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Apertus 1.5 Release Notes

L4 · DeveloperModels & ReleasesHugging Face Blog· 10/15/2026

Provides technical details on architecture changes and training process for developers working with multimodal models.

AI Summary

Apertus 1.5 adds image/audio understanding, 262k , thinking mode, and improved tool use to the open-source 8B/70B models.

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