ChatGPT is a large language model (LLM) chatbot developed by OpenAI. It is one of the most popular LLM chatbots on the market, and it is known for its ability to generate realistic and engaging conversations. However, ChatGPT is also a proprietary model, which means that it is not open-source and cannot be freely modified or redistributed.

In recent years, there has been a growing interest in open-source LLM chatbots. These models are typically developed by academic researchers and released under open-source licenses, which means that they can be freely modified and redistributed by anyone. This makes them a more accessible and affordable option for developers who want to create their own LLM chatbots.

Two of the most popular open-source LLM chatbots are Llama and Vicuna. Llama is a 7B parameter model developed by Meta AI, while Vicuna is a 13B parameter model developed by a team of researchers from UC Berkeley, CMU, Stanford, and UC San Diego. Both models are based on the transformer architecture, which is a state-of-the-art neural network architecture for natural language processing.

Vicuna fine-tuned model of Llama are competitive with ChatGPT in terms of both accuracy and fluency. In a recent study, Vicuna was found to be 92% as accurate as ChatGPT on a set of natural language inference tasks. Additionally, both models were able to generate realistic and engaging conversations in a variety of different contexts.

One of the advantages of using open-source LLM chatbots is that they are more customizable than proprietary models. For example, developers can modify the training data, architecture, and hyperparameters of an open-source model to better suit their specific needs. This makes it possible to create LLM chatbots that are more accurate, fluent, and engaging.

Another advantage of using open-source LLM chatbots is that they are more affordable than proprietary models. Proprietary models are typically sold as a commercial products, which can be expensive. Open-source models, on the other hand, are freely available to anyone who wants to use them.

Overall, Llama and Vicuna are two promising open-source alternatives to ChatGPT. They are both accurate, fluent, and engaging, and they are more customizable and affordable than proprietary models. If you are looking for an LLM chatbot to develop your applications, then Llama and Vicuna are worth considering.

In addition to the advantages mentioned above, open-source LLM chatbots also have the following benefits:

• They are more transparent. Developers can inspect the code and training data of open-source models, which can help them to better understand how the models work and how they can be improved.

• They are more secure. Open-source models are not subject to the same security risks as proprietary models. This is because the code and training data of open-source models are available to anyone, which makes it more difficult for malicious actors to exploit security vulnerabilities.

• They are more ethical. Open-source models are not subject to the same ethical concerns as proprietary models. This is because the code and training data of open-source models are available to anyone

If you are looking for an LLM chatbot, then open-source models are a good option to consider.