Semantic Scholar

D

DeepSeek

Freemium

High-performance open-weight Chinese AI assistant and reasoning model.

K

Kimi

Freemium

Moonshot AI's assistant with a huge context window and strong Chinese.

A

AskYourPDF

Freemium

Chat with documents and extract answers instantly.

G

GPT Researcher

Open source

Autonomous AI agent for deep research reports.

A

AIPDF

Freemium

Chat with your PDF documents.

P

Perplexity

Freemium

AI search engine that answers with cited sources.