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Apertus V1.1 4B Instruct by swiss-ai

By swiss-ai · 1103 downloads
HF Repo ↗ Copy URL

Apertus V1.1 4B Instruct is an open-source language model by swiss-ai. Features: 4b LLM, VRAM: 7.7GB, Context: 4K, License: apache-2.0, Instruction-Based, LLM Explorer Score: 0.26.

  Arxiv:2509.14233   Arxiv:2605.29128   Apertus Base model:finetune:swiss-ai/a... Base model:swiss-ai/apertus-v1...   Compliant   Conversational   Endpoints compatible   Instruct   Multilingual   Region:us   Safetensors   Sharded   Swiss-ai   Tensorflow
Model Card on HF 🤗: https://huggingface.co/swiss-ai/Apertus-v1.1-4B-Instruct 

Apertus V1.1 4B Instruct Parameters and Internals

LLM NameApertus V1.1 4B Instruct
Repository 🤗https://huggingface.co/swiss-ai/Apertus-v1.1-4B-Instruct 
Base Model(s)  swiss-ai/Apertus-v1.1-4B   swiss-ai/Apertus-v1.1-4B
Model Size4b
Required VRAM7.7 GB
Updated2026-08-03
Maintainerswiss-ai
Model Typeapertus
Instruction-BasedYes
Model Files  5.0 GB: 1-of-2   2.7 GB: 2-of-2
Model ArchitectureApertusForCausalLM
Licenseapache-2.0
Context Length4096
Model Max Length4096
Transformers Version4.57.6
Tokenizer ClassPreTrainedTokenizerFast
Padding Token<pad>
Vocabulary Size131072

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