What is Checkpoint Model?
A saved state of a fully trained AI model. The complete model weights that can be loaded for generation or used as a base for fine-tuning.
How it works
A checkpoint is the complete set of neural network weights that define a trained model. Loading a checkpoint into compatible software gives you access to that model's capabilities. Checkpoints are large files (2-10 GB typically) and represent the full model state. In the open-source AI ecosystem, checkpoints are shared on platforms like Hugging Face. You can download checkpoints and run them locally. Fine-tuning starts from a checkpoint and creates a modified version. Understanding checkpoints is essential for working with open-source tools like LTX Video and Flux Schnell.
Tools that use checkpoint model
Related terms
Frequently asked questions
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