Claude

Claude is a family of generative large language models designed to deliver advanced reasoning, coding, and autonomous task execution underpinned by a safety‑first methodology known as Constitutional AI. It handles long‑context inputs, multimodal prompts, and agentic workflows.

The Claude lineup includes Haiku (fast and cost‑efficient), Sonnet (balanced & agentic), Opus (complex reasoning and enterprise workflows), Fable and Mythos (next‑generation agents), and extended thinking capabilities. Notably, Claude Sonnet 5 enables autonomous planning, tool access (browser, terminal), and longer task execution from a single prompt. Claude Science adds a purpose‑built workbench for scientific workflows on local infrastructure.

These models solve business challenges in coding automation, deep document analysis, and research workflows with built‑in safety and transparency.

• Constitutional AI: Instills ethical principles into model behavior via self‑evaluation, reducing harmful outputs while retaining reliability and precision.
• Extended context window: Supports up to 1 million tokens (often ~200k for standard users), enabling entire books, transcripts, and research datasets to be processed in one prompt.
• Agentic workflows (e.g., Sonnet 5): Models can autonomously plan, use tools like browsers and terminals, and execute complex, multi‑step tasks with minimal user instructions.
• Claude Science workbench: A beta environment for life sciences that operates on users’ local infrastructure, keeping sensitive datasets secure while consolidating fragmented research tools.
• Multimodal support: Can analyze images, charts, screenshots, and visual data alongside text inputs to aid visual analysis and feedback tasks.

Aimed at professional users across multiple personas:

• Software engineers and developers: Use Sonnet 5 or Opus for autonomous coding, debugging, and multi‑hour project delivery.
• Research scientists: Employ Claude Science to unify fragmented scientific tools while keeping data secure on-premises.
• Business analysts and content creators: Leverage extended context and multimodal processing for long document summarization, report generation, and logic analysis.
• Enterprise teams: Use Claude for shared workflows, connector integrations (e.g., Microsoft 365), and team-level administration with strong compliance controls.

Typical user journey with Claude:

1. Account setup: Choose a plan (Free, Pro, Max, Team, Enterprise) and access via web, desktop, mobile, or API.
2. Model selection: Select among Claude models—Haiku, Sonnet 5, Opus 4.8, Fable 5, Mythos (preview), etc.—based on task complexity.
3. Input prep: Provide prompt text, optionally include images or visual data, define goals or agents.
4. Processing: Model runs inference, applying Constitutional AI safety filters; extended context or agentic planning kicks in depending on model.
5. Output & interaction: Receive text response, code execution results, or a multi‑step plan. If using agents, Claude can autonomously complete tasks and provide feedback.
6. Collaboration & tooling: In workplace tiers, users can share projects, use connectors (e.g., Outlook, Teams), deploy skills, and configure controls like SSO or retention policies.

Anthropic’s pricing model for Claude combines token‑based usage with tiered user plans:

• Model pricing (per million input/output tokens) varies by model class:
  • Haiku (fastest, lowest cost)
  • Sonnet 5 (introductory low‑cost agentic tier)
  • Opus 4.8 (enterprise, complex workflows)
  • Fable 5 (long‑running agents)
  Introduced introductory lower rates through August 31, 2026; higher standard rates thereafter.
• User plans: Free (limited access), Pro (standard usage), Max (higher capacity within sessions, e.g., 5× or 20× Pro), Team and Enterprise (organizational controls, SSO, compliance).
• Additional paid features: web search access, code execution sandbox hours, managed agents (session‑hour billing).