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In today’s fast-paced digital landscape, using open-source ChatGPT models can significantly boost productivity by streamlining tasks and improving communication. This blog post delves into the exciting world of large language models, specifically focusing on ChatGPT and its versatile applications.

We will explore six of the best open-source ChatGPT alternatives available to help you achieve your goals more efficiently than ever before.

Explain GPT and Large Language Models

GPT, or Generative Pre-trained Transformer, is an advanced machine learning model developed by OpenAI. It belongs to a category of AI models called Large Language Models, which are designed to understand, generate, and manipulate human-like text based on a vast amount of training data.

The GPT model is built on the Transformer architecture, which was introduced by Vaswani et al. in a 2017 paper titled “Attention Is All You Need.” Transformers employ self-attention mechanisms to process and analyze input data, allowing them to capture long-range dependencies and complex patterns in text effectively.

Large Language Models like GPT are trained using a method called unsupervised learning. They learn by predicting the next word in a sentence, given the context of the preceding words. This process is called language modeling. During training, these models are exposed to a diverse range of text from the internet, books, articles, and other sources, which helps them acquire a broad understanding of language, context, and knowledge across various domains.

In this post, we will specifically discuss Open-Source ChatGPT Models and their potential benefits for various applications. As a result, we will also present Open Source ChatGPT Alternatives that provide similar functionality and can be readily integrated into your projects.

GPT and other Large Language Models have numerous applications, such as:

  • Text generation: They can generate human-like text based on a given prompt, making them useful for tasks like creative writing, summarization, and content generation.
  • Text completion: They can predict missing or incomplete information in sentences, which can be helpful for tasks like code completion, translation, and error correction.
  • Sentiment analysis: They can classify text based on emotions or sentiments, enabling businesses to understand customer feedback and monitor social media.
  • Question-answering: They can provide relevant answers to user queries by understanding the context and content of a question, making them useful for chatbots, virtual assistants, and knowledge management systems.
  • Text classification: They can categorize and organize text by topics, genres, or other attributes, which can be applied to tasks like spam filtering, document classification, and content moderation.

To help you make the most of these capabilities, we have compiled a list of six Open Source ChatGPT Alternatives that can enhance your workflows and make your tasks more efficient.

Common Applications of GPT and Other Large Language Models

LLMs have a number of potential applications, including:

  • Natural language generation: LLMs can be used to generate text for a variety of purposes, such as writing articles, creating marketing materials, and generating customer service responses.
  • Translation: LLMs can be used to translate text from one language to another.
  • Text summarization: LLMs can be used to summarize long pieces of text into shorter, more concise versions.
  • Question answering: LLMs can be used to answer questions about a variety of topics.
  • Chatbots: LLMs can be used to create chatbots that can have conversations with humans.

Whether you choose to work with Open-Source ChatGPT Models or any of the Open Source ChatGPT Alternatives we’ve mentioned, you’ll find powerful tools to help you excel in the world of natural language processing and artificial intelligence. Embrace the potential of these advanced models to enhance your projects and achieve your goals more efficiently than ever before.

Journey of GPT Models

The journey of GPT models has seen significant advancements in natural language understanding and generation capabilities, which has also impacted the development of Open-Source ChatGPT Models. This progress is marked by a series of models released by OpenAI, starting with GPT and culminating in the latest version, GPT-4. Here is an overview of the evolution of GPT models:

GPT (Generative Pre-trained Transformer): Released in June 2018, the original GPT model was built on the Transformer architecture, introduced by Vaswani et al. in their 2017 paper “Attention Is All You Need.” GPT used unsupervised learning and a pre-training/fine-tuning approach, setting new benchmarks for various natural language processing tasks such as translation, summarization, and question-answering.


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GPT-2: Introduced in February 2019, GPT-2 improved upon its predecessor by increasing the model size, training data, and computational resources. With 1.5 billion parameters, GPT-2 showcased impressive text generation capabilities, but also raised concerns about potential misuse, leading OpenAI to initially withhold the release of the full model. They later released the full model in November 2019 after observing limited malicious use of the smaller versions.

GPT-3: Launched in June 2020, GPT-3 marked a significant leap in scale and performance. With 175 billion parameters, GPT-3 demonstrated a remarkable understanding of language and context. Its “few-shot learning” ability allowed it to perform a wide range of tasks with minimal training examples, making it useful for applications such as translation, code generation, and creative writing. GPT-3 also gained widespread attention and adoption through the OpenAI API, which enabled developers to build various applications using the model, including Open-Source ChatGPT Models.

GPT-4: The latest iteration in the series, GPT-4, continues to build upon the achievements of its predecessors. Although the knowledge cutoff for my training data is September 2021, GPT-4 is assumed to have further improvements in terms of model size, performance, and capabilities. It is likely to tackle some limitations of GPT-3, such as generating more accurate and contextually relevant responses and addressing safety concerns and biases present in the output. These advancements will also influence the development of Open Source ChatGPT Alternatives.

Relationship Between GPT, LLM and NLP

GPT (Generative Pre-trained Transformer), LLM (Large Language Models), and NLP (Natural Language Processing) are interconnected concepts within the field of artificial intelligence and language understanding. To explain their relationship, let’s first define each term:


GPT is a type of Large Language Model developed by OpenAI. It utilizes the Transformer architecture and is designed to understand, generate, and manipulate human-like text. Over time, GPT models have continued to evolve, with each iteration improving upon its predecessor in terms of size, performance, and capabilities.


LLMs, on the other hand, are a category of AI models that comprehend and generate human-like language. These models, which include GPT as well as other models like BERT and T5, are trained using unsupervised learning techniques and have shown impressive results across various NLP tasks such as translation, summarization, and sentiment analysis.


NLP is a subfield of artificial intelligence that concentrates on enabling computers to understand, interpret, and generate human language. This domain encompasses a wide range of tasks and techniques, including text analysis, sentiment analysis, machine translation, text summarization, and question-answering systems.

Now, let’s examine the relationship between GPT, LLM and NLP:

GPT is an instance of a Large Language Model and thus falls under the broader category of AI models designed to comprehend and generate human-like text. GPT models have made significant contributions to the progress and development of LLMs and have been influential in shaping the direction of research in this area.

Both GPT and LLMs are a part of the NLP domain, as they are used to perform various NLP tasks and contribute to the advancement of natural language understanding capabilities in artificial intelligence. GPT and other LLMs have achieved state-of-the-art results on many NLP benchmarks, pushing the boundaries of what AI can accomplish in language understanding and generation.

In conclusion, GPT, LLMs, and NLP are interconnected concepts within the field of artificial intelligence and language understanding. The development and applications of these concepts have driven significant advancements in the understanding and generation of human language by AI systems.

What is ChatGPT?

ChatGPT is an AI-powered conversational model that uses the GPT (Generative Pre-trained Transformer) architecture. It is designed to generate human-like text and engage in conversations by understanding context and providing relevant responses. ChatGPT can be used for a variety of applications, such as chatbots, virtual assistants, and customer support.

Key features of ChatGPT

Here are some of the key features of ChatGPT:

  • Natural language understanding: ChatGPT can comprehend and interpret human language, enabling it to provide contextually appropriate responses in a conversation.
  • Context-awareness: ChatGPT can maintain the context of a conversation across multiple turns, allowing it to engage in more coherent and meaningful interactions.
  • Text generation: ChatGPT can generate human-like text based on given prompts, which makes it suitable for tasks like creative writing, summarization, and content generation.
  • Wide range of applications: ChatGPT can be used for various purposes, including customer support, virtual assistants, content creation, and question-answering systems.
  • Customizability: Developers can fine-tune ChatGPT on specific domains or tasks, tailoring the model’s performance to better suit the desired application.


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Is ChatGPT Open Source?

While the GPT models that power ChatGPT are developed by OpenAI, the specific model configurations and training data used for various ChatGPT applications may not be entirely open source. OpenAI has released different versions of GPT models, including GPT-2, with varying degrees of accessibility for public use.

OpenAI provides an API for GPT-3, which allows developers to access and utilize the model’s capabilities for their applications. However, access to the API is not the same as having an open-source model, as developers cannot directly modify the model’s architecture or training process.

Reasons to Go For Open Source ChatGPT Alternatives Or Open-Source ChatGPT Models

There are several reasons one might consider going for open-source ChatGPT alternatives or Open-Source ChatGPT Models:

  • Customization: Open-source models, including Open Source ChatGPT Alternatives, allow developers to modify the model’s architecture, training process, and other aspects to better suit their specific needs. This flexibility can be advantageous for niche applications or when addressing particular challenges that may not be covered by the default ChatGPT model.
  • Cost-effectiveness: Open-source alternatives or Open-Source ChatGPT Models often do not have associated usage costs, making them more affordable for smaller businesses, individual developers, or academic researchers. On the other hand, using commercial APIs like OpenAI’s GPT-3 API might incur usage fees that could be a barrier for some users.
  • Community support: Open-source projects, including Open Source ChatGPT Alternatives, typically benefit from a strong developer community that contributes to the project’s growth, stability, and improvement. Access to this support network can be invaluable when addressing technical issues or seeking guidance on best practices.
  • Transparency: Open-source alternatives or Open-Source ChatGPT Models provide full visibility into the model’s architecture, training data, and other components, which may not be available with proprietary models. This transparency can be beneficial for understanding how the model works, identifying potential biases, and ensuring ethical AI development.
  • Control over data privacy: With open-source alternatives like Open Source ChatGPT Alternatives, developers have full control over where the model is hosted and how the data is processed. This can be an essential consideration for organizations with strict data privacy and security requirements.
  • Experimentation and research: Open-source models, including Open Source ChatGPT Alternatives, enable researchers and developers to experiment with different techniques, investigate the model’s inner workings, and contribute to the broader field of AI research.

Some open-source alternatives to ChatGPT or Open-Source ChatGPT Models include Hugging Face’s Transformers library, which provides access to various pre-trained models, including BERT, T5, and smaller GPT-2 models. These models can be fine-tuned and adapted to specific tasks or domains, offering a level of customization and flexibility that may be desirable for certain applications.

6 Best Open-Source ChatGPT Models

While there may not be direct open-source equivalents to ChatGPT, there are several open-source models and libraries available that can be used for building chatbots and conversational agents. Here are six popular open-source ChatGPT models:

#1. Alpaca

Alpaca is an advanced language model developed by Stanford researchers, leveraging the power of Facebook’s LLaMA. This cutting-edge model is adept at answering questions, reasoning, delivering jokes, and performing a myriad of functions typically expected from chatbots. Alpaca 7B, a refined version of Meta’s seven billion-parameter LLaMA language model, was fine-tuned with 52,000 instruction-following demonstrations to create a ChatGPT-like chatbot.

As an open-source chatbot, Alpaca can be run on a personal computer with a minimum of 8GB RAM and approximately 30GB of available storage space.

Key features of Alpaca

Here are some key features of Alpaca:

  • It is an open-source chatbot that can be run on your own PC.
  • It can be used for a variety of natural language processing tasks such as answering questions, reasoning, telling jokes, etc.
  • It is capable of following instructions from users to generate output.

#2. GPT4All

GPT4All is an open-source chatbot developed by Nomic AI Team that has been trained on a massive dataset of GPT-4 prompts. It is an ecosystem of open-source tools and libraries that enable developers and researchers to build advanced language models without a steep learning curve. GPT4All is capable of running offline on your personal devices.

Here are some key features of GPT4All:

  • It is an open-source chatbot that can be installed and run on your personal devices .
  • It has been trained on a massive dataset of GPT-4 prompts.
  • It provides users with an accessible and easy-to-use tool for diverse applications.
  • It enables developers and researchers to build advanced language models without a steep learning curve.


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#3. Cerebras-GPT

Cerebras-GPT is a family of open compute-efficient large language models developed by Cerebras Systems. It consists of six models with different parameter sizes ranging from 111M to 13B. All models are trained using the optimal training tokens for each model size and achieve the lowest loss per unit of compute across all model sizes.

Here are some key features of Cerebras-GPT:

  • It is a family of open compute-efficient large language models.
  • It consists of seven models with different parameter sizes.
  • All models are trained using the optimal training tokens for each model size.
  • It achieves the lowest loss per unit of computing across all model sizes.

#4. GPT-J 6B

GPT-J 6B is an open-source autoregressive language model developed by EleutherAI. It’s one of the most advanced Open-Source ChatGPT Models, performing well on a wide array of natural language tasks such as chat, summarization, and question answering. The model has 6 billion parameters and was trained on The Pile dataset.

Here are some key features of GPT-J 6B:

  • It is an open-source autoregressive language model.
  • It was developed by EleutherAI.
  • It performs well on a wide array of natural language tasks such as chat, summarization, and question answering.
  • It has 6 billion parameters.
  • It was trained on The Pile dataset.

#5. Jurassic-1 Jumbo

Introducing the Jurassic-1 Jumbo, a colossal language model developed by AI21 Labs, boasting an impressive 178 billion parameters. Ranking among the world’s largest Open-Source ChatGPT Models, this linguistic powerhouse is trained on an extensive dataset comprising both text and code. The Jurassic-1 Jumbo exhibits remarkable proficiency in tasks such as text generation, language translation, crafting diverse creative content, and providing insightful responses to your queries.

Here are some of the key features of Jurassic-1 Jumbo:

  • Immense Scale: With a staggering 178 billion parameters, the Jurassic-1 Jumbo stands as a substantial language model, enabling it to acquire vast amounts of information and generate text that surpasses the realism and coherence of those produced by smaller counterparts.
  • Open Source Access: As an open-source initiative, Jurassic-1 Jumbo’s code is readily accessible for public use and modification. This characteristic renders it an ideal choice for developers seeking to construct bespoke applications or research projects utilizing the Jurassic-1 Jumbo as one of the Open-Source ChatGPT Models.
  • Versatility in Function: The Jurassic-1 Jumbo’s capabilities span a wide array of tasks, encompassing text generation, translation, summarization, and answering questions.
  • Exceptional Performance: Jurassic-1 Jumbo is recognized for its high-performance nature, signifying its ability to generate text both rapidly and effectively.

#6. Megatron-Turing NLG

The Megatron-Turing NLG, a collaborative creation by Microsoft and NVIDIA, is a generative pre-trained transformer language model boasting an impressive 530 billion parameters. This places it among the world’s most extensive Open-Source ChatGPT Models. Trained on an immense collection of text and code, the Megatron-Turing NLG demonstrates versatility and competence in various applications such as text generation, translation, summarization, and answering questions.

MT-NLG owes its exceptional performance to the combined power of DeepSpeed and Megatron technologies. It proudly follows in the footsteps of its predecessors, Turing NLG 17B, and Megatron-LM.

Here’s a summary of the MT-NLG’s notable attributes:

  • Unparalleled monolithic transformer for the English language.
  • A colossal 530 billion parameters.
  • Employing a transformer-based architecture.
  • Exceeding previous best-in-class models in zero-shot, one-shot, and few-shot contexts.
  • Driven by the innovative DeepSpeed and Megatron platforms.
  • The evolutionary next step after Turing NLG 17B and Megatron-LM.

Bottom Line or Conclusion

In conclusion, Open-Source ChatGPT Models have revolutionized the way we work and communicate, providing a plethora of options to improve productivity. With the 7 best open-source ChatGPT alternatives available today, including Alpaca, Bloom, and Megatron-Turing NLG, the possibilities are endless.

Thanks to advancements in natural language processing and artificial intelligence technology, these Open-Source ChatGPT Models provide personalized solutions for scheduling tasks, generating content ideas, or automating the workflow.

The time-saving features also significantly enhance organizational efficiency by streamlining communication and allowing teams to focus on high-level strategic planning.

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