Paris-Based Arlequin AI Raises €28M Series A for Topological Neural Networks

Arlequin AI closed a €28M Series A co-led by redalpine and OTB Ventures, with Bpifrance's Defence Innovation Fund, Vsquared, 10x Founders and Xavier Niel participating. The Paris startup — founded by CEO Hugo Micheron and CTO Antoine Jardin — is building proprietary models on topological neural networks, an architecture that captures relationships across documents, transactions, video and operational data while claiming to require less compute than large-scale LLMs.