AI Tools

Claude

The Safest, Smartest AI Assistant

Founded: 2023
Founder: Dario Amodei
San Francisco
Updated: Jul 2026
Visit Official Site中文العربية
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Overview

Claude is an AI assistant developed by Anthropic, known for its focus on safety through 'Constitutional AI'. The Claude 3.5 family features a 200K token context window capable of processing entire books. It excels at coding, logical reasoning, and creative writing, making it a favorite among professional writers and developers.

Core Features

Long Context

200K token context window to read books or large code repositories

Safety & Ethics

Trained using Constitutional AI for safer, less hallucinated outputs

Creative Writing

Renowned for high-quality, natural-sounding copy and prose

Code Intelligence

Exceptional code generation, translation, and debugging capabilities

Logical Reasoning

Solves complex math, logic, and scientific queries with precision

Visual Processing

Excellent understanding of graphs, charts, diagrams, and PDF files

How to Use

  1. Sign Up

    Create an account at claude.ai using your email or Google account (VPN needed in China).

  2. Understand Limits

    Free tier offers access to Claude 3.5 Sonnet with message limits that reset daily.

  3. Upload Context

    Upload PDFs, code files, or spreadsheets directly to the prompt bar.

  4. Write Prompt

    Instruct Claude on what to analyze or write. Use clear constraints for best results.

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Founding Story

Anthropic was founded in 2021 by siblings Dario and Daniela Amodei, both former VP-level researchers at OpenAI, along with other OpenAI pioneers. Dismayed by the commercial shift of OpenAI, they founded Anthropic as a Public Benefit Corporation to study AI safety. They launched Claude in March 2023. Backed by billions in investments from Google and Amazon, Anthropic has established Claude as the premier developer-centric and safety-first alternative to ChatGPT.

FAQ

Yes, Claude is restricted in mainland China and some other regions. A VPN is required to sign up and log in.
No, unlike ChatGPT, Claude is purely text-and-code focused and cannot generate images directly, but it can read them.