Researcher

Emily de Oliveira Santos

Emily de Oliveira Santos is a researcher whose work connects category theory with AI evaluation. She and Fosco Loregian posted a 2020 preprint on higher-arity coends, and she coauthored FrontierMath in 2024 and Humanity's Last Exam in 2025. In March 2026, she contributed to HLE research at USP's ICMC. As of October 2026, she works in project operations at Surge AI.

Links
LinkedIn and GitHub

Timeline

  1. 2020

    Coends of higher arity

    She and Fosco Loregian post the arXiv preprint “Coends of higher arity” in 2020. It develops higher-arity ends and coends and connects them to new phenomena in category theory.

  2. 2024

    FrontierMath benchmark

    She coauthors the 2024 FrontierMath paper, which introduces a benchmark of hundreds of original, exceptionally challenging mathematics problems crafted and vetted by expert mathematicians to evaluate AI reasoning.

  3. 2025

    Humanity's Last Exam

    She coauthors Humanity's Last Exam in 2025, a multi-modal academic benchmark at the frontier of human knowledge with broad subject coverage.

  4. March 2026

    HLE research at ICMC-USP

    In March 2026, she contributes to HLE research at USP's ICMC alongside Felipe Meneguitti Dias and Benedito Alves de Oliveira Junior.

  5. As of October 2026

    Project operations at Surge AI

    As of October 2026, she works in project operations at Surge AI and values the company's emphasis on quality.

Sources and credits

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  1. Coends of higher arity arxiv.org. Checked 19 October 2026.
  2. FrontierMath: A Benchmark for Evaluating Advanced Mathematical Reasoning in AI arxiv.org. Checked 19 October 2026.
  3. Humanity's Last Exam arxiv.org. Checked 19 October 2026.
  4. Ferramenta aberta busca medir exatidão de respostas da inteligência artificial - Medicina S/A medicinasa.com.br. Checked 19 October 2026.
  5. Emily de Oliveira Santos topological-modular-forms.github.io. Checked 19 October 2026.
  6. Research Fellowship | Surge AI surgehq.ai. Checked 19 October 2026.