Oasst Sft 4 Pythia 12B Epoch 3.5 is an open-source language model by OpenAssistant. Features: 12b LLM, VRAM: 23.8GB, Context: 2K, License: apache-2.0, HF Score: 41.3, LLM Explorer Score: 0.23, ELO: 908, Arc: 45.7, HellaSwag: 68.6, MMLU: 26.8, TruthfulQA: 37.8, WinoGrande: 65.9, GSM8K: 3.
Model Card on HF 🤗: https://huggingface.co/OpenAssistant/oasst-sft-4-pythia-12b-epoch-3.5
Oasst Sft 4 Pythia 12B Epoch 3.5 Benchmarks
LMSys ELO: 908 vs 1272 (so35)-28.6%
ARC: 45.73 vs 96.7 (so35)-52.7%
HellaSwag: 68.59 vs 95.3 (gpt4)-28%
MMLU: 26.82 vs 88.3 (so35)-69.6%
TruthfulQA: 37.81 vs 59 (gpt4)-35.9%
WinoGrande: 65.9 vs 87.5 (gpt4)-24.7%
GSM8K: 3.03 vs 96.4 (so35)-96.9%
LLME Score: 0.22648
nn.n% — How the model compares to the reference models: Anthropic Sonnet 3.5 ("so35"), GPT-4o ("gpt4o") or GPT-4 ("gpt4").
What is the LLM Explorer Rank (Score)
Oasst Sft 4 Pythia 12B Epoch 3.5 Parameters and Internals
| LLM Name | Oasst Sft 4 Pythia 12B Epoch 3.5 |
| Repository 🤗 | https://huggingface.co/OpenAssistant/oasst-sft-4-pythia-12b-epoch-3.5 |
| Model Size | 12b |
| Required VRAM | 23.8 GB |
| Updated | 2026-03-29 |
| Maintainer | OpenAssistant |
| Model Type | gpt_neox |
| Model Files | |
| Supported Languages | en |
| Model Architecture | GPTNeoXForCausalLM |
| License | apache-2.0 |
| Context Length | 2048 |
| Model Max Length | 2048 |
| Transformers Version | 4.28.0.dev0 |
| Tokenizer Class | GPTNeoXTokenizer |
| Vocabulary Size | 50288 |
| Torch Data Type | float16 |
Best Alternatives to Oasst Sft 4 Pythia 12B Epoch 3.5
Best Alternatives |
Context / RAM |
Downloads |
Likes |
|---|---|---|---|
| Dolly V2 12B | 2K / 23.8 GB | 3283 | 1955 |
| Pythia 12B | 2K / 23.8 GB | 36490 | 144 |
| Oasst Rl 1 Pythia 12B | 2K / 23.8 GB | 3 | 4 |
| Oasst Sft 1 Pythia 12B | 2K / 23.8 GB | 1396 | 278 |
| Pythia 12B Deduped | 2K / 23.8 GB | 4764 | 52 |
| Instruct 12B | 2K / 47.6 GB | 2569 | 16 |
| Pythia 12B Sft V8 7K Steps | 2K / 23.8 GB | 1784 | 22 |
| Pythia 12B Sft V8.2.5K Steps | 2K / 23.8 GB | 1651 | 0 |
| Oasst Pythia 12B Reference | 2K / 23.8 GB | 2545 | 0 |
| H2ogpt Gm Oasst1 En 1024 12B | 2K / 23.8 GB | 1433 | 5 |
Note: green Score (e.g. "73.2") means that the model is better than OpenAssistant/oasst-sft-4-pythia-12b-epoch-3.5 .
Rank the Oasst Sft 4 Pythia 12B Epoch 3.5 Capabilities
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Original data from HuggingFace, OpenCompass and various public git repos.
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Release v20260328a