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PTH File - What is a .pth file and how do I open it?
Learn about .PTH files and view a list of programs that open them.
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What is a PTH file? A PTH file is a machine learning model created using PyTorch, an open-source machine learning library. It contains algorithms used to automatically perform a task, such as upscaling or identifying an image. PTH files can be used in a variety of machine learning and algorithm-related applications, but are most commonly used to upscale images.
More Information PyTorch is a Python-based machine learning library that allows developers to create machine learning models. Developers save PyTorch models using the torch.save(model, PATH) command. Typically, PyTorch models are saved as .PT or PTH files. PTH files are meant to be used to perform a task. For example, many image upscaling applications use the algorithms that PTH files contain to increase an image's size while retaining its original quality. Typically, these applications will allow you to select and import a PTH file and use the file to perform a task.
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Developer4D
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.PTH File Extension
2 file types use the .pth file extension.
PyTorch Model
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4.4 | 10 Votes |
What is a PTH file?
A PTH file is a machine learning model created using PyTorch, an open-source machine learning library. It contains algorithms used to automatically perform a task, such as upscaling or identifying an image. PTH files can be used in a variety of machine learning and algorithm-related applications, but are most commonly used to upscale images.
More Information
PyTorch is a Python-based machine learning library that allows developers to create machine learning models. Developers save PyTorch models using the torch.save(model, PATH) command. Typically, PyTorch models are saved as .PT or PTH files.
PTH files are meant to be used to perform a task. For example, many image upscaling applications use the algorithms that PTH files contain to increase an image's size while retaining its original quality. Typically, these applications will allow you to select and import a PTH file and use the file to perform a task.
How to open a PTH file
PTH files are not meant to be opened. Instead, they are meant to be integrated or imported into an application, where they can be trained further or used to perform a task.
Developers using PyTorch (multiplatform) can load a PTH file using the model = torch.load(PATH) command. Users attempting to import a PTH file into an application should follow that application's instructions for importing a PTH file. For example, Cupscale (Windows) users can import a PTH file using the application's Model 1 and Model 2 selection boxes.
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Programs that open or reference PTH files
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ESRGAN
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Image_Upscaling_Algorithms
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PyTorch
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ESRGAN
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Image_Upscaling_Algorithms
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Category: Developer Files
Updated: June 2, 2022
4D Path Document
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A PTH file may also be a connection configuration file used by 4D, a relational database management system. It stores information that allows a 4D client to connect to a 4D Server database without having to enter connection details manually each time. PTH files contain the server address, database location, port information, and login credentials, such as a username and password.
More Information
The PTH format is designed to simplify database access, particularly in environments where multiple clients repeatedly connect to the same server. System administrators and developers often use PTH files to distribute standardized connection settings to end users or to configure client machines in corporate or team-based environments.
NOTE: Because the file contains sensitive information such as usernames and passwords, you should handle it securely.
How to open a PTH file
You can open PTH files with 4D client software. Loading the file in 4D automatically configures the client to connect to the specified server and database.
Programs that open or reference PTH files
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Category: Misc Files
Updated: January 8, 2026