PeopleofSuperintelligence

Researcher

Gustavo de Rosa

Gustavo de Rosa is a computer scientist whose work spans natural-language processing, neural architecture search and small language models. He earned computer-science degrees at UNESP, visited the University of Virginia as a biomedical engineering student in 2017, and completed a PhD focused on natural-language processing and adversarial learning. At Microsoft Research, he contributed to Archai and coauthored papers on phi-1, Phi-4 and Phi-4-reasoning. In August 2026, he coauthored “Full-bandwidth transformer”; as of October 2026, he is a Member of Technical Staff in Microsoft Research’s AI Frontiers lab.

Timeline

  1. 2016

    A computer science degree

    At UNESP’s FC/Bauru, he earns a Bachelor of Computer Science in 2016 and discovers an interest in artificial intelligence through work in a research laboratory.

  2. 2017

    Visiting student at UVA

    In 2017, he is a visiting biomedical engineering student at the University of Virginia.

  3. 2018

    A master's in computer science

    At UNESP’s IBILCE/Rio Preto, he earns an MSc in computer science in 2018, building expertise in image processing, pattern recognition, machine-learning algorithms and meta-heuristic optimization.

  4. 2022

    A PhD in language processing

    His PhD at UNESP’s FC/Bauru focuses on natural language processing and adversarial learning; he completes it in 2022.

  5. 2023

    Archai and phi-1

    At Microsoft Research, he helps create and maintain Archai, a platform for neural architecture search. He also coauthors “Textbooks Are All You Need,” which introduces phi-1, a 1.3-billion-parameter code model trained with textbook-quality web data and synthetic exercises.

  6. 2024

    The Phi-4 report

    In 2024, he coauthors the Phi-4 Technical Report, which introduces a 14-billion-parameter language model with a training recipe focused on data quality and synthetic data.

  7. January 2025–April 2025

    Phi-4-reasoning at Microsoft

    In January 2025, he is a Senior Research Engineer at Microsoft and discusses development of the Phi model family. In April 2025, he coauthors Phi-4-reasoning, a 14-billion-parameter reasoning model fine-tuned with curated prompts and demonstrations generated using o3-mini.

  8. As of October 2026

    Member of Technical Staff

    In August 2026, he coauthors “Full-bandwidth transformer,” which feeds a transformer’s top-layer hidden state into the next decoding step. As of October 2026, he is a Member of Technical Staff in Microsoft Research’s AI Frontiers lab in Redmond.

  1. Google had the most people shaping AI every year from 2014 to 2025Our estimates of which organizations employed the most people shaping AI from 1961 to 2025, with a year-by-year chart.
  2. The United States employs an estimated 53% of people in our data with a known employment countryOur estimates of where AI careers are concentrated now and how countries’ shares of dated positions changed over time.
  3. 46% of living people in our data with known birth and employment countries work outside their birth countryOur estimate of cross-border careers in AI, from country of birth and the country of each current organization.
  4. More people shaping AI studied at Massachusetts Institute of Technology than at any other institutionOur estimates of where the people shaping AI studied and where their careers led, from education records in cited biographies.

Sources and credits

Photo: We have no published photo of Gustavo de Rosa yet. Send us a free-licensed photo.

  1. Gustavo de Rosa microsoft.com. Checked 19 October 2026.
  2. People imagedatascience.com. Checked 19 October 2026.
  3. Contact — Archai microsoft.github.io. Checked 19 October 2026.
  4. Textbooks Are All You Need arxiv.org. Checked 19 October 2026.
  5. Phi-4 Technical Report arxiv.org. Checked 19 October 2026.
  6. Phi-4-reasoning Technical Report arxiv.org. Checked 19 October 2026.
  7. 114: Desenvolvendo os modelos Phi-4, com Gustavo de Rosa, Pesquisador da Microsoft hipsters.network. Checked 19 October 2026.
  8. Full-bandwidth transformer arxiv.org. Checked 19 October 2026.
  9. Gustavo de Rosa gugarosa.github.io. Checked 19 October 2026.