Anton Lozhkov
Machine learning engineer at Hugging Face; first author of StarCoder 2 and co-author of FineWeb and SmolLM2
- Machine Learning Engineer, Hugging Face1
Anton Lozhkov is a machine learning engineer at Hugging Face. Lozhkov is first author of the StarCoder 2 and The Stack v2 paper (2024), which introduced the StarCoder2 code models including StarCoder2-3B, and a co-author of the FineWeb datasets paper (2024) and the SmolLM2 paper (2025).1256
Code models
Lozhkov is first author of "StarCoder 2 and The Stack v2: The Next Generation" (February 2024), a BigCode paper whose authors span Hugging Face, ServiceNow Research, NVIDIA and other institutions; the paper lists Lozhkov's affiliation as Hugging Face. StarCoder2-3B, one of the models it introduced, was trained on 17 programming languages from The Stack v2.234
Data and small models
Work
StarCoder2-3BOpen weights
First author of the StarCoder 2 paper (2024), which introduced StarCoder2-3B, a model trained on 17 programming languages from The Stack v2.24
FineWebOpen data
Co-author of "The FineWeb Datasets: Decanting the Web for the Finest Text Data at Scale" (2024).5
SmolLM2Open weights
Second author of the SmolLM2 paper (2025), on data-centric training of a small language model.6
StarCoder2-15BOpen weights
First author of the StarCoder 2 paper, which introduced StarCoder2-15B and which the model card cites.27
Career timeline
Related people
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- Adrien GallouëtAlso at Hugging Face
- Albert JiangLanguage models
- Clément DelangueAlso at Hugging Face
- Alexander WettigLanguage models
- Colin RaffelAlso at Hugging Face
- Ali GhodsiDatasets and data
- Daniel BeveniusAlso at Hugging Face
- Andriy MulyarLanguage models
- Edward BeechingAlso at Hugging Face
- Aran KomatsuzakiLanguage models
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