Core Capabilities
What Claude Can Do
- 💻Coding — writes, reviews, debugs, and explains code across 50+ languages
- 📝Writing — drafts, edits, and refines prose from emails to long-form essays
- 🔍Analysis — breaks down complex documents, data, and arguments
- 🧮Math & reasoning — solves problems step-by-step with chain-of-thought
- 🌐Multilingual — reads and writes in dozens of languages
- 🖼️Vision — understands images, diagrams, charts, and screenshots
- 🛠️Tool use — calls functions, searches the web, writes & runs code in sandboxes
- 📂Long documents — reads entire codebases or books in a single context window
Anthropic Timeline
2021
Anthropic founded — Dario Amodei, Daniela Amodei, and seven others leave OpenAI to focus on AI safety
2022
Constitutional AI paper — Anthropic publishes the CAI method for training helpful, harmless, honest models
Mar 2023
Claude 1 launches — first public Claude model via API and Claude.ai
Mar 2024
Claude 3 family — Haiku, Sonnet, Opus debut; Opus tops MMLU and HumanEval benchmarks
Jun 2024
Claude 3.5 Sonnet — sets new state-of-the-art on coding; artifacts and computer use previewed
2025
Claude 4 generation — Sonnet 4.6 and Opus 4.6 with extended thinking, Claude Code CLI, and agent capabilities