Apertus 1.5 Release Notes

Automated excerpt

As with every Apertus release, the models are fully open: open weights, open data, open values, and full training details. Apertus 1. 5 multimodal performance is competitive in spatial understanding among open-weight models and document/chart understanding among open-source models. Project Apertus, et al. “Apertus 1. 5: From Open Text Models to Open Multimodal Reasoners. ” arXiv:2610. 15542.

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