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allenai/
G_post_LQK_8kv_8k_14k

Name: G_post_LQK_8kv_8k_14k
Availability: InStock

transformers

apache-2.0

endpoints_compatible

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Model Summary

This is one of the models from the OlmPool set of architectural variations. The final checkpoint for each model is a 7-8B model that has been trained to 150B tokens (140B in pretraining and 10B in context extension). Note that these models are early in pretraining with little-to-no instruction-format data, and thus are very poor at most tasks.

For more information about OlmPool, see the paper: http://allenai.org/papers/olmpool.

Use

You must specify a revision and set use_remote_code=True to load OlmPool models. The revision is the checkpoint that you would like to load. For instance, to load the final post-context-extension model:

python

from transformers import AutoModel
import torch

DEVICE = "cuda" if torch.cuda.is_available() else "cpu"

model = AutoModel.from_pretrained("allenai/G_post_LQK_8kv_8k_14k", revision="longcontext-step2385", use_remote_code=True).to(DEVICE)

You can list all revisions/branches by installing huggingface-hub & running:

python

from huggingface_hub import list_repo_refs
out = list_repo_refs("allenai/G_post_LQK_8kv_8k_14k")
branches = [b.name for b in out.branches]

Important branches:

step34000: Final pretraining checkpoint
longcontext-step2385: Final long context checkpoint

Citation

bibtex

@misc{bertsch2026cracks,
    title={Cracks in the Foundation: Seemingly Minor Architectural Choices Impact Long Context Extension},
    author={Amanda Bertsch and Luca Soldaini and Matthew R. Gormley and Graham Neubig and Hanna Hajishirzi and Kyle Lo and Dirk Groeneveld},
    year={2026},
}

License

This model is licensed under Apache 2.0. It is intended for research and educational use in accordance with Ai2's Responsible Use Guidelines.