Anthropic's safe and helpful AI assistant
by Anthropic · Founded 2021
Claude by Anthropic is known for its long context window, nuanced reasoning, and safety-focused design.
Claude is Anthropic's flagship AI assistant, designed with safety and helpfulness as co-equal priorities. The Claude 3.5 Sonnet model has established itself as the leading AI for coding, document analysis, and nuanced reasoning — frequently outperforming GPT-4o on coding benchmarks and producing more thoughtful, nuanced responses on complex topics.
Claude's most distinctive technical capability is its 200,000-token context window — the largest of any major AI assistant. This allows Claude to read and analyze entire books, codebases, or legal documents in a single conversation, making it uniquely suited for tasks that require understanding large bodies of text.
For coding, Claude 3.5 Sonnet has become the preferred model for many developers, with particularly strong performance on complex, multi-step coding tasks. Its ability to understand and modify large codebases in a single context window is unmatched.
Claude's Constitutional AI training approach produces responses that are notably more careful, honest about uncertainty, and less likely to produce harmful content than competitors — making it the preferred choice for organizations with strict content policies.
| Feature | Claude |
|---|---|
| Free Plan | Yes (limited) |
| Starting Price | $20/month (Pro) |
| Context Window | 200K tokens — largesthighlight |
| Coding Performance | Best-in-class (Sonnet 3.5)highlight |
| Document Analysis | Excellenthighlight |
| Image Generation | No |
| Image Understanding | Yes |
| Web Search | Yes |
| Projects (Persistent Context) | Yes |
| API Access | Yes (separate pricing) |
I switched from ChatGPT to Claude for coding tasks 4 months ago. Claude 3.5 Sonnet consistently produces cleaner, more idiomatic code. The 200K context window means I can paste my entire codebase and ask for architectural advice. It's transformed how I work.
I work with lengthy legal documents daily. Claude can ingest an entire contract, understand all its clauses, and answer specific questions about it with accurate citations. No other AI tool handles document length like Claude does.
Claude produces more nuanced, thoughtful responses than ChatGPT for writing tasks. It's more honest about what it doesn't know. My only frustration is the lack of image generation and fewer integrations. For pure text work, it's my preference.
Claude and ChatGPT are both excellent general-purpose AI assistants. Claude excels at coding, document analysis, and nuanced reasoning, and has a larger context window (200K vs. 128K tokens). ChatGPT has a larger ecosystem, image generation, and more integrations. Many users subscribe to both.
Claude 3.5 Sonnet supports a 200,000-token context window — equivalent to roughly 150,000 words or 500 pages of text. This is the largest context window of any major AI assistant and enables analysis of entire books, codebases, or legal documents in a single conversation.
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