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Sailor 0.5B Chat by sail

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Sailor 0.5B Chat is an open-source language model by sail. Features: 0.5b LLM, VRAM: 1.2GB, Context: 32K, License: apache-2.0, Instruction-Based, LLM Explorer Score: 0.16, Arc: 30.4, HellaSwag: 45.5, MMLU: 26.7, GSM8K: 1.8.

  Arxiv:2404.03608 Base model:finetune:sail/sailo...   Base model:sail/sailor-0.5b   Chat   Conversational Dataset:cohereforai/aya collec... Dataset:cohereforai/aya datase...   Dataset:open-orca/openorca   En   Id   Instruct   Instruction   Lo   Ms   Multilingual   Qwen2   Region:us   Safetensors   Sailor   Sea   Sft   Th   Vi   Zh
Model Card on HF 🤗: https://huggingface.co/sail/Sailor-0.5B-Chat 

Sailor 0.5B Chat Benchmarks

ARC: 30.38 vs 96.7 (so35)-68.6%
HellaSwag: 45.51 vs 95.3 (gpt4)-52.2%
MMLU: 26.73 vs 88.3 (so35)-69.7%
GSM8K: 1.82 vs 96.4 (so35)-98.1%
LLME Score: 0.16456
nn.n% — How the model compares to the reference models: Anthropic Sonnet 3.5 ("so35"), GPT-4o ("gpt4o") or GPT-4 ("gpt4").
Sailor 0.5B Chat (sail/Sailor-0.5B-Chat)
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Sailor 0.5B Chat Parameters and Internals

LLM NameSailor 0.5B Chat
Repository 🤗https://huggingface.co/sail/Sailor-0.5B-Chat 
Base Model(s)  sail/Sailor-0.5B   sail/Sailor-0.5B
Model Size0.5b
Required VRAM1.2 GB
Updated2026-05-09
Maintainersail
Model Typeqwen2
Instruction-BasedYes
Model Files  1.2 GB
Supported Languagesen zh id th vi ms lo
Model ArchitectureQwen2ForCausalLM
Licenseapache-2.0
Context Length32768
Model Max Length32768
Transformers Version4.37.2
Tokenizer ClassQwen2Tokenizer
Padding Token<|endoftext|>
Vocabulary Size151936
Torch Data Typebfloat16
Errorsreplace

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Note: green Score (e.g. "73.2") means that the model is better than sail/Sailor-0.5B-Chat.

Rank the Sailor 0.5B Chat 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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