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Connor Leahy

Original nameConnor Leahy

American AI Researcher, Co-Founder of EleutherAI

The Names Remembered · Small Roles, Famous Names

The EleutherAI Open-Source Large-Model CommunityA Shift in AI-Safety StanceConjecture

Who they are

Connor Leahy is an American AI researcher who in 2020 co-founded EleutherAI, an open-source community of volunteers aiming to open to the public the large-language-model training technology and model weights previously held by only a few tech giants, its early open-source models thereafter widely used in academic research and independent-developer projects. Leahy’s later stance underwent a rather intriguing shift — he gradually came to hold that indiscriminately open-sourcing ever more powerful models might bring unforeseeable misuse and safety risk, and turned to founding the AI-safety-focused company Conjecture, becoming one of the advocates publicly calling for stricter regulation of frontier AI model development, this shift from "open-source idealist" to "safety-caution advocate" also reflecting from the side the ongoing dispute within the AI industry over the tension between open source and safety.

Primary sourcesEleutherAI’s official project introductionLeahy’s public interviews and position statements

Key stories

The Turn From "Open-Source Evangelist" to "Regulation Advocate"

Leahy’s original intent in founding EleutherAI was to break the situation of large-language-model technology being monopolized by only a few tech giants and let a broader body of researchers and developers access frontier model technology. But as model capability kept leaping, he gradually grew worried about the unforeseeable misuse risk indiscriminate open-sourcing might bring, and turned to advocate stricter industry regulation, and the mental journey of this shift of stance is itself one of the most vivid individual cases for examining the dispute of "open source vs. safety."

Relationships

Ally

🧵Paul Christiano

Nemesis

🎨Emad Mostaque

Echoes today

Below are how modern works borrow or reinterpret this name or story — not the original material. The two differ, so keep them apart.

The turn from "open-source idealist" to "regulation advocate"The course of the shift of Leahy’s own position thereafter became one of the most vivid individual cases for examining the industry dispute of "which weighs more, open source or safety," often cited by media and researchers for discussion.

Appears in

Algorithmic Bias and the Awakening of AI EthicsThe Rise and the Dilemma of the Open-Source Large-Model Community

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