Anthropic API
Anthropic's interface for accessing Claude models, offering AI assistance with a focus on safety and helpfulness.
Technical explanation
The Anthropic API gives developers access to Claude, a family of AI models known for longer context windows and strong reasoning. Claude 3 models (Haiku, Sonnet, Opus) span different capability and cost tiers. The API design is similar to OpenAI's, making migration between providers relatively straightforward.
What sets Anthropic apart is context length. Claude can handle 200,000 tokens in a single conversation, compared to smaller limits on many competitors. This matters for applications that need to process long documents, codebases, or extended conversation histories without losing context. You can literally paste entire books and ask questions about them.
The API includes features like vision (analyzing images), tool use (function calling), and streaming responses. Tool use works similarly to OpenAI's function calling, letting you define tools that Claude can decide to invoke. The messages format structures conversations clearly between user, assistant, and system roles.
Anthropic's safety research background influences the API. Claude tends to be more cautious than some alternatives, which can be good or frustrating depending on your use case. The developer experience is clean, with Python and TypeScript SDKs, good documentation, and a workbench for testing. For teams that need long context, value Anthropic's safety approach, or want an alternative to OpenAI's dominance, Claude is a compelling option.