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H2ogpt Oasst1 512 12B by h2oai

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H2ogpt Oasst1 512 12B is an open-source language model by h2oai. Features: 12b LLM, VRAM: 23.9GB, Context: 2K, License: apache-2.0, LLM Explorer Score: 0.12, Arc: 42.3, HellaSwag: 70.2, MMLU: 26, GSM8K: 1.7.

Dataset:h2oai/openassistant oa...   En   Gpt   Gpt neox   Open-source   Pytorch   Region:us   Sharded
Model Card on HF 🤗: https://huggingface.co/h2oai/h2ogpt-oasst1-512-12b 

H2ogpt Oasst1 512 12B Benchmarks

ARC: 42.32 vs 96.7 (so35)-56.2%
HellaSwag: 70.24 vs 95.3 (gpt4)-26.3%
MMLU: 26.01 vs 88.3 (so35)-70.5%
GSM8K: 1.67 vs 96.4 (so35)-98.3%
LLME Score: 0.11515
nn.n% — How the model compares to the reference models: Anthropic Sonnet 3.5 ("so35"), GPT-4o ("gpt4o") or GPT-4 ("gpt4").
H2ogpt Oasst1 512 12B (h2oai/h2ogpt-oasst1-512-12b)
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H2ogpt Oasst1 512 12B Parameters and Internals

Model Type 
large language model, instruction-following
Supported Languages 
languages_supported (en), proficiency_level (unknown)
Training Details 
Data Sources:
h2oai/openassistant_oasst1_h2ogpt_graded
Methodology:
Using the fine-tuning dataset
Context Length:
2048
Model Architecture:
GPTNeoXForCausalLM
Input Output 
Input Format:
text
Accepted Modalities:
text
Output Format:
text
Performance Tips:
To use effectively, adhere to setup guidelines such as using specific software versions identified in the model card.
LLM NameH2ogpt Oasst1 512 12B
Repository 🤗https://huggingface.co/h2oai/h2ogpt-oasst1-512-12b 
Model Size12b
Required VRAM23.9 GB
Updated2026-05-24
Maintainerh2oai
Model Typegpt_neox
Model Files  5.0 GB: 1-of-5   4.8 GB: 2-of-5   4.9 GB: 3-of-5   5.0 GB: 4-of-5   4.2 GB: 5-of-5
Supported Languagesen
Model ArchitectureGPTNeoXForCausalLM
Licenseapache-2.0
Context Length2048
Model Max Length2048
Transformers Version4.28.1
Tokenizer ClassGPTNeoXTokenizer
Vocabulary Size50688
Torch Data Typefloat16

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Note: green Score (e.g. "73.2") means that the model is better than h2oai/h2ogpt-oasst1-512-12b.

Rank the H2ogpt Oasst1 512 12B 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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