Jyoti Aneja
Member of Technical Staff at Microsoft Research AI Frontiers; co-lead of Phi-4-reasoning-vision-15B
- Member of Technical Staff, AI Frontiers team, Microsoft Research123
Jyoti Aneja is a Member of Technical Staff on the Microsoft Research AI Frontiers team. Aneja's site says Aneja co-led Phi-4-reasoning-vision, a 15B multimodal reasoning model, and was a core contributor to Phi-4, Phi-3, Phi-2 and Phi-1. Aneja is the first-listed author of the Phi-4-reasoning-vision-15B technical report and of the March 2026 Microsoft Research blog post on lessons from training the model. Aneja joined Microsoft in November 2021 after a PhD at the University of Illinois Urbana-Champaign advised by Alex Schwing.123
Career
Aneja trained in physics before moving to machine learning, earning master's degrees in physics and then a PhD at the University of Illinois Urbana-Champaign in 2021, advised by Alex Schwing and working closely with David Forsyth. Aneja joined Microsoft Research in November 2021, with research at the intersection of computer vision, deep learning and natural language processing.12
Phi models
Aneja's site lists core contributions to Microsoft's Phi-1, Phi-2, Phi-3 and Phi-4 small language models, and Aneja appears on the author list of the December 2024 Phi-4 technical report. Aneja co-led Phi-4-reasoning-vision-15B, a compact open-weight multimodal reasoning model; the March 2026 Microsoft Research post by Aneja and colleagues describes its vision encoder and image-processing choices, data curation, and the use of a mixture of reasoning and non-reasoning training data.143
Work
Phi-4-reasoning-vision-15BOpen weights
Co-led the model and is first-listed author of its technical report and of the Microsoft Research post describing how it was trained.13
Phi-4 (external site: arxiv.org)Open weights
Core contributor to Phi-4 and listed among the authors of the Phi-4 technical report.14
Career timeline
Related people
More sourced profiles at the same organization, in the same field, or from the same school.
- Adam FourneyAlso at Microsoft Research
- Ali FarhadiAlso from UIUC
- Arvind KrishnaAlso from UIUC
- Andreas C. MüllerAlso at Microsoft
- Xiaodong HeAlso at Microsoft Research
- Chris LattnerAlso from UIUC
- Bin XiaoAlso at Microsoft
- Aditya RameshMultimodal models
- David ForsythAlso from UIUC
- Charles LamannaAlso at Microsoft
- Alec RadfordLanguage models
- Graham NeubigAlso from UIUC
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