constitutional ai

Anthropic is the AI safety company behind Claude, founded in 2021 by ex-OpenAI researchers. Governance, funding, research, models, and criticism explained.

How LLMs learn to be helpful: RLHF, RLAIF, DPO, and Constitutional AI compared. Methods used by ChatGPT, Claude, Llama, and open models.

What AI alignment means, the evidence on failures like reward hacking, the main techniques from RLHF to interpretability, and where researchers disagree.