Pythia Chat Base 7B is an open-source language model by togethercomputer. Features: 7b LLM, VRAM: 13.8GB, Context: 2K, License: apache-2.0, HF Score: 39.8, LLM Explorer Score: 0.12, Arc: 40, HellaSwag: 68.7, MMLU: 27.4, TruthfulQA: 34.6, WinoGrande: 64, GSM8K: 4.1.
Model Card on HF 🤗: https://huggingface.co/togethercomputer/Pythia-Chat-Base-7B
Pythia Chat Base 7B Benchmarks
ARC: 40.02 vs 96.7 (so35)-58.6%
HellaSwag: 68.67 vs 95.3 (gpt4)-27.9%
MMLU: 27.44 vs 88.3 (so35)-68.9%
TruthfulQA: 34.63 vs 59 (gpt4)-41.3%
WinoGrande: 64.01 vs 87.5 (gpt4)-26.8%
GSM8K: 4.09 vs 96.4 (so35)-95.8%
LLME Score: 0.11623
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)
Pythia Chat Base 7B Parameters and Internals
| LLM Name | Pythia Chat Base 7B |
| Repository 🤗 | https://huggingface.co/togethercomputer/Pythia-Chat-Base-7B |
| Model Size | 7b |
| Required VRAM | 13.8 GB |
| Updated | 2026-03-25 |
| Maintainer | togethercomputer |
| 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 | 4.21.1 |
| Tokenizer Class | GPTNeoXTokenizer |
| Vocabulary Size | 50432 |
| Torch Data Type | float16 |
Best Alternatives to Pythia Chat Base 7B
Best Alternatives |
Context / RAM |
Downloads |
Likes |
|---|---|---|---|
| Literature 7B 16384 | 16K / 36 GB | 9 | 15 |
| RedPajama 7B 16384 | 16K / 36 GB | 6 | 4 |
| Stablelm Tuned Alpha 7B | 4K / 31.9 GB | 1811 | 360 |
| Stablelm Base Alpha 7B | 4K / 31.9 GB | 2547 | 208 |
| Stablelm 7B Sft V7 Epoch 3 | 4K / 32.4 GB | 670 | 67 |
| StableLManticore 7B | 4K / 16 GB | 6 | 1 |
| Pythia 6.9B Deduped 4K | 4K / 27.2 GB | 8 | 10 |
| Stablelm 7B | 4K / 31.9 GB | 1 | 2 |
| RedPajama INCITE 7B Instruct | 2K / 13.8 GB | 1858 | 108 |
| Open Calm 7B | 2K / 13.9 GB | 935 | 205 |
Note: green Score (e.g. "73.2") means that the model is better than togethercomputer/Pythia-Chat-Base-7B .
Rank the Pythia Chat Base 7B Capabilities
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Original data from HuggingFace, OpenCompass and various public git repos.
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Release v20260328a