Anthropic’s family of LLMs—Opus, Sonnet, Haiku—exposed through the Claude API, Claude Desktop, Claude Pro, and SDKs.
Claude is Anthropic’s family of large language models. Tiers trade cost and latency for capability: Opus is the most capable, Sonnet balances cost and quality, Haiku optimizes for speed and price.
Developer surfaces
The Claude API powers integrations; Claude Desktop and Claude Pro are end-user apps; the Claude Agent SDK exposes agent primitives for building on top. Claude models are commonly paired with MCP servers for tools.