Anthropic
SFounded in 2021 by former OpenAI researchers, Anthropic built Claude โ a family of LLMs distinguished by emphasis on safety, interpretability, and helpfulness. The company pioneered Constitutional AI, a technique for aligning models using AI-generated feedback. Their research on mechanistic interpretability is among the most rigorous anywhere. Claude models are widely used in enterprise and developer applications. Tone: safety-first, measured, research-focused communications; avoids hype, emphasizes responsible development.