LLM EXPLORER 62,007 MODELS INDEXED

Apertus V1.1 1.5B by swiss-ai

By swiss-ai · 152 downloads
HF Repo ↗ Copy URL

Apertus V1.1 1.5B is an open-source language model by swiss-ai. Features: 1.5b LLM, VRAM: 3GB, Context: 4K, License: apache-2.0, LLM Explorer Score: 0.22.

  Arxiv:2509.14233   Arxiv:2605.29128   Apertus   Compliant   Endpoints compatible   Multilingual   Region:us   Safetensors   Swiss-ai
Model Card on HF 🤗: https://huggingface.co/swiss-ai/Apertus-v1.1-1.5B 

Apertus V1.1 1.5B Parameters and Internals

LLM NameApertus V1.1 1.5B
Repository 🤗https://huggingface.co/swiss-ai/Apertus-v1.1-1.5B 
Model Size1.5b
Required VRAM3 GB
Updated2026-07-02
Maintainerswiss-ai
Model Typeapertus
Model Files  3.0 GB
Model ArchitectureApertusForCausalLM
Licenseapache-2.0
Context Length4096
Model Max Length4096
Transformers Version4.57.6
Tokenizer ClassPreTrainedTokenizerFast
Vocabulary Size131072

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Note: green Score (e.g. "73.2") means that the model is better than swiss-ai/Apertus-v1.1-1.5B.