Most AI models are developed behind closed doors with unclear documentation and limited visibility into the training data.

The most transparent model of the 10, according to the researchers, was LLaMA 2, with a score of 54 percent. GPT-4 received the third-highest transparency score, at 40 percent, the same as PaLM 2.

The Foundation Model Transparency Index found Meta’s Llama 2 to be the most transparent. Even so, 10 of the most popular models still fall short of transparency metrics.

Mozilla and a cohort of nearly 50 nonprofit organizations, AI firms, and academic researchers have signed and sent a letter to the US Department of Commerce's Secretary Gina Raimondo, advocating ...