Claude

Claude is a family of large language models (LLMs) developed by Anthropic, serving as a multi-purpose AI assistant through chat and API. Its architecture supports extensive context windows, enabling processing of long texts like books and multi-page documents.

Built on Constitutional AI principles, Claude prioritizes ethical compliance, aggressive red‑teaming, and user safety in domains ranging from coding to business analysis.

Claude addresses business needs in content generation, coding, complex reasoning, summarization, research workflows, and agentic task execution, all while preserving user trust through alignment and minimized harmful outputs.

• Ultra‑large context window: Handles up to ~200K tokens, enabling analysis over long documents and multi‑page inputs, ideal for research and document workflows.
• Multi‑model family (Haiku, Sonnet, Opus, Mythos/Fable): Offers tiers balancing capability, speed, and cost. Mythos‑class Fable 5 adds frontier AI strength with safety, Sonnet optimized for price/performance, Opus for complex tasks.
• Constitutional AI safety framework: Trained to minimize harmful output; enhanced through red‑teaming, adversarial testing, and fallback mechanisms for risky queries.
• Claude Code and Cowork workflows: Code generation and collaborative research mode integrated into chat, enhancing productivity for developers and teams.
• Wide availability & tool integration: Accessible via web, desktop, iOS, Android, API, AWS Bedrock, and Google Vertex AI, supporting diverse deployment needs.

• Knowledge workers & researchers: Leverage ultra‑long context and summarization for complex analysis, long‑form writing, or triaging documents.
• Developers & coders: Claude Code streamlines rapid generation, review, and exploration of code with intelligent, safety‑aware completion.
• Teams & collaboration: Cowork mode, Projects, and shared context facilitate coordinated workflows and document archiving.
• Enterprises & regulated sectors: Advanced tiers and API options support security (SSO, audit logs), compliance (HIPAA readiness), and high‑volume usage.

• Sign up at claude.ai or via integrated platforms (AWS Bedrock, Vertex AI, Anthropic API).
• Select usage tier—Free, Pro, Max (5× or 20×), Team seats, or Enterprise—with capabilities scaling accordingly.
• Use chat interface or API to input natural language prompts or files. The chosen model (Haiku / Sonnet / Opus / Fable) processes input, applying safety checks; fallback to lower-tier model occurs for risky queries.
• Receive detailed outputs—code, analysis, summaries, documents—with ability to maintain memory across sessions or projects.
• In API use, benefit from prompt caching, batch processing, and regional endpoints; Enterprise tier adds auditability and scaling features.

Claude offers tier-based subscriptions: Free (baseline access), Pro (monthly subscription with moderate usage), Max (5× or 20× capacity at higher tiers), Team (per-seat collaboration plan), and Enterprise (custom terms including audit, compliance, and large context windows).

API usage priced per million tokens, with different rates for models (Haiku, Sonnet, Opus) and discounted batch processing and prompt caching mechanics.

There is no time-limited trial, but Free tier serves as open access trial; occasional API trial credits may be available for new accounts.