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Apertus SEA LION V4 8B IT by aisingapore

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Apertus SEA LION V4 8B IT is an open-source language model by aisingapore. Features: 8b LLM, VRAM: 16.1GB, Context: 64K, License: apache-2.0, Instruction-Based, LLM Explorer Score: 0.28.

  Arxiv:2306.05685   Arxiv:2311.07911   Arxiv:2502.14301   Apertus Base model:finetune:swiss-ai/a... Base model:swiss-ai/apertus-8b...   Conversational   En   Endpoints compatible   Fil   Id   Instruct   Ms   My   Region:us   Safetensors   Sharded   Ta   Tensorflow   Th   Vi   Zh
Model Card on HF 🤗: https://huggingface.co/aisingapore/Apertus-SEA-LION-v4-8B-IT 

Apertus SEA LION V4 8B IT Benchmarks

LLME Score: 0.27611
nn.n% — How the model compares to the reference models: Anthropic Sonnet 3.5 ("so35"), GPT-4o ("gpt4o") or GPT-4 ("gpt4").
Apertus SEA LION V4 8B IT (aisingapore/Apertus-SEA-LION-v4-8B-IT)
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Apertus SEA LION V4 8B IT Parameters and Internals

LLM NameApertus SEA LION V4 8B IT
Repository 🤗https://huggingface.co/aisingapore/Apertus-SEA-LION-v4-8B-IT 
Base Model(s)  swiss-ai/Apertus-8B-Instruct-2509   swiss-ai/Apertus-8B-Instruct-2509
Model Size8b
Required VRAM16.1 GB
Updated2026-05-28
Maintaineraisingapore
Model Typeapertus
Instruction-BasedYes
Model Files  5.0 GB: 1-of-4   4.9 GB: 2-of-4   5.0 GB: 3-of-4   1.2 GB: 4-of-4
Supported Languagesen zh vi id th ta ms my
Model ArchitectureApertusForCausalLM
Licenseapache-2.0
Context Length65536
Model Max Length65536
Transformers Version4.57.1
Tokenizer ClassPreTrainedTokenizerFast
Padding Token<pad>
Vocabulary Size131072

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Apertus 8B Instruct 2509 Bf1664K / 16.1 GB1285
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Rank the Apertus SEA LION V4 8B IT Capabilities

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Instruction Following and Task Automation  
Factuality and Completeness of Knowledge  
Censorship and Alignment  
Data Analysis and Insight Generation  
Text Generation  
Text Summarization and Feature Extraction  
Code Generation  
Multi-Language Support and Translation  

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