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Meta's Llama AI team has been bleeding talent. See where all the top researchers have gone.

2025-05-26 09:00:00 英文原文

作者:Pranav Dixit

Timothee Lacroix, Arthur Mensch, Guillaume Lample Mistral AI.

Timothée Lacroix, Arthur Mensch, and Guillaume Lample are the co-founders of Mistral AI. Lacroix and Lample were two of the authors of Meta's original Llama paper. Khanh Renaud/ABACAPRESS.COM
  • Meta's AI team has faced a talent drain as key Llama model creators have exited.
  • The departures raise concerns about Meta's ability to retain top AI talent.
  • Meta's AI strategy is challenged by faster-moving open-source rivals like Mistral.

Meta's open-source Llama models helped define the company's AI strategy. Yet the researchers who built the original version have mostly moved on.

Of the 14 authors credited on the landmark 2023 paper that introduced Llama to the world, just three still work at Meta: research scientist Hugo Touvron, research engineer Xavier Martinet, and technical program leader Faisal Azhar. The rest have left the company, many of them to join or found its emerging rivals.

Meta's brain drain is most visible at Mistral, the Paris-based startup co-founded by former Meta researchers Guillaume Lample and Timothée Lacroix, two of Llama's key architects. Alongside several fellow Meta alums, they're building powerful open-source models that directly compete with Meta's flagship AI efforts.

The exits over time raise questions about Meta's ability to retain top AI talent just as it faces a new wave of external and internal pressure. The company is delaying its largest-ever AI model, Behemoth, after internal concerns about its performance and leadership, The Wall Street Journal reported. Llama 4, Meta's latest release, received a lukewarm reception from developers, many of whom now look to faster-moving open-source rivals like DeepSeek and Qwen for cutting-edge capabilities.

Meta Founder and CEO Mark Zuckerberg, left, speaks with Microsoft Chairman and CEO Satya Nadella at LlamaCon 2025

Meta founder and CEO Mark Zuckerberg, left, speaks with Microsoft chairman and CEO Satya Nadella at LlamaCon 2025. AP Photo/Jeff Chiu

Inside Meta, the research team has also seen a shake-up. Joelle Pineau, who led the company's Fundamental AI Research group (FAIR) for eight years, announced last month that she would step down. She will be replaced by Robert Fergus, who co-founded FAIR in 2014 and then spent five years at Google's DeepMind before rejoining Meta this month.

The leadership reshuffle follows a period of quiet attrition. Many of the researchers behind Llama's initial success have left FAIR since publishing their landmark paper, even as Meta continues to position the model family as central to its AI strategy. With so many of its original architects gone and rivals moving faster in open-source innovation, Meta now faces the challenge of defending its early lead without the team that built it.

That's particularly significant because the 2023 Llama paper was more than just a technical milestone. It helped legitimize open-weight large language models with underlying code and parameters that are freely available for others to use, modify, and build on, as viable alternatives to proprietary systems at the time, like OpenAI's GPT-3 and Google's PaLM.

Meta trained its models using only publicly available data and optimized them for efficiency, enabling researchers and developers to run state-of-the-art systems on a single GPU chip. For a moment, Meta looked like it could lead the open frontier.

Meta Chief Product Officer Chris Cox speaks at LlamaCon 2025

Meta chief product officer Chris Cox speaks at LlamaCon 2025. AP Photo/Jeff Chiu

Two years later, that lead has slipped, and Meta no longer sets the pace.

Despite investing billions into AI, Meta still doesn't have a dedicated "reasoning" model, one built specifically to handle tasks that require multi-step thinking, problem-solving, or calling external tools to complete complex commands. That gap has grown more noticeable as other companies like Google and OpenAI prioritize these features in their latest models.

The average tenure of the 11 departed authors at Meta was over five years, suggesting they weren't short-term hires but researchers deeply embedded in Meta's AI efforts. Some left as early as January 2023; others stayed through the Llama 3 cycle, and a few left as recently as this year. Together, their exits mark the quiet unraveling of the team that helped Meta stake its AI reputation on open models.

A Meta spokesperson pointed to an X post about Llama research paper authors who have left.

The list below, based on information from the researchers' LinkedIn profiles, shows where each of them ended up.

Naman Goyal

Current role: Member of Technical Staff at Thinking Machines Lab

Left Meta: February 2025

Time at Meta: 6 years, 7 months

Baptiste Rozière

Current role: AI Scientist at Mistral

Left Meta: August 2024

Time at Meta: 5 years, 1 month

Aurélien Rodriguez

Current role: Director, Foundation Model Training at Cohere

Left Meta: July 2024

Time at Meta: 2 years, 7 months

Eric Hambro

Current role: Member of Technical Staff at Anthropic

Left Meta: November 2023

Time at Meta: 3 years, 3 months

Timothée Lacroix

Timothee Lacroix Mistral AI

Timothée Lacroix, cofounder and CTO of Mistral AI. Benoit Tessier/REUTERS

Current role: Co-founder and CTO at Mistral

Left Meta: June 2023

Time at Meta: 8 years, 5 months

Marie-Anne Lachaux

Current role: Founding Member and AI Research Engineer at Mistral

Left Meta: June 2023

Time at Meta: 5 years

Thibaut Lavril

Current role: AI Research Engineer at Mistral

Left Meta: June 2023

Time at Meta: 4 years, 5 months

Armand Joulin

Current role: Distinguished Scientist at Google DeepMind

Left Meta: May 2023

Time at Meta: 8 years, 8 months

Gautier Izacard

Current role: Technical Staff at Microsoft AI

Left Meta: March 2023

Time at Meta: 3 years, 2 months

Edouard Grave

Current role: Research Scientist at Kyutai

Left Meta: February 2023

Time at Meta: 7 years, 2 months

Guillaume Lample

Guillaume Lample Mistral AI

Guillaume Lample, co-founder of Mistral AI. Khanh Renaud/ABACAPRESS.COM

Current role: Co-founder and Chief Scientist at Mistral

Left Meta: Early 2023

Time at Meta: 7 years

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摘要

Meta's AI team is experiencing significant talent loss, with many key creators of its Llama model leaving the company. Of the 14 authors credited in the original Llama paper from 2023, only three remain at Meta. Departing researchers have joined or founded startups like Mistral AI, challenging Meta’s leadership in open-source AI models. This exodus raises concerns about Meta's ability to retain top talent and maintain its competitive edge in AI innovation.

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