Hermes 4 Technical Report

Teknium, Roger Jin, Jai Suphavadeeprasit, dmayhem93, Jeffrey Quesnelle, Joe Li, Chen Guang, Shannon Sands, Karan Malhotra

Hermes 4 Technical Report: 54 upvotes on Hugging Face Daily Papers, #4 of 23 papers on 2025-08-26. Day-by-day upvote history.

We present Hermes 4, a family of hybrid reasoning models that combine structured, multi-turn reasoning with broad instruction-following ability. We describe the challenges encountered during data curation, synthesis, training, and evaluation, and outline the solutions employed to address these challenges at scale. We comprehensively evaluate across mathematical reasoning, coding, knowledge, comprehension, and alignment benchmarks, and we report both quantitative performance and qualitative behavioral analysis. To support open research, all model weights are published publicly at https://huggingface.co/collections/NousResearch/hermes-4-collection-68a731bfd452e20816725728

Paper page on Hugging Face · arXiv

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