ChatGPT is a chatbot released by OpenAI in November 2022 and it became very popular soon after its release. It is an open-source network which means anyone can access it for free and use it according to their requirement.
A paid version with premium features is also available for the users.
What is ChatGPT-3.5
ChatGPT-3.5 is a natural language model that interacts conversationally. It is a sibling model to InstructGPT, which is trained to follow instructions in a prompt and provide a detailed response.
ChatGPT-3.5 is fine-tuned from a model in the GPT series, which finished training in early 2022. ChatGPT-3.5 can answer follow-up questions, admit its mistakes, challenge incorrect premises, and reject inappropriate requests.
It is also capable of generating imaginative and innovative content such as poems, stories, code, essays, songs, celebrity parodies, and images using its own words and knowledge. ChatGPT-3.5 is fully available as part of ChatGPT, on the OpenAI website.
You can chat with ChatGPT-3.5 as much as you like, assuming the servers aren’t too busy. ChatGPT-3.5 is one of the most advanced and powerful natural language models in the world.
What is GPT-4
GPT-4 stands for Generative Pre-trained Transformer 4, which is a type of neural network architecture that uses attention mechanisms to learn from large amounts of data.
GPT-4 is a continuation of the research path from GPT, GPT-2, and GPT-3, which were previous versions of the same model with different sizes and capabilities.
GPT-4 is trained on a massive corpus of text and images from the internet, using more data and more computation than ever before.
It has 100 trillion parameters, which is 10 times more than GPT-3.5, the previous state-of-the-art model.
How Does It Work?
GPT-4 is based on the principle of self-attention, which means it can learn the relationships between different parts of the input and output sequences.
For example, if the input is a sentence, GPT-4 can learn which words are related to each other based on their context and position. If the input is an image, GPT-4 can learn which pixels are related to each other based on their color and shape.
GPT-4 can also learn from multiple modalities, such as text and images, by combining them into a single representation. GPT-4 is a generative model, which means it can produce new content that is coherent and relevant to the input.
For example, if the input is a prompt for a song lyric, GPT-4 can generate a complete song that matches the style and theme of the prompt. If the input is a question, GPT-4 can generate an answer that is factual and informative.
GPT-4 can also generate multiple outputs for the same input, allowing users to choose the best one or iterate further.GPT-4 is a pre-trained model, which means it has already learned from a large amount of data before being used for specific tasks.
This allows GPT-4 to have a general understanding of language, images, common sense, and world knowledge. However, GPT-4 can also be fine-tuned for specific domains or applications, by training it on additional data that is relevant to the task.
For example, GPT-4 can be fine-tuned for legal or medical domains, by training it on legal or medical documents.
Capabilities of GPT-4
GPT-4 is a powerful and versatile system that can perform various tasks across different domains and modalities. Some of the capabilities of GPT-4 include
Creativity
GPT-4 can generate original and diverse content for various creative purposes, such as writing poems, stories, jokes, slogans, headlines, etc. It can also generate content that matches a user’s preferences or style, such as writing in a specific genre or tone.
Problem-Solving
GPT-4 can solve complex problems that require logic, reasoning, calculation, or inference. It can also explain its solutions or provide steps for solving them. For example, GPT-4 can solve math problems, puzzles, riddles, etc.
Communication
GPT-4 can communicate with users in natural language, using text or speech. It can understand user’s intents and emotions, and respond appropriately. It can also engage in conversations on various topics or domains.
Learning
GPT-4 can learn from user feedback or new data sources to improve its performance or adapt to new tasks. It can also teach users new skills or knowledge by providing instructions or examples.
Limitations of GPT-4
ChatGPT-4 also has some limitations that can cause problems for the user. Some of the limitations of GPT-4 include:
Factuality
GPT-4 may not always produce factual or accurate outputs, especially when dealing with rare or novel topics or queries. It may also confuse or mix up facts from different sources or contexts.
For example, GPT-4 may generate incorrect or outdated information, or contradict itself in different outputs.
Safety
GPT-4 may not always produce safe or ethical outputs, especially when dealing with sensitive or controversial topics or requests. It may also generate outputs that are harmful, offensive, or inappropriate for the user or the situation.
For example, GPT-4 may generate content that is violent, abusive, hateful, discriminatory, illegal, etc.
Alignment
GPT-4 may not always produce outputs that are aligned with the user’s goals or values, especially when dealing with ambiguous or complex inputs or tasks. It may also generate outputs that are misleading, irrelevant, or unsatisfactory for the user or the task.
For example, GPT-4 may generate content that is biased, incomplete, vague, boring, etc.
How to Access ChatGPT-4
GPT-4 is the latest and most advanced artificial intelligence model from OpenAI that can generate text and images based on user inputs. You can try out GPT-4 on two platforms: ChatGPT Plus and the API.
ChatGPT Plus is a user-friendly website that lets you chat with GPT-4 using text inputs and outputs. You can select different modes and settings to adjust the tone, style, and content of GPT-4’s responses.
You can also give feedback to GPT-4 to help it improve its performance or learn new skills. ChatGPT Plus is free and open to anyone who registers with an email address.
The API is a technical interface that allows developers to connect GPT-4 to their applications or services using text and image inputs and outputs. Developers can access the API by joining the waitlist and getting an API key.
The API is currently in beta and has a limited number of seats and usage limits. The API is also subject to pricing and terms of service. To use GPT-4 on either platform, you need to do the following: Sign up for ChatGPT Plus or join the API waitlist on the OpenAI website.
Log in to ChatGPT Plus or get an API key from the OpenAI dashboard. Pick a mode and settings for ChatGPT Plus or set up the API parameters for your application. Send input to GPT-4 in text or image format. Get output from GPT-4 in text format.
Difference Between ChatGPT-3.5 and ChatGPT-4
Although ChatGPT-3.5 and ChatGPT-4 are released by the same company and are two versions of the same thing, they also have many differences that are given below
Free and Paid Versions
ChatGPT-3.5 is an open-source AI technology that does not require users to subscribe to the subscription plan to use the features of the Chatbot. You can simply sign in to the ChatGPT website or on the app and use it for free.
On the other hand, ChatGPT-4 is not free to use and available to everyone. Only some specific people can have access to the features of ChatGPT-4. You can have access to ChatGPT-4 if you have a ChatGPT Plus subscription.
Number of Input Words
ChatGPT-3.5 was the first public version of ChatGPT and it can handle only 3000 words per command which was a negative point about it. Users were only able to generate a limited amount of text using this version.
ChatGPT-4 on the other hand can hand over 25000 words per input which makes it more useful and powerful to generate, examine, and verify longer text. This quality of ChatGPT-4 makes it superior to previous versions.
Multimodal Model
Another major difference between ChatGPT 3.5 and ChatGPT 4 is that ChatGPT 4 is a multimodal model, which means it can process both text and image data. For instance, it can accept an image as part of a prompt and provide an appropriate textual response.
As you can see, ChatGPT 4 can generate more creative and descriptive responses based on visual input. However, ChatGPT Plus, the paid version of ChatGPT that gives access to GPT-4, will only answer with text.
So, if you ask it for pictures like the Mona Lisa, you’ll be told about similar works, but you won’t see any images.
Memory
ChatGPT-3.5 has a short-term memory of about 8,000 words, meaning that it cannot remember or refer to previous parts of the conversation beyond that limit.
ChatGPT-4 has a longer memory of about 64,000 words, meaning that it can remember and refer to previous parts of the conversation more effectively.
Accuracy of Factual Knowledge
ChatGPT 3.5 – Makes noticeably fewer factual errors than version 3, but still slips up occasionally. It may state incorrect statistics or make logical contradictions within a conversation.
ChatGPT 4 – Expected to have near-perfect factual accuracy for many topics through better training approaches. Will recall precise figures, events, definitions, and other details reliably.
Sophistication of Language
ChatGPT 3.5 – Displays good linguistic fluency. Able to match human speaking styles. Occasional grammatical mistakes still occur.
ChatGPT 4 – Predicted to have more eloquent language and maintain a consistent personality over long conversations. Grammar and syntax errors should be very rare.
Depth of Reasoning
ChatGPT 3.5 – Can follow logical reasoning over 3-5 conversational turns reliably. Sometimes struggles with complex inference chains.
ChatGPT 4 – Should be able to track implications through long philosophical arguments. More adept at deductive and analogical reasoning.
Common Sense Judgement
ChatGPT 3.5 – Shows decent common sense, avoiding offensive or dangerous responses. Still lapses in some edge cases.
ChatGPT 4 – Expected to have very strong common sense reasoning in line with human ethics. Unlikely to propose unethical, dangerous, or nonsensical actions.
Knowledge Breadth
ChatGPT 3.5 – Displays broad knowledge across subjects, but mastery is limited to basics. Unable to discuss niche topics in-depth.
ChatGPT 4 – Projected to have near expert-level knowledge of many mainstream topics. May start approaching specialist-level on select niche areas.
User Safety
ChatGPT 3.5 – Moderately reliable at refusing unethical instructions, but has known failure modes. Repeated probes can produce some unsafe outputs.
ChatGPT 4 – Predicted to be highly resilient against attempts to generate harmful, biased, or misleading information. Much less prone to unethical output.
Problem-Solving
GPT-4 can solve complex problems that require logic, reasoning, calculation, or inference. It can also explain its solutions or provide steps for solving them. For example, GPT-4 can solve math problems, puzzles, riddles, etc.
ChatGPT-3.5 on the other hand was not able to solve such complex problems.
Number of Parameters
The number of parameters of ChatGPT-3.5 and ChatGPT-4 are also different. ChatGPt-3.5 has 175 billion parameters which are far less than the parameters used in ChatGPT-4. ChatGPT-4 will be released in March 2023 with 1.7 trillion parameters.
Table of Difference
| Feature | ChatGPT-3.5 | ChatGPT-4 |
| Free to Use | It is free to use. | It is not free to use. You can have access to ChatGPT-4 if you have a ChatGPT Plus subscription or through an API wishlist. |
| Access | Anyone can use it simply by signing up on the website or app. | Only a limited amount of people have access to ChatGPT-4 at the present time. |
| Number of Parameters | 175 billion | Around 1.75 trillion |
| Multimodal Models | No, it can only use text input and output | Yes, can process both text and image data |
| Memory | Around 8,000 words | Around 64,000 words |
| Multilingual Capabilities | Limited, only English | Improved, 25 languages other than English |
| Steerability | Low, less control over responses | High, more control over responses using a personality |
| Total Words | ChatGPT-3.5 is able to handle only 3000 words per input. | ChatGPT-4, on the other hand, can hand over 25000 words per input. |
| Problem-Solving | ChatGPT-3.5, on the other hand, was not able to solve such complex problems. | GPT-4 can solve complex problems that require logic, reasoning, calculation, or inference |
| User Safety | It can produce some unsafe outputs. | Predicted to be highly resilient against attempts to generate harmful and unethical information. |
| Accuracy | It may state incorrect statistics or make logical contradictions within a conversation. | Expected to have near-perfect factual accuracy for many topics through better training approaches. |
| Price | You can use it for free without subscribing to ChatGPT Plus. | You can use it for 20$ per month. |
Which One Is Right for You
After reading the above-given differences and features of ChatGPT-3.5 and ChatGPT-4 you can easily decide which one is better for you.
If you want to generate content and get information for your work you can subscribe to the premium version of ChatGPT and use the feature.
As ChatGPT-4 can produce more accurate and elaborated content and skips all the irrelevant data it can be more useful as compared to ChatGPT-3.5. It can be used to examine longer text which is also a plus point.
On the other hand, if you want to use ChatGPT for just fun and normal research ChatGPT-3.5 is good for you. If used properly, it can also produce good results.
ChatGPT 4 does appear promising for anyone wanting to leverage AI conversationally at higher levels of discourse across diverse topics and modalities. But it remains unknown exactly when it will be available.
For now, carefully evaluating ChatGPT 3.5 against your needs is recommended – it may already provide sufficient capabilities while we await future releases. Assess how it performs for your particular domain.
The rapid evolution of conversational AI means models will continue improving. But by understanding the strengths of the latest options, you can make an informed choice about which is the right fit.
Both ChatGPT-3.5 and ChatGPT-4 represent major leaps forward – the one that’s best depends on what you aim to accomplish.
Conclusion
ChatGPT 3.5 and ChatGPT 4 are two of the most advanced and intelligent chatbot platforms available today. They can generate fluent and diverse responses that can engage and satisfy users across various domains and tasks.
However, they also have some differences in terms of features, capabilities, advantages, and disadvantages.
ChatGPT 3.5 is free to use, but it is unimodal, has a short-term memory, is prone to hallucinations, and is not very controllable or customizable.
ChatGPT 4 is only available through a paid subscription service, but it is multimodal, has a longer memory, is more accurate and less prone to hallucinations, and is more controllable and customizable.
Depending on your needs and preferences, you may choose either ChatGPT 3.5 or ChatGPT 4 for your conversational AI projects. However, you should also be aware of their limitations and challenges, and always monitor and evaluate their performance and quality.
We hope this blog has helped you understand the differences between ChatGPT 3.5 and ChatGPT-4 and has given you some insights into their features, capabilities, advantages, disadvantages, and applications.
If you have any questions or feedback about this blog or ChatGPT in general, please feel free to contact us or leave a comment below.