Know about ChatGPT, its uses and limitations

What is ChatGPT?

ChatGPT is an abbreviation of Generative Pre-trained Transformer.

ChatGPT is an artificial-intelligence (AI) chatbot developed by OpenAI and launched in November 2022. It is built on top of OpenAI's GPT-3.5 and GPT-4 families of large language models (LLMs) and has been fine-tuned (an approach to transfer learning) using both supervised and reinforcement learning techniques.

ChatGPT was launched as a prototype on November 30, 2022. It garnered attention for its detailed responses and articulate answers across many domains of knowledge.[3] Its uneven factual accuracy, however, has been identified as a significant drawback.[4] Following the release of ChatGPT, OpenAI's valuation was estimated at US$29 billion in 2023.[5]

The original release of ChatGPT was based on GPT-3.5. A version based on GPT-4, the newest OpenAI model, was released on March 14, 2023, and is available for paid subscribers on a limited basis.

What are the uses of ChatGPT?

Although the core function of a chatbot is to mimic a human conversationalist, ChatGPT is versatile. For example, it can write and debug computer programs; compose music, teleplays, fairy tales, and student essays; answer test questions (sometimes, depending on the test, at a level above the average human test-taker);write poetry and song lyrics; emulate a Linux system; simulate an entire chat room; play games like tic-tac-toe; and simulate an ATM.

ChatGPT's training data includes man pages and information about internet phenomena and programming languages, such as bulletin board systems and the Python programming language.

What are the limitations of ChatGPT?

ChatGPT has multiple limitations. OpenAI acknowledges that ChatGPT "sometimes writes plausible-sounding but incorrect or nonsensical answers"This behavior is common to large language models and is called "hallucination". The reward model of ChatGPT, designed around human oversight, can be over-optimized and thus hinder performance, in an example of an optimization pathology known as Goodhart's law.

ChatGPT has limited knowledge of events that occurred after September 2021.

Source:https://en.wikipedia.org/wiki/ChatGPT

GPT-4:

Generative Pre-trained Transformer 4 (GPT-4) is a multimodal large language model created by OpenAI and the fourth in its GPT series. It was released on March 14, 2023, and has been made publicly available in a limited form via ChatGPT Plus, with access to its commercial API being provided via a waitlist. As a transformer, GPT-4 was pretrained to predict the next token (using both public data and "data licensed from third-party providers"), and was then fine-tuned with reinforcement learning from human and AI feedback for human alignment and policy compliance.

Compared with its November 2022 predecessor, ChatGPT, observers reported GPT-4 to be an impressive improvement on ChatGPT, with the caveat that GPT-4 retains some of the same problems. Unlike ChatGPT, GPT-4 can take images as well as text as input. OpenAI has declined to reveal technical information such as the size of the GPT-4 model.

Source: https://en.wikipedia.org/wiki/GPT-4

How do I access GPT-4?

1. To get to ChatGPT-4, you will need the paid version of the site, ChatGPT+. Here's how you can get a subscription:

2. Open up the ChatGPT site, at https://chat.openai.com/

3. If you already have access to ChatGPT+, then the site will take you directly to ChatGPT4.

4. If you don't have the premium version, you'll have to upgrade from the sidebar, by selecting the 'Upgrade to Plus' option.

5. The upgrade option will show you a comparison between the free and premium versions

6. Once you've paid the piper, you'll get full access to the latest version of the chatbot.

7. When starting a new chat, a pulldown will give you the option to use one of the old models or GPT-4. Do note that ChatGPT-4 is slower than the other models, but is far more complex in interactions, with OpenAI terming their new release the most human yet.

No free AI for you

There is currently no way to access the latest iteration for free, unless you're a Bing user. Microsoft - which recently invested billions in ChatGPT parent OpenAI - has announced that their chatbot is being powered by the latest version of the AI.

Source:https://economictimes.indiatimes.com/news/how-to/want-to-use-chatgpt-4-heres-how-you-can-get-access-to-openais-latest-offering/articleshow/98688790.cms?from=mdr

Signal vs. WhatsApp How Are They Different and Which Is Right For You?

 

What is Signal?

If you’re not familiar with Signal, it is a free instant messaging app with a heavy focus on privacy. It is a product of the Signal Foundation, a 501(c)3 non-profit organization. The app is built on open-source software (meaning anyone can scrutinize the source code and test it for security purposes), and is entirely funded by grants and donations.

There are no ads, affiliate links, or any kind of tracking when you use the app. It is also not tied to, even indirectly, any major tech company. As such, concerns about data sharing are much less of an issue.

Signal is available on Android, iOS, Windows, and macOS. It’s one of the best encrypted messaging apps in the world right now.

What is WhatsApp?

WhatsApp is the world’s most popular messaging app, used by billions of people. It encrypts communication on both ends, but since it is owned by Facebook, there are quite a few privacy concerns.

WhatsApp doesn’t show any ads, and just like Signal, you don’t need to pay anything to use WhatsApp. WhatsApp also offers added features for business accounts.

Signal vs. WhatsApp – Which has the bigger user base?

Signal has more than 40 million monthly users, according to its website. Signal is most popular with privacy-focused people, including journalists, activists, governments, cybersecurity experts, and high profile tech leaders like Twitter CEO Jack Dempsey and Tesla’s Elon Musk.

How WhatsApp stacks up: With more than 2 billion monthly users, WhatsApp has a much bigger user base. It is far more likely that the people you want to chat with are already using WhatsApp. This makes it easier to adopt WhatsApp and instantly start messaging your friends and family (rather than convincing them to add another app to their life).

Signal vs. WhatsApp – Which has more features?

Signal lets you send text or voice messages, photos, files, contacts, locations, and make voice and video calls to other Signal users, all using Wi-Fi or cellular data. You can add stickers and GIFs to chats, too.

You can also customize Signal’s appearance with a variety of themes, chat colors, and wallpaper, and add a status to your description that is visible to anyone chatting with you.

How WhatsApp stacks up: WhatsApp has long provided all these options, so both are on an even keel.

Source:https://vpnoverview.com/privacy/apps/signal-vs-whatsapp/

Is Signal safer than WhatsApp?

WhatsApp and Signal both use the same encryption protocol developed by Open Whisper Systems. This protocol is open-source and peer-reviewed, making it trustworthy. While they use the same encryption, Signal has a number of security advantages over WhatsApp:

Metadata protection

When you send out a message or a photo, you are also sending out metadata. Metadata includes information about who the message is sent to, when the message was delivered, and more. While the content of messages is protected by end-to-end encryption, this metadata—information about the message—is not. If encryption is a lockbox, metadata is the postage label taped on top of it. Even without opening the box, you can already learn a lot by reading the label.

WhatsApp does not protect metadata. This means third parties may see information about the messages. In contrast, Signal developed a technology for protecting metadata called Sealed Sender. This technology hides information about the sender and the recipient, so even the postage label is unreadable.

Data sharing

In addition to the messages and the metadata, messaging services can also collect information stored on your phone. This information includes your phone number, contacts, avatar, location, media, and device details. There is a major difference between how WhatsApp and Signal treat this information.

WhatsApp stores encrypted media and forwarded messages on its own servers. It also collects information on your usage habits such as how often you use the app and how much time you spend chatting with each contact. According to its privacy policy, third-party service providers can access this information. Signal, on the other hand, only requires a phone number. They will not attempt to link the phone number to an identity.

Company ownership

Another important factor to consider is which company owns the messaging service. Meta (formerly Facebook) owns WhatsApp. If WhatsApp’s privacy policy is any indication, they will integrate the app with other services owned by Meta. This involves sharing of information in order to help them customize and market their services.

On the other hand, Signal is owned by the Signal Technology Foundation. It is a registered non-profit organization that is run on user donations. One of the founders, Moxie Marlinspike, was Twitter’s head of cybersecurity. He developed Signal’s end-to-end encryption protocol, which was later adopted into popular messaging apps such as WhatsApp, Skype, and Facebook Messenger.

Which messaging app is most secure?

Between WhatsApp and Signal, Signal wins hands-down as the more secure messaging service. While both use end-to-end message encryption, Signal provides more metadata privacy and doesn’t share your data with third parties. Since Signal is privately owned and non-profit, it will likely remain the more secure option in the near future.

That said, we aren’t necessarily recommending that you stop using WhatsApp. Admittedly, its end-to-end encryption is still a highly respected standard of privacy protection.

Source: https://www.expressvpn.com/blog/whatsapp-vs-signal/