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Yi-Coder
by 01.AI
About the model:
Arguable that Yi-6B is the base model instead, since Yi-9B was created from Yi-6B. Unclear whether the code model was based on the regular 9B model or the context-length-extended one.
Model type:
Code
Model performance class:
Latest
Link to the model:
https://huggingface.co/01-ai/Yi-Coder-9B-Chat
Base models:
Yi-9B
End model:
Yi-Coder-9B-Chat
End model license:
Apache-2.0
About the organisation:
Chinese AI start-up.
Link to the organisation:
https://www.01.ai/
Model release date:
July 2024
Availability
Base Model Data
Pretraining data only described as coming from 'various sources'.
https://arxiv.org/pdf/2403.04652
End User Model Data
No information found about data sources of the end model.
Base Model Weights
Weights made available through HuggingFace.
https://huggingface.co/01-ai/Yi-9B
End User Model Weights
Weights made available through HuggingFace.
https://huggingface.co/01-ai/Yi-Coder-9B-Chat
Training Code
GitHub repo does not appear to contain training code.
https://github.com/01-ai/Yi
Documentation
Code Documentation
No training code, so no documentation.
https://github.com/01-ai/Yi
Hardware Architecture
Hardware architecture seemingly only described for Yi-VL series of models.
https://arxiv.org/pdf/2403.04652
Preprint
Preprint made available on arXiv.
https://arxiv.org/pdf/2403.04652
Paper
No peer-reviewed paper found.
Modelcard
Model card only provides a high-level introduction and usage instructions.
https://huggingface.co/01-ai/Yi-Coder-9B-Chat
Datasheet
No datasheet found.
Access
Licenses
Apache-2.0, an OSI-approved license.
https://huggingface.co/01-ai/Yi-Coder-9B-Chat
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09 April 2026
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