Jason Wei
Jason Wei is a researcher at Meta Superintelligence Labs. He worked at Google Brain from an October 2020 residency and at OpenAI from 2023 to 2025. His shared research includes simple text augmentation, instruction tuning, and chain-of-thought prompting. The prompting paper tested examples that showed intermediate reasoning steps on defined reasoning tasks. He also co-authored a study of abilities the authors called emergent as models grew. Later work included SimpleQA and BrowseComp, focused tests for short factual answers and difficult web searches. These projects connect methods for eliciting model behavior with checks on the results.
- Works
- 34
- Citations
- 6,677
- h-index
- 20
Publication numbers from OpenAlex, as of 14 October 2026.
Timeline
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2019
Expanding small text datasets
Wei and Kai Zou published Easy Data Augmentation in 2019.
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October 2020
Google Brain residency
Wei joined Google Brain as an AI resident in October 2020.
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2021
Instruction tuning
Wei was first author of FLAN’s instruction tuning paper in 2021.
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2022
Chain-of-thought prompting
Wei was first author of chain-of-thought prompting in 2022.
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2024–2025
Checking factuality and browsing
Wei co-authored SimpleQA in 2024 and BrowseComp in 2025.
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As of October 2026
Meta Superintelligence Labs
Wei works at Meta Superintelligence Labs.
Sources and credits
Photo: Jason Wei; image supplied by www.jasonwei.net. License: Not stated by source. Source: jasonwei.net. Cropped to a square and resized. Ask us to remove or replace this photo.
- Jason Wei: personal site
- Jason Wei: dated CV
- EDA: Easy Data Augmentation Techniques for Boosting Performance on Text Classification Tasks
- Finetuned Language Models Are Zero-Shot Learners
- Chain-of-Thought Prompting Elicits Reasoning in Large Language Models
- Emergent Abilities of Large Language Models
- Measuring Short-Form Factuality in Large Language Models
- BrowseComp: A Simple Yet Challenging Benchmark for Browsing Agents