ChatGPT Wikipedia
The release of GPT-5 provides a sizable update to previous models, at least on paper. OpenAI claims that GPT-5 outperforms past models in math, real-world coding, multimodal understanding and health knowledge, and is also less likely to hallucinate or make false claims. “We’ll use language models to help us write first drafts, to brainstorm. “There are things that have existed in the past that these statistically oriented models will then pick up on, but we don’t want to project those associations into the future. ChatGPT can also be accessed as a mobile app on iOS and Android devices. Ravinutala said chatbots like ChatGPT can be used by customer experience companies to automate customer service interactions, allowing companies to better understand user intent and respond accordingly.
In November 2019, WhatsApp released a new privacy feature that let users decide who can add them to groups. On April 5, 2016, WhatsApp and Open Whisper Systems announced that they had finished adding end-to-end encryption to “every form of communication” on WhatsApp, and that users could now verify each other’s keys. They expressed the concern that regular WhatsApp users still could not tell the difference between end-to-end encrypted messages and regular messages. WhatsApp uses a “store and forward” mechanism for exchanging messages between two users. Multimedia messages are sent by uploading the image, audio or video to be sent to an HTTP server and then sending a link to the content along with its Base64 encoded thumbnail, if applicable. WhatsApp automatically compares all the phone numbers from the device’s address book with its central database of WhatsApp users to automatically add contacts to the user’s WhatsApp contact list.
Biased Responses
However, the company did not reveal the names of the end users, which according to research by Citizen Lab include, Saudi Arabia, Bahrain, Kazakhstan, Morocco, Mexico and the United Arab Emirates. According to WhatsApp, the exploit “targeted at least 100 human-rights defenders, journalists and other members of civil society” among a total of 1,400 users in 20 countries. The hack, allegedly developed by Israeli surveillance technology firm NSO Group, injected malware onto WhatsApp users’ phones via a remote-exploit bug in the app’s Voice over IP calling functions. In March 2019, WhatsApp released a guide for users who had installed unofficial modified versions of WhatsApp and warned that it may ban those using unofficial clients. An integer overflow bug allowed a malicious user to take full control of the victim’s application once a video call between two WhatsApp users was established. Previously, users could opt-out of such data sharing, but the new policy removed this option.
A 2025 Sentio University survey of 499 LLM users with self-reported mental health conditions found that 96.2% use ChatGPT, with 48.7% using it specifically for mental health support or therapy-related purposes. In 2025, OpenAI added several features to make ChatGPT more agentic (capable of autonomously performing longer tasks). At launch, OpenAI included more than 3 million GPTs created by GPT Builder users in the GPT Store. The integration used ChatGPT to write prompts for DALL-E guided by conversations with users. GPT-4, which was released on March 14, 2023, was made available via API and for premium ChatGPT users.
Platform support
Andrew Ng argued that “it’s a mistake to fall for the doomsday hype on AI—and that regulators who do will only benefit vested interests.” Yann LeCun dismissed doomsday warnings of AI-powered misinformation and existential threats to the human race. Juergen Schmidhuber said that in 95% of cases, AI research is about making “human lives longer and healthier and easier.” He added that while AI can be used by bad actors, it “can also be used against the bad actors”. The FTC asked OpenAI for comprehensive information about its technology and privacy safeguards, as well as any steps taken to prevent the recurrence of situations in which its chatbot generated false and derogatory content about people. In October 2025, OpenAI banned accounts suspected to be linked to the Chinese government for violating the company’s national security policy. In late March 2023, the Italian data protection authority banned ChatGPT in Italy and opened an investigation.
But for those who want an upgrade over the free version, a paid subscription version, called ChatGPT Plus, is also available for $20 a month. To do so, download the ChatGPT app from the App Store for iPhone and iPad devices, or from Google Play for Android devices. Not only can ChatGPT generate working computer code of its own (in many different languages), but it can also translate code from one language to another, and debug existing code. This is used to not only help the model determine the best output, but it also helps improve the training process, enabling it to answer questions more effectively. In order to sift through terabytes of internet data and transform that into a text response, ChatGPT uses a technique called transformer architecture (hence the “T” in its name). The process happens iteratively, building from words to sentences, to paragraphs, to pages of text.
What does ChatGPT stand for?
In January 2018, WhatsApp released a daman game login standalone business app called WhatsApp Business which can communicate with the standard WhatsApp client. For more information, visit the developer’s accessibility website .
By February 2013, WhatsApp had about 200 million active users and 50 staff members. To cover the cost of sending verification texts to users, WhatsApp was changed from a free service to a paid one. This new facility, to Koum’s surprise, was used by users to ping “each other with jokey custom statuses like, ‘I woke up late’ or ‘I’m on my way.'” Fishman said, “At some point it sort of became instant messaging”.
Finally, let’s talk about how ChatGPT can drive research and data‑analysis workflows, from brainstorming ideas to interpreting datasets. Once you’ve mastered tailoring replies with Custom Instructions, the next level is building your own custom version of ChatGPT, something tuned for a particular workflow, topic, or team. For example, you can ask ChatGPT to avoid overly technical jargon, to always use Australian spelling, or to provide code blocks rather than paragraphs — whatever matches your style. First, to access Custom Instructions, you go to your profile in ChatGPT.
Messenger Duo for WhatsApp
Using voice, images and files makes ChatGPT more flexible and closer to how humans naturally communicate. On the web version, click the paperclip or ‘+’ icon in the chat input, then select an image file (PNG, JPEG, non‑animated GIF up to ~20 MB) or drag and drop it. You can use voice input, image uploads, and file uploads in both mobile and web versions to make your interaction more natural and richer. The multimodal features of ChatGPT allow you to go beyond text. One of ChatGPT’s most powerful features is how you can tailor it to your personal style and needs. To start the process, install the app from your app store, log in, and then open a new chat.
- GPT-4, which was released on March 14, 2023, was made available via API and for premium ChatGPT users.
- Privacy practices may vary based, for example, on the features you use or your age.
- Some time in 2013 WhatsApp acquired Santa Clara–based startup SkyMobius, the developers of Vtok, a video and voice calling app.
- It became the world’s most popular messaging application in 2015, with 900 million users, and had more than 2 billion active users worldwide in February 2020.
In December 2019, WhatsApp confirmed a security flaw that would allow hackers to use a malicious GIF image file to gain access to the recipient’s data. When a user deletes media for everyone, WhatsApp does not delete images saved in the iOS camera roll and so those users are able to keep the images. WhatsApp was criticized by security researchers and the Electronic Frontier Foundation for using backups that are not covered by end-to-end encryption and allow messages to be accessed by third-parties. In November 2020, UPI payments via WhatsApp were initially restricted to 20 million users, and to 100 million users in April 2022, and became generally available to everyone in August 2022. The feature has to be turned on by the user and provides the option to encrypt the backup either with a password or a 64-digit encryption key. On November 14, 2016, WhatsApp added video calling for users using Android, iPhone, and Windows Phone devices.
In April 2022, WhatsApp announced undated plans to roll out a Communities feature allowing several group chats to exist in a shared space, getting unified notifications and opening up smaller discussion groups. In October 2023, support for logging in to multiple (meaning two) accounts was added, allowing users to switch between different WhatsApp accounts in the same app. Now, the feature is also made available to iOS users, allowing them to link up to four iPhones.
Want to learn more about ChatGPT?
At launch, the feature was limited to purchases on Etsy from US users with a payment method linked to their OpenAI account. It was capable of autonomously performing tasks through web browser interactions, including filling forms, placing online orders, scheduling appointments, and other browser-based tasks. In March 2023, ChatGPT Plus users got access to third-party plugins and a browsing mode (with Internet access).
Select a model for your prompt
So far, users can make single-item purchases from domestic sellers on online marketplace Etsy, as well as some merchants on Shopify’s e-commerce platform. Following the addition of agentic e-commerce and easy checkout features, OpenAI partnered with Walmart, the country’s largest retailer to enhance digital shopping experiences. In fact, many users have reported instances of GPT-5 making simple mistakes. Despite these clear advances compared to prior models, GPT-5 is still susceptible to the same problems that plagued its predecessors.
- This paid subscription version of ChatGPT provides faster response times, access during peak times and the ability to test out new features early.
- This led many users to delete WhatsApp and instead use services such as Signal and Telegram.
- There were a series of incidents between 2017 and 2020, after which WhatsApp announced changes for Indian users of the platform that labels forwarded messages as such.
- As before, OpenAI has not disclosed technical details such as the exact number of parameters or the composition of its training dataset.
For example, the new model doubles its context window from 128,000 tokens in GPT-4o to 256,000 tokens in GPT-5. In August 2025, OpenAI released GPT-5, its fastest and smartest model to date, and the current language model for ChatGPT. And several authors and journalists have sued OpenAI for copyright infringement, claiming their work was scraped from the internet and used as training data without their permission. Teachers are concerned that students will use it to cheat, prompting some schools to completely block access to it.
As before, OpenAI has not disclosed technical details such as the exact number of parameters or the composition of its training dataset. GPT-5 was launched on August 7, 2025, and is publicly accessible through ChatGPT, Microsoft Copilot, and via OpenAI’s API. Released in February 2025, GPT-4.5 was described by Altman as a “giant, expensive model”. In September 2024, OpenAI introduced o1-preview and a faster, cheaper model named o1-mini. A study presented example attacks on ChatGPT, including jailbreaks and reverse psychology.
If you want even more control, you can build your own “GPT” — a custom, task-specific version of ChatGPT. Once you save these instructions, they apply to all new conversations, so you don’t have to re-explain things every time. When chatting with ChatGPT, it helps to start fresh for new topics by clicking “New Chat.” This clears the context and reduces confusion from previous topics. Across devices, your chat history is usually saved, so you can return to past conversations anytime.
