EleutherAI is a non-profit AI research organization focused on open-source large language models and the decentralization of AI technology. It is best known for creating the GPT-Neo and GPT-NeoX model series as open-source alternatives to proprietary transformers.
Brand Authority Index (BAI): 72/100
Archetype: Challenger
Category: Artificial Intelligence Research
https://optimly.ai/brand/eleutherai-gpt-neojneox
Last analyzed: April 11, 2026
Founded: 2020
Headquarters: Decentralized / San Francisco, CA