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Yi 1.5 9B Chat by 01-ai

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Yi 1.5 9B Chat is an open-source language model by 01-ai. Features: 9b LLM, VRAM: 17.7GB, Context: 4K, License: apache-2.0, HF Score: 69.6, LLM Explorer Score: 0.29, Arc: 63.7, HellaSwag: 80.9, MMLU: 71, TruthfulQA: 52.7, WinoGrande: 77.2, GSM8K: 71.9.

  Arxiv:2403.04652   Conversational   Deploy:azure   Endpoints compatible   Llama   Region:us   Safetensors   Sharded   Tensorflow
Model Card on HF 🤗: https://huggingface.co/01-ai/Yi-1.5-9B-Chat 

Yi 1.5 9B Chat Benchmarks

MMLU Pro: 33.06
GPQA: 11.3
MUSR: 12.84
BBH: 36.95
IFEval: 60.46 vs 88 (so35)-31.3%
ARC: 63.65 vs 96.7 (so35)-34.2%
HellaSwag: 80.94 vs 95.3 (gpt4)-15.1%
MMLU: 71.01 vs 88.3 (so35)-19.6%
TruthfulQA: 52.67 vs 59 (gpt4)-10.7%
WinoGrande: 77.19 vs 87.5 (gpt4)-11.8%
GSM8K: 71.87 vs 96.4 (so35)-25.4%
MATH Lvl 5: 22.58
LLME Score: 0.2889
nn.n% — How the model compares to the reference models: Anthropic Sonnet 3.5 ("so35"), GPT-4o ("gpt4o") or GPT-4 ("gpt4").
Yi 1.5 9B Chat (01-ai/Yi-1.5-9B-Chat)
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Yi 1.5 9B Chat Parameters and Internals

Model Type 
Chat, Base
Training Details 
Data Volume:
500B tokens (pre-trained)
Methodology:
Fine-tuned on 3M diverse samples
LLM NameYi 1.5 9B Chat
Repository 🤗https://huggingface.co/01-ai/Yi-1.5-9B-Chat 
Model Size9b
Required VRAM17.7 GB
Updated2026-01-18
Maintainer01-ai
Model Typellama
Model Files  4.9 GB: 1-of-4   5.0 GB: 2-of-4   5.0 GB: 3-of-4   2.8 GB: 4-of-4
Model ArchitectureLlamaForCausalLM
Licenseapache-2.0
Context Length4096
Model Max Length4096
Transformers Version4.40.0
Tokenizer ClassLlamaTokenizer
Padding Token<unk>
Vocabulary Size64000
Torch Data Typebfloat16

Quantized Models of the Yi 1.5 9B Chat

Model
Likes
Downloads
VRAM
...5 9B Chat Quantized Merge 4Bit0534 GB
Yi 1.5 9B Chat AWQ0105 GB
Yi 1.5 9B Chat GGUF84933 GB
Yi 1.5 9B Chat GGUF41483 GB
Yi 1.5 9B Chat GGUF21153 GB
Yi 1.5 9B Chat IMat GGUF0912 GB

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Rank the Yi 1.5 9B 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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