and professionals read, understand, and organize academic...

ChatPDF

*reviews* - Chat with any PDF.

NotebookLM

Free

AI Research Assistant developed by Google. Uplo...

xAI's AI assistant

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.

Claude

Free + Pro $20/mo+ · Manually verified

Anthropic's AI assistant family — Claude Opus, Sonnet, and Haiku. Strong for writing, coding, analysis, vision, and long-context reasoning.

DeepSeek's AI assistant. API

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.

Poe

Freemium

Poe is an innovative AI tool that enables users to access multiple chat platforms powered by various artificial intelligence models.

Perplexity AI

Freemium

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

An open academic discussion community based on ...

Kimi

Freemium

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