Claude.ai is a conversational AI assistant and a family of large language models (LLMs) developed by Anthropic, an AI safety and research company founded by former OpenAI employees, including siblings Dario and Daniela Amodei. Launched in 2023, Claude is designed to be “helpful, harmless, and honest”, focusing on advanced reasoning, high-quality writing, coding, and, as of 2024–2025, agentic “computer use” capabilities.