
Jack RaeResearcher
Meta
AI Research Scientist (MSL)
via Meta
Researcher
Staff Research Scientist, Llama Core Team at Meta
Mihaylov helps curate the enormous training datasets behind Meta's Llama models. He contributed to Llama 2, 3 and 4 and to OPT, one of the earliest openly released language-model families at very large scale, connecting data quality with model capability.
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Last editorial review: August 9, 2026