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Oasst Sft 1 Pythia 12B by OpenAssistant

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Oasst Sft 1 Pythia 12B is an open-source language model by OpenAssistant. Features: 12b LLM, VRAM: 23.8GB, Context: 2K, License: apache-2.0, LLM Explorer Score: 0.13, Arc: 46.4, HellaSwag: 70, MMLU: 26.2, GSM8K: 0.6.

  Deploy:azure   En   Endpoints compatible   Gpt neox   Pytorch   Region:us   Sft   Sharded
Model Card on HF 🤗: https://huggingface.co/OpenAssistant/oasst-sft-1-pythia-12b 

Oasst Sft 1 Pythia 12B Benchmarks

ARC: 46.42 vs 96.7 (so35)-52%
HellaSwag: 70 vs 95.3 (gpt4)-26.5%
MMLU: 26.19 vs 88.3 (so35)-70.3%
GSM8K: 0.61 vs 96.4 (so35)-99.4%
LLME Score: 0.12818
nn.n% — How the model compares to the reference models: Anthropic Sonnet 3.5 ("so35"), GPT-4o ("gpt4o") or GPT-4 ("gpt4").
Oasst Sft 1 Pythia 12B (OpenAssistant/oasst-sft-1-pythia-12b)
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Oasst Sft 1 Pythia 12B Parameters and Internals

LLM NameOasst Sft 1 Pythia 12B
Repository 🤗https://huggingface.co/OpenAssistant/oasst-sft-1-pythia-12b 
Model Size12b
Required VRAM23.8 GB
Updated2026-05-15
MaintainerOpenAssistant
Model Typegpt_neox
Model Files  9.8 GB: 1-of-3   9.9 GB: 2-of-3   4.1 GB: 3-of-3
Supported Languagesen
Model ArchitectureGPTNeoXForCausalLM
Licenseapache-2.0
Context Length2048
Model Max Length2048
Transformers Version4.26.1
Tokenizer ClassGPTNeoXTokenizer
Vocabulary Size50288
Torch Data Typefloat16

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Note: green Score (e.g. "73.2") means that the model is better than OpenAssistant/oasst-sft-1-pythia-12b.

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