Generative AI

Computers can now make new things.

They can make art or stories. They can even make music or videos.

These tools learn from things people made. They look for patterns in the data. Then, they use those patterns to make new things.

You can tell the computer what to do. You use words to give it ideas.

Some tools can make pictures from words. Other tools can write text. Many people use them every day.

It is amazing to see what they do.

Generative AI is a type of computer science. It helps machines make new things. These things can be text, images, or even music.

These tools work by learning from data. Data is a large set of information. The AI looks for patterns in that data. Then, it uses those patterns to make something new. You can give the AI a prompt. A prompt is a set of words that tells the AI what to do.

One way to make AI is using GANs. This stands for generative adversarial networks. These use two parts that work like a game. One part makes a fake image. The other part tries to spot the fake. They practice together to get better.

Many people use these tools today. Some use them to write code or art. Others use them for medicine or finance. But there are also big concerns. Some people use AI to make fake news. Large AI systems also use a lot of power. They need much electricity and fresh water to stay cool.

Generative AI is a special kind of computer science. It helps machines create entirely new things. These things can be written text, beautiful images, or even videos.

This technology is useful in many different jobs. Doctors use it to find new medicines. People in finance use it to draft reports. Artists and writers also use it to find new ideas. It is a tool that changes how we work.

How does this technology work? It starts with a process called training. The AI looks at a huge amount of data. It learns the patterns and structures within that data.

Once it learns these patterns, it can make new things. You can give the AI a prompt. A prompt is a set of words or instructions. The AI uses your prompt to decide what to create. It follows the patterns it learned to make a response.

This field has a very long history. In 1906, a mathematician named Andrey Markov studied patterns in text. He used something called a Markov chain. By the 1970s, artists used computers to make art. Harold Cohen made a program called AARON to paint. In the 1980s and 1990s, people used AI for planning. These systems helped with military plans and spacecraft. They were already quite mature by the early 1990s.

New tools arrived very quickly in recent years. In 2021, a model called DALL-E became famous. It could turn text into images. In 2022, Midjourney and Stable Diffusion were also released. Then, ChatGPT came out in November 2022. This made AI very popular for writing tasks. In 2024, a survey showed many people use it. In China, 83% of people used it in 2023. This was much higher than the global average of 54%.

We can see how AI links to our daily lives. Some AI models are small enough for a phone. An iPhone 11 can run a version of Stable Diffusion. Larger models need huge data centers to work. These centers use a lot of electricity and fresh water. People also worry about things like fake news. There are even tools to help spot AI-made content. It is a fast-changing part of our world.

Generative artificial intelligence, often called generative AI or GenAI, is a specialized subfield of artificial intelligence. It uses generative models to create entirely new forms of data. These outputs can include text, images, videos, audio, and even software code.

Unlike older systems that simply categorize existing information, generative AI learns the underlying patterns and structures of its training data. It then uses those learned patterns to produce new content in response to user inputs. These inputs are frequently provided as natural language prompts, which are simple instructions written in everyday speech.

The mechanism of generative AI relies on complex mathematical models. One significant method is the Generative Adversarial Network, or GAN. A GAN consists of two neural networks: a generator and a discriminator, which are trained at the same time in a competitive setting.

The generator creates synthetic data by turning random noise into samples that look like the real training data. Meanwhile, the discriminator tries to distinguish between authentic data and the synthetic data produced by the generator. This creates a minimax game where the generator tries to "fool" the discriminator. As they compete, the generator becomes much better at creating highly realistic outputs.

Another important method is the variational autoencoder, or VAE.

While GANs use competition, VAEs offer a different way to model complex data like images. The field has also seen massive progress through the transformer architecture. This specific architecture, introduced in 2017, allowed for much greater advances than earlier systems like long short-term memory (LSTM) networks. This breakthrough led directly to the development of generative pre-trained transformer (GPT) models, starting with GPT-1 in 2018. These models use large-scale data centers and massive amounts of computing power to function.

The history of this technology stretches back much further than the recent AI boom. In 1906, Russian mathematician Andrey Markov introduced the Markov chain. He used this concept to model natural language by analyzing patterns in vowels and consonants.

By the 1970s, artists like Harold Cohen began using computers for art. Cohen developed AARON, a program designed to create paintings autonomously. During the 1980s and 1990s, researchers used generative planning for complex tasks. These systems helped create military crisis plans and decision plans for autonomous spacecraft. They were considered a relatively mature technology by the early 1990s.

Recent years have seen an explosion in the adoption and variety of these tools. In 2021, OpenAI's DALL-E brought text-to-image generation to the mainstream. This was followed by the release of Midjourney and Stable Diffusion in 2022. In November 2022, the public release of ChatGPT popularized AI for general text tasks. Adoption rates vary significantly by region. A 2024 Ipsos survey found that 68% of Asia-Pacific respondents believed AI had a positive impact, compared to 57% globally. In 2023, 83% of Chinese respondents reported using the technology. This exceeded the global average of 54% and the U.S. rate of 65%.

Generative AI is applied across many diverse industries today. In healthcare, models assist with drug discovery and creating synthetic medical data. Finance professionals use it for drafting reports and automating customer service. The media and entertainment sectors use it for music composition and script development. Even robotics can benefit, as generative models help with motion planning and robot control. Some models are even small enough to run on personal devices. For example, a version of Stable Diffusion can run on an iPhone 11. However, the largest models, such as GPT-4, require massive arrays of GPUs in data centers.

Despite these benefits, the technology brings significant challenges and concerns. Some models are trained on copyrighted works without permission from the original creators. There are also risks regarding the use of AI for cybercrime, fake news, and deepfakes. The environmental impact is another major concern. Large-scale data centers require high energy consumption and fresh water for cooling. Additionally, the rapid rise of AI has led to a "trough of disillusionment." By mid-2025, some companies began abandoning pilot projects due to issues with data quality and integration.