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Pieter Delobelle

@pieter.ai
114 followers 160 following 10 posts

Lead AI scientist at Pleias & guest professor at KU Leuven LLM pretraining 🥖, data, tokenization & AI safety ex: Aleph Alpha (acc. by cohere), apple

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Pieter Delobelle @pieter.ai · 17/03/2026
proud to share one of the first projects I worked on at Pleias in collaboration with NVIDIA: Nemotron-Personas-France we release an open source synthetic dataset of 1 million French personas, covering the full demographic profile (e.g. age-sex pyramids, income and education, ...).
pleias x nvidia
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Pieter Delobelle @pieter.ai · 24/04/2025
If you are at #ICLR25 and care about tokenizers, drop by Aleph Alpha’s Birds of a Feather session – happening now at Opal 103.
Picture of a crowd listening to our awesome introduction of the session “towards tokenizer-free end to end architectures”
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