Claude is built by Anthropic, an AI safety company, and stands out from other AI assistants through its ability to process extremely long documents — up to hundreds of thousands of tokens — with high accuracy and recall. This makes it uniquely suited for tasks like analyzing full legal contracts, summarizing research papers, reviewing lengthy codebases, and producing detailed long-form content. Claude is widely regarded for producing more nuanced, thoughtful, and human-like written output compared to many alternatives.

Its responses tend to be careful, well-reasoned, and calibrated — it will admit uncertainty rather than confidently hallucinate. Claude Pro and the API give access to the most capable Claude models, which rank among the top-performing AI models across reasoning, coding, and writing benchmarks. Teams use Claude for customer support, content pipelines, research summarization, and coding assistance.