olmo3

[chapman20j]

Resolves #126

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• I have read the Contribution Guidelines and used pre-commit hooks to format this commit.
• I have added all the necessary unit tests for my change. (run_model.py for model usage, test_outputs.py and/or model_validation_colab.ipynb for quality).
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[jenriver]

Could you relax the tolerance to 1e-5 and ensure the numeric tests do pass on CI?