ChatGPT Vs. Perplexity: AI Language Warriors

ChatGPT Vs. Perplexity: AI Language Warriors

Artificial Intelligence has come a long way in recent years, and the emerging natural language processing models today are ChatGPT and Perplexity AI. Like ChatGPT, the OpenAI’s GPT model powers Perplexity and a Search engine interface.

A comparison of ChatGPT and Perplexity shows that they are similar in utilizing the concept of Perplexity to evaluate their language models and using the same model of the GPT family. However, they differ in cost, training data, use cases and the platforms they support.

Continue reading to learn in detail about the similarities and differences between ChatGPT and Perplexity AI.

What Is ChatGPT And How Does It Work?

ChatGPT is an AI chatbot that OpenAI’s GPT language model powers. You can easily access ChatGPT by signing up using your Google or Microsoft Account. ChatGPT is an AI chatbot that OpenAI’s GPT language model powers.

ChatGPT works on the fundamental model of GPT-3.5, NLP( Natural Language Processing) and RLHF( Reinforcement Learning from Human Feedback).

Furthermore, some of its unique features include the following:

  • ChatGPT can write, edit and debug codes in different programming languages.
  • It can translate more than 95 natural languages.
  • ChatGPT can summarize your favorite stories, movies and websites.
  • It can perform complex mathematical calculations.
  • Writing Professional looking Emails, Blogs, and Cover letters

Moreover, did you know the GPT-4 model was launched on March 14, 2023? The new GPT-4 model extends the capabilities of the previous version and has some more exciting features. We can get a glimpse of the potential of the GPT-4 model if we upgrade to ChatGPT Plus.

Read on to learn more about how the ChatGPT model works and the surprising benefits of ChatGPT.

What Is Perplexity AI And How Does It Work?

Perplexity AI is a search engine powered by an AI chatbot interface. The Company is based in San Franciso and was created in August 2022.

Introduction to Perplexity AI
Perplexity AI is a search engine powered by an AI chatbot interface.

Furthermore, it answers the queries using the same model as ChatGPT(GPT-3.5 model), NLP and ML(Machine Learning). Perplexity AI is ChatGPT with the Internet because it uses the same model as ChatGPT and has access to the Internet.

Moreover, it holds some unique and amazing features.

  • It provides citations to the results of the queries making it a reliable source.
  • Users do not need to create an account to access it, making it a secure and private platform.
  • It supports the Chrome extension and is also recently available on iPhones.
  • Perplexity uses Bird SQL, a Twitter interface that helps you search for tweets mentioning a specific keyword.
  • It can also help you summarize texts, which can be concise or detailed to meet your requirements.

While ChatGPT is only available on Web/Saas platform, Perplexity AI is now available on iPhones.

ChatGPT Vs. Perplexity: Similarities

ChatGPT and Perplexity AI are language models that process and understand natural language. They train on vast amounts of textual data to develop the ability to generate coherent responses to various prompts and questions.

Furthermore, both models rely on deep learning techniques like neural networks to perform language processing tasks. Therefore, they are similar in interacting with users conversationally.

One of the key similarities between ChatGPT and Perplexity AI is that they both utilize the concept of Perplexity to evaluate the quality of their language models.

Perplexity measures how well a language model can predict the next word in a sentence, given the previous words.

Another similarity is that they use the same model of GPT Created by OpenAI, NLP and ML as their foundation.

You can observe the working of the model in the figure below.

ChatGPT working model
ChatGPT and Perplexity AI work similarly, as shown in the image.

Step 1: Fine-Tuning

A prompt is selected from the dataset, and the labeler demonstrates the desired output behavior. This data is used to fine-tune GPT 3.5 with supervised learning.

Step 2: Data Collection And Training Reward Model

Further, the prompt and several model outputs are sampled. The labeler ranks the output from best to worst, which is used to train the reward model.

Step 3: Optimize Reward Model Using Reinforcement Learning

Hence, the labeler selects a new prompt from the dataset. Fine-tune generates output; the reward model calculates a reward for the output. The reward helps to update the fine-tuning using PPO.

ChatGPT Vs. Perplexity: Major Differences

While ChatGPT and Perplexity AI share some similarities as language models, there are also significant differences in their design, training data, and functionality.

Let’s quickly look at the comparison between ChatGPT and Perplexity AI.

SpecificationsChatGPTPerplexity AIPurposeThe main purpose of ChatGPT is to interact in a conversational way.Perplexity is a search-and-answer engine that delivers concise answers to complex questions.
CostChatGPT plus is available for $20/month.Perplexity AI is free to use for all users.
UsesChatGPT is used for writing codes, making calculations, translate information and more.We can use Perplexity AI to generate text, recognize speech and machine translation.
ModelChatGPT is powered by OpenAI GPT-3 family.Perplexity is also powerd by GPT model but it includes the search engine interface.
PlatformsThe only platform that supports ChatGPT is Saas/Web.Perplexity AI supports Web/Saas platform and also available in iPhones.

Furthermore, let’s look at the differences between ChatGPT and Perplexity AI in detail.

1. Real-Time Content

One of the most significant drawbacks of ChatGPT is that it can not provide real-time content. If we ask ChatGPT about today’s weather or events after its training data, it won’t provide any information.

Furthermore, we asked ChatGPT about the World Cup 2022, and it responded as follows;

ChatGPT cannot generate real-time contents
ChatGPT cannot provide real-time data.

However, Perplexity AI provides real-time information and all the content ChatGPT can offer.

Here is the response of Perplexity AI about the same query of World Cup 2022.

Generates real-time content
Perplexity AI can generate real-time content.

ChatGPT cannot keep up with current events because of its limited training data.

Hence, one of the significant differences between ChatGPT and Perplexity AI is the content they can generate.

2. Voice Command

In the iPhone version of Perplexity AI, we can ask our queries with its voice command feature.

We can quickly ask questions using this feature, an essential feature in a mobile device.

Voice command feature of Perplxexity
Perplexity AI can provide a voice command features. (Source: Perplexity)

However, there is no feature like voice command in the Web/SaaS version of the ChatGPT.

It can only respond to your queries through text input.

Voice command feature
ChatGPT doesn’t provide voice command feature.

The voice command feature sets Perplexity AI different from the ChatGPT.

3. Price Differences

You can use ChatGPT and Perplexity AI’s free version without any cost.

However, the ChatGPT Plus version has additional features and costs $20 monthly.

ChatGPT plus subscription plan
ChatGPT Plus costs 20$ per month.

Meanwhile, there is no such premium version of Perplexity AI, which costs any subscription.

You can use all the features in the Web and mobile versions of Perplexity cost-free.

4. Training Data

ChatGPT is trained on a massive amount of 570GB of data, including books, articles and scientific papers. This enormous corpus of data allows ChatGPT to generate responses that sound natural and human-like.

Conversely, Perplexity evaluates other language models’ quality by measuring how well they can predict the next word. While it is also a language model that uses deep learning techniques, it is lighter and more efficient than ChatGPT.

Furthermore, ChatGPT is a more complex model than Perplexity AI, primarily because it has a more significant number of parameters. ChatGPT has 175 million parameters, a significantly more significant number than the parameters in Perplexity AI.

5. Intended Use Cases

ChatGPT was designed primarily for generating human-like text in response to prompts. Furthermore, it was trained on a massive amount of text data to learn the patterns and structures of human language. Making it well-suited for chatbots and other conversational AI applications.

However, Perplexity AI aims to improve the efficiency and accuracy of natural language processing techniques. Furthermore, it includes language modeling, machine translation, text classification, and sentiment analysis. ChatGPT is an excellent choice for chatbots, virtual assistants, and other conversational AI applications.

On the other hand, Perplexity is a valuable asset for organizations that rely on natural language processing for their operations.

Continue reading to learn some of the best uses of ChatGPT.

6. Platforms Supported

ChatGPT only supports a platform that is Web/SaaS (Software as a Service). It is not available on any mobile devices or other platforms. Meanwhile, Perplexity AI is readily available on all Web browsers.

Platforms supporting in ChatGPT and Perplexity AI
Platforms supporting in ChatGPT and Perplexity AI

We can also download the iPhone version of the Perplexity AI. Moreover, you cannot download the ChatGPT on your desktop or phone.

The Bottom Line

ChatGPT and Perplexity AI are similar in different aspects, like sharing the same model of GPT and utilizing the concept of Perplexity. However, they differ in prices, training data, features like voice commands, and the platforms they support. Hopefully, this article helps you give a glimpse of a comparison between ChatGPT and Perplexity AI.

Continue reading to learn the differences and similarities between ChatGPT and Davinci.

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