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Shengjia Zhao

Chief Scientist for the new lab effort (as stated by Meta in July 2025), Meta

Shengjia Zhao is a researcher at Meta. On its July 30, 2025 earnings call, Meta said Zhao was Chief Scientist for the new lab effort within Meta Superintelligence Labs, and Zhao is listed among the senior contributors to Meta's May 2026 Muse Spark Safety & Preparedness Report and the Code World Model Preparedness Report. Earlier, Zhao contributed to OpenAI models: the GPT-4 Technical Report credits Zhao as reward model lead, and the OpenAI o1 System Card lists Zhao among the foundational contributors to reasoning research.12345

At a glance

Current role
Chief Scientist for the new lab effort (as stated by Meta in July 2025)
Company
Meta
Sector
Company
Education
Stanford, Tsinghua
Work listed
3
Sources cited
9
Profile reviewed

OpenAI

Zhao is credited in the GPT-4 Technical Report (2023) as reward model lead and among contributors to flagship training runs, ChatGPT evaluations and model-graded evaluation infrastructure. Zhao is also listed among the authors of the GPT-4o System Card (2024), and the OpenAI o1 System Card (2024) names Zhao among the foundational contributors to reasoning research.465

Zhao's name also appears in the author lists of OpenAI's gpt-oss-120b and gpt-oss-20b model card (August 2025) and the GPT-5 System Card.78

Meta Superintelligence Labs

On Meta's July 30, 2025 earnings call, Meta described a new lab effort within Meta Superintelligence Labs, with Alexandr Wang leading the overall team, Nat Friedman leading AI products and applied research, and Zhao as Chief Scientist. In 2026 Zhao was listed among the senior contributors to Meta's Code World Model Preparedness Report and Muse Spark Safety & Preparedness Report, and among the authors of the Muse Glimmer 30B on-device agentic model report.1329

Work and contributions

  • Muse Spark Safety & Preparedness Report Published research

    Listed among the senior contributors of Meta's report on pre-launch risk evaluations of Muse Spark, Meta's large language model.2

  • GPT-4 Proprietary product

    The GPT-4 Technical Report credits Zhao as reward model lead and lists Zhao among contributors to flagship training runs, ChatGPT evaluations, and model-graded evaluation infrastructure.4

  • OpenAI o1 Proprietary product

    Listed among the foundational contributors to reasoning research in the OpenAI o1 System Card.5

Timeline

  1. Credited as reward model lead in the GPT-4 Technical Report.4
  2. Listed among the authors of the GPT-4o System Card.6
  3. Named among the foundational contributors to reasoning research in the OpenAI o1 System Card.5
  4. Meta announced Zhao as Chief Scientist of a new lab effort within Meta Superintelligence Labs.1
  5. Listed among the authors of the gpt-oss-120b and gpt-oss-20b model card.7
  6. Listed among the senior contributors to Meta's Muse Spark Safety & Preparedness Report.2
  7. Listed among the authors of the Muse Glimmer 30B technical report.9

Other documented roles

Roles the sources document that are not confirmed as current.

  • Researcher (GPT-4 reward model lead; o1 foundational contributor), OpenAI45

Where they work

  • Meta 106 people in the wiki

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References

9 sources · profile reviewed Oct 21, 2026 · data updated Oct 21, 2026

  1. Meta Platforms, Inc. Second Quarter 2025 Results Conference Call (transcript)Meta Platforms, Inc. · Filing · published Jul 30, 2025 · accessed Oct 21, 2026
  2. Muse Spark Safety & Preparedness Report (arXiv 2606.12429)arXiv · Paper · published May 14, 2026 · accessed Oct 21, 2026
  3. Code World Model Preparedness Report (arXiv 2605.00932)arXiv · Paper · published May 2026 · accessed Oct 21, 2026
  4. GPT-4 Technical Report (arXiv 2303.08774), contributions sectionarXiv · Paper · published Mar 15, 2023 · accessed Oct 21, 2026
  5. OpenAI o1 System Card (arXiv 2412.16720), authorship sectionarXiv · Paper · published Dec 21, 2024 · accessed Oct 21, 2026
  6. GPT-4o System Card (arXiv 2410.21276)arXiv · Paper · published Oct 25, 2024 · accessed Oct 21, 2026
  7. gpt-oss-120b & gpt-oss-20b Model Card (arXiv 2508.10925)arXiv · Paper · published Aug 8, 2025 · accessed Oct 21, 2026
  8. OpenAI GPT-5 System Card (arXiv 2601.03267)arXiv · Paper · published Dec 19, 2025 · accessed Oct 21, 2026
  9. Muse Glimmer 30B: An On-Device Agentic Model (arXiv 2610.24628)arXiv · Paper · published Oct 17, 2026 · accessed Oct 21, 2026