Which GPT Model Is Open Source?

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Which GPT Model Is Open Source?

Which GPT Model Is Open Source?

With the rise of natural language processing and AI-driven technologies, various Generative Pre-trained Transformer (GPT) models have gained significant attention. However, the status of their openness is crucial for developers, researchers, and enthusiasts. Let’s explore which GPT models are open source.

Key Takeaways

  • OpenAI has released the code and weights for GPT-2 and GPT-3.
  • Hugging Face has a library that provides access to various GPT models available for use.
  • DeepMind’s GPT models are not open source, as of now.

OpenAI’s GPT Models

OpenAI has been at the forefront of open-source AI models. They have made both GPT-2 and its successor, GPT-3, available to the community. This means that developers can access the code and pre-trained weights for these models, enabling them to build upon and extend the capabilities of GPT-2 and GPT-3.

GPT-2 and GPT-3 from OpenAI are open source, encouraging innovation and community involvement.

Hugging Face’s GPT Models

Hugging Face, a popular AI library and platform, offers a comprehensive set of GPT models through their Transformers library. While Hugging Face provides access to various GPT models, it is important to note that the actual models themselves may not always be open source. However, the library acts as a bridge, allowing developers to use and interact with a wide range of GPT models, open source or otherwise.

Hugging Face’s Transformers library provides access to numerous GPT models, regardless of their open source status.

GPT Models by DeepMind

DeepMind, a subsidiary of Alphabet Inc., has made significant advancements in AI research and development. However, at present, their GPT models are not open source. This means that the code and pre-trained weights for DeepMind’s GPT models are not publicly available, limiting exploration and development by the wider community.

DeepMind’s GPT models are not open source, but their research contributions continue to shape AI development.

GPT Model Comparison

GPT Model Open Source
GPT-2 Yes
GPT-3 Yes
DeepMind’s GPT models No


OpenAI has made significant strides in open-sourcing their GPT models, with both GPT-2 and GPT-3 being available to the community. Hugging Face’s library provides access to numerous GPT models, regardless of their open source status. On the other hand, DeepMind’s GPT models are not currently open source, restricting wider exploration and development. Understanding the availability of open source GPT models empowers developers and researchers to leverage AI advancements and contribute to the field.

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Common Misconceptions

1. Open Source GPT Models

Many people mistakenly believe that all GPT models are open source and freely available for public use. However, this is not the case as only a specific version of GPT, known as GPT-2, is open source. Other variations such as GPT-3 and subsequent models are not open source.

  • GPT-2 is the only open source GPT model.
  • GPT-3 and later versions are not open source.
  • OpenAI released GPT-2 to foster research and innovation in the AI community.

2. Free Accessibility of Open Source Model

Another misconception is that the open-source GPT-2 model is freely accessible to anyone without any restrictions. While GPT-2’s code and weights are available for public use, the model is subject to certain usage policies and ethical guidelines set by OpenAI.

  • GPT-2’s accessibility is subject to copyright and usage policies.
  • OpenAI encourages responsible and ethical use of GPT-2.
  • Any modifications or improvements to GPT-2 should also be open-sourced.

3. Open Sourcing All GPT Models

Some individuals wrongly assume that with the open-source release of GPT-2, OpenAI will continue to open source all future GPT models. This is a misconception as OpenAI’s decision to open-source a specific model may vary depending on various factors, including associated risks and societal impacts.

  • OpenAI’s decision to open source models depends on multiple factors.
  • Future GPT models may not be open sourced.
  • OpenAI focuses on balancing access, safety, and societal considerations.

4. Open Source Implying Free Commercial Use

Many individuals assume that the open-source nature of GPT-2 implies free commercial use and unrestricted access to its capabilities. However, OpenAI restricts the commercial use of GPT-2 by imposing licensing conditions to ensure responsible usage and prevent misuse.

  • GPT-2’s open-source nature doesn’t mean unrestricted commercial use.
  • OpenAI licenses GPT-2 for commercial applications.
  • Commercial use requires permission and adherence to OpenAI’s guidelines.

5. Equating Open Source with Less Capable Models

A common misconception is equating open-source GPT models with being less capable or less advanced compared to proprietary models. The open-source nature of GPT-2 doesn’t imply any compromise in the model’s quality or performance.

  • Open-source GPT models can still be highly capable and performant.
  • GPT-2’s quality and performance are not compromised due to being open source.
  • The quality of a model is determined by various factors other than its open-source status.
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Table: GPT Models and Open Source Availability

Here is a list of various GPT models and their availability as open source:

GPT Model Open Source Availability
GPT-1 No
GPT-2 Yes
GPT-3 No
GPT-4 Yes

The above table shows that GPT-1 and GPT-3 models are not open source, whereas GPT-2 and GPT-4 models are available as open source.

Table: GPT Models and Number of Trained Parameters

Take a look at the different GPT models and the number of parameters they possess:

GPT Model Number of Parameters
GPT-1 117 million
GPT-2 1.5 billion
GPT-3 175 billion
GPT-4 320 billion

The table above displays the exponential growth in the number of trained parameters as newer versions of GPT models are developed. GPT-4 holds an impressive 320 billion parameters.

Table: GPT Models and Their Original Developers

Explore the original developers behind various GPT models:

GPT Model Original Developer
GPT-1 OpenAI
GPT-2 OpenAI
GPT-3 OpenAI
GPT-4 OpenAI

The above table provides insight into the fact that GPT models, including GPT-4, were developed by OpenAI.

Table: GPT Models and the Year of Initial Release

Discover when each GPT model was initially released:

GPT Model Year of Initial Release
GPT-1 2018
GPT-2 2019
GPT-3 2020
GPT-4 2023

The table above showcases the progression of GPT models with each subsequent model being released after a year’s gap.

Table: GPT Models and their Training Datasets

Explore the training datasets utilized for different GPT models:

GPT Model Training Dataset
GPT-1 Books
GPT-2 Books, Websites
GPT-3 Internet
GPT-4 Books, Internet, Articles

The above table showcases the evolution of training datasets utilized for GPT models, with GPT-4 incorporating a wider range of sources.

Table: GPT Models and Their Language Capabilities

Discover the language capabilities of different GPT models:

GPT Model Language Capabilities
GPT-1 English
GPT-2 English, German, French, Spanish, Chinese
GPT-3 English, German, French, Spanish, Chinese, Russian
GPT-4 Multiple languages, including rare and ancient ones

The table above displays the progression in language capabilities, with GPT-4 surpassing other models and covering a wide range of languages, even rare and ancient ones.

Table: GPT Models and Their Use in Industry

Explore the industry sectors where different GPT models have found applications:

GPT Model Industry Applications
GPT-2 Content generation, writing assistance
GPT-3 Language translation, chatbots, content creation
GPT-4 Medical research, AI-driven decision-making

The above table highlights the expanding applications of GPT models, with GPT-4 making strides in the medical field and AI-driven decision-making.

Table: GPT Models and Their Public Reception

Discover how the public has responded to different GPT models:

GPT Model Public Reception
GPT-1 Moderate interest
GPT-2 Controversial due to potential misuse
GPT-3 Excitement and awe
GPT-4 Awaited with high expectations

The table above highlights the varying public reception to different GPT models, with GPT-2 causing controversy, while GPT-3 and GPT-4 garnering significant interest and anticipation.


In this article, we explored the world of GPT models and their open source availability, number of trained parameters, original developers, release years, training datasets used, language capabilities, industry applications, public reception, and more. It is evident that GPT models have continuously evolved, with each subsequent model surpassing the capabilities of its predecessor. GPT-2 and GPT-4 models stand out for being available as open source, containing an impressive number of trained parameters, and showing promising applications in various industries. As GPT models continue to advance, they bring about excitement, awe, and anticipation for their potential to revolutionize the AI landscape.

Frequently Asked Questions

Frequently Asked Questions

Which GPT model is open source?

GPT-2 is the open source model released by OpenAI. It has been made available for public use under the OpenAI Codex License.

What is the difference between GPT-2 and GPT-3?

GPT-2 and GPT-3 are both language models developed by OpenAI. However, GPT-3 is a more advanced and larger model compared to GPT-2. It has significantly more parameters and capabilities.

Can I use the open source GPT-2 model for commercial purposes?

Yes, the GPT-2 model released by OpenAI is available for commercial use under the OpenAI Codex License. However, it is always advised to review and comply with the licensing terms before using it commercially.

Are there any limitations or restrictions when using the open source GPT-2 model?

Yes, there are certain limitations and restrictions when using the open source GPT-2 model. Some of these include not using it to generate inappropriate content, misleading information, or any content that violates ethical or legal guidelines.

How can I access and download the open source GPT-2 model?

To access and download the open source GPT-2 model, you can visit OpenAI’s official GitHub repository. There, you will find the necessary instructions, code, and resources to get started.

Are there any tutorials or documentation available for the open source GPT-2 model?

Yes, OpenAI provides tutorials, documentation, and other helpful resources to guide users in utilizing the open source GPT-2 model. These resources can be found on their official website and GitHub repository.

Can I modify the open source GPT-2 model to suit my specific needs?

Yes, the open source GPT-2 model can be modified to suit specific needs. However, it is important to respect the licensing terms and ensure compliance with any applicable legal or ethical guidelines when making modifications.

What programming languages can be used to work with the open source GPT-2 model?

The open source GPT-2 model can be used with various programming languages. Some popular options include Python, TensorFlow, and PyTorch. It is recommended to choose a language that you are comfortable with and that is compatible with the model’s requirements.

Can I contribute to the development of the open source GPT-2 model?

Yes, OpenAI actively welcomes contributions from the community towards the development of the open source GPT-2 model. You can contribute by providing feedback, reporting issues, submitting improvements, or even participating in the model’s development process.

Is the open source GPT-2 model suitable for all types of natural language processing tasks?

The open source GPT-2 model can be applied to a wide range of natural language processing tasks. However, its specific suitability depends on the nature and complexity of the task. It is recommended to explore and evaluate the model’s performance for your specific use case.