#14 What is Google’s Bard AI? How will it compare to ChatGBT?
Gene Da Rocha MSc BSc (Hons)
Generative AI Engineer @ Voxstar | Designing AI Solutions
Google's BERT-based model for dialogue generation, known as BART (Bidirectional Encoder Representations from Transformers), is an AI language model that has been trained to generate human-like responses to a given input or prompt. BART was introduced by Google AI Language in January 2021 and is designed to improve the quality and coherence of generated text by incorporating a pre-training process that enables the model to learn from large amounts of text data.
Like ChatGPT, BART is based on the transformer architecture, which allows it to generate high-quality responses by analyzing the context of the input and generating an appropriate response. However, there are some key differences between the two models.
One of the main differences is the type of training data that is used to train the models. While ChatGPT was trained on a large dataset of text scraped from the internet, BART was trained on a combination of several large datasets, including Wikipedia, BooksCorpus, and a collection of web pages called CommonCrawl. By training on such a diverse set of data sources, BART is able to generate more coherent and contextually relevant responses than ChatGPT.
Another key difference between the two models is the type of tasks they were trained to perform. While ChatGPT was trained primarily to generate natural language responses to a given prompt, BART was trained to perform a broader range of tasks, including summarization, translation, and even image captioning. This means that BART is more versatile than ChatGPT and can be used for a wider range of applications.
One of the most significant differences between the two models is the level of control that users have over the generated responses. With ChatGPT, users can input a prompt or question and the model will generate a response based on the context and training data. However, with BART, users can provide more specific input, such as a summary of a news article, and the model will generate a coherent and relevant summary in response.
Despite these differences, both ChatGPT and BART represent significant advances in natural language processing and AI language models. By incorporating increasingly large amounts of data and training the models to perform a wider range of tasks, these models are paving the way for more advanced and sophisticated AI systems that can better understand and respond to human language.
BART is based on transformer architecture, which is a type of neural network architecture that was first introduced in 2017. Transformers are designed to process sequential data, such as natural language, by using a series of attention mechanisms that allow the model to focus on the most relevant parts of the input.
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BART is a variant of another transformer-based model called GPT (Generative Pre-trained Transformer), which was developed by OpenAI. While GPT is primarily designed for generating natural language text, BART was designed to be a more versatile model that can perform a wider range of tasks.
To train BART, Google AI Language used a technique called pre-training, which involves training the model on large amounts of text data before fine-tuning it for specific tasks. BART was pre-trained on a combination of several large datasets, including Wikipedia, BooksCorpus, and a collection of web pages called CommonCrawl.
During pre-training, the model is trained to predict missing words in a given sentence or sequence of text, which helps it learn to understand the context and structure of natural language. This pre-training process allows the model to learn from a diverse range of text data, which helps it generate more coherent and contextually relevant responses.
In addition to pre-training, BART also incorporates a process called denoising autoencoding, which involves training the model to remove noise and inconsistencies from text data. This helps improve the quality and coherence of the generated responses by ensuring that the model is able to filter out irrelevant or incorrect information.
BART is designed to be a highly adaptable model that can be fine-tuned for a wide range of tasks, including language translation, summarization, and question-answering. This flexibility is due in part to the fact that BART was pre-trained on a diverse range of text data, which enables it to adapt to different types of input and generate relevant responses.
Overall, BART represents a significant advance in natural language processing and AI language models. By incorporating pre-training and denoising autoencoding techniques, BART is able to generate high-quality responses that are more coherent and contextually relevant than previous models. As a result, BART is well-suited for a wide range of applications that require advanced language processing capabilities.
While ChatGPT and BART are both based on transformer architecture and have similar capabilities for generating human-like responses to text prompts, there are some key differences in the way they were trained and the types of tasks they were designed to perform. Ultimately, the choice between these models will depend on the specific needs of the application and the level of control that users require over the generated responses.
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