Anthropic is an AI safety company that developed Claude, a next-generation AI assistant designed with constitutional AI principles to be helpful, honest, and harmless in its interactions. The company focuses on building AI systems that prioritize human benefit and long-term well-being through careful research, responsible scaling policies, and intentional safety measures embedded at the foundation level. Claude represents Anthropic's commitment to showing what responsible AI development looks like in practice, combining powerful capabilities with thoughtful guardrails against misuse or harmful outputs.

Claude excels at complex tasks requiring nuanced understanding, including document analysis, creative writing, coding assistance, research synthesis, and detailed problem-solving across professional domains. Claude Sonnet 4.5 is state-of-the-art on the SWE-bench Verified evaluation, measuring real-world software coding abilities, making it particularly strong for developers building applications or analyzing codebases. The assistant maintains context across long conversations and can process extensive documents, technical specifications, legal contracts, and research papers with remarkable comprehension. Its responses demonstrate careful reasoning, acknowledge uncertainty when appropriate, and avoid making overconfident claims about uncertain topics.

The Max plan includes Claude Code, Integrations, advanced Research, and global web search, providing expanded capabilities for users who collaborate extensively with AI on demanding projects. API pricing for Claude Sonnet 4.5 remains at $3 per million input tokens and $15 per million output tokens, matching the previous generation while delivering improved performance. The platform serves individual users, development teams, and enterprises requiring AI assistance that respects ethical boundaries while delivering practical value. Anthropic Academy offers educational resources for developers learning to build with Claude, enabling users to maximize the platform's capabilities for their specific needs.

Key Features

• Extended Context Windows: Process and analyze documents up to 200,000 tokens in length, enabling comprehensive review of entire codebases, books, legal documents, and research compilations
• Constitutional AI Training: Built with safety principles embedded from the ground up, reducing harmful outputs while maintaining helpfulness through human feedback and AI-assisted alignment
• Advanced Coding Capabilities: State-of-the-art performance on software engineering benchmarks, with specialized features for code review, debugging, architecture planning, and technical documentation
• Research and Analysis Tools: Max plan includes advanced Research features and global web search for comprehensive information gathering and synthesis
• Developer API Platform: Flexible API access with competitive pricing, prompt caching for cost optimization, and batch processing options for large-scale operations

Who This Is For

• Software development teams needing reliable AI assistance for code reviews, refactoring, debugging complex systems, and maintaining large codebases with safety-conscious outputs
• Researchers and analysts working with extensive documents, requiring careful synthesis of information, fact-checking, and comprehensive literature reviews
• Enterprise organizations prioritizing AI safety, responsible deployment, and systems that align with corporate values while delivering measurable productivity improvements

Common Questions

What makes Claude different from other AI assistants?

Claude is built on constitutional AI principles that emphasize safety, honesty, and harmlessness. It's designed to acknowledge limitations, refuse harmful requests appropriately, and provide thoughtful, nuanced responses rather than overconfident claims.

How much does Claude cost for individual users?

Claude offers a free tier for basic usage, Professional at $20/month for expanded access, and Max at $40/month with Claude Code, Integrations, advanced Research, and web search.

Can developers integrate Claude into their applications?

Yes, Claude is available via API with pricing at $3/$15 per million tokens for Sonnet 4.5, with additional cost optimization through prompt caching and batch processing options.

Does Claude have access to current web information?

Max plan subscribers have access to global web search, allowing Claude to retrieve and synthesize current information beyond its training knowledge cutoff.