Claude
Anthropic's AI assistant, best-in-class reasoning, tool use, and safety for autonomous systems.
Updated 2026-03-17
Agent FrameworksPaid· Pay-per-token. Opus: $15/$75 per MTok input/output. Sonnet: $3/$15. Haiku: $0.25/$1.25. No subscription required.Visit siteDocs
Claude is a family of large language models built by Anthropic. It excels at complex reasoning, long-context tasks, tool use (function calling), and agentic workflows. Claude Opus is the most capable model; Claude Sonnet balances capability and speed; Claude Haiku is optimized for speed and cost.
Use Cases
- ·Primary reasoning engine for autonomous agents
- ·Tool use / function calling
- ·Long document analysis and summarization
- ·Code generation and review
- ·Multi-agent orchestration
Key Points
- ·Best-in-class tool use (function calling) for agentic systems
- ·200K token context window on Sonnet and Opus
- ·Three tiers: Opus (most capable), Sonnet (balanced), Haiku (fastest/cheapest)
- ·Native MCP support in Claude Desktop and API
Tags
anthropicllmtool-usefunction-callingmulti-agent
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