What is DALL-E 2? An Overview of AI Text-to-Image Generators

What is Dall-E 2?

Last updated - November 10, 2023

Over the past few years, AI has been on the rise, and tech leaders have been finding ways to integrate AI into various business and industrial sectors. One such successful integration of AI has been in the field of intuitive image generation. Open AI, a popular artificial intelligence company developed and launched what is known as text-to-image generators by the name DALL-E 2 sometime back, and recently the company released a newer version of the AI image generation and christened it DALL-E 2.

We are here to explain everything there is to know about DALL-E 2 in this blog. As a matter of fact, this blog will serve as a guide to DALL-E 2, so before you could proceed with it I urge you to bookmark the blog for later use. 

What is DALL-E 2?

What is Dall-E?

With the use of text-to-graphics prompts, users can generate new images using the DALL-E 2 generative AI technology. Functionally, DALL-E 2 is a neural network that can create completely original graphics in a variety of various styles in response to user instructions.

The name DALL-E 2 pays reference to the two distinct key ideas of the technology and alludes to the intention of fusing art and artificial intelligence. While the second portion (E) is connected to the made-up Disney robot Wall-E, the first part (DALL) is meant to invoke the memory of renowned Spanish surrealist Salvador Dali. 

The combination of the two titles conveys the technology’s ability to illustrate ideas in an abstract and occasionally surreal manner and is mechanized by a machine.

DALL-E 2 was created by AI service provider OpenAI and debuted in January 2021. The system uses deep learning models in conjunction with the GPT-3 large language model as a base to comprehend user requests in natural language and produce fresh visuals.

DALL-E 2 is an improvement on Image GPT, an idea that OpenAI first mentioned in June 2020 and which was an initial attempt to show how a neural network may be used to produce fresh high-quality photos. With the help of DALL-E 2, OpenAI was able to expand the original idea of Image GPT and provide users the ability to create new images in reaction to text prompts, much like GPT-3 can create new text in response to text prompts in natural language.

The DALL-E 2 technology competes with other related technologies like Stable Diffusion and Midjourney and is under the umbrella of an AI subfield frequently referred to as generative design.

Technological Architecture of DALL-E 2

It is said that DALL-E 2 uses the multimodal modeling approach to generate images from text inputs. So, let us take a closer look at the technology behind DALL-E 2.

Multimodal Modeling

Multimodal models are ones that can handle a variety of different datatypes. This could apply to input, output, or both. DALL-E is a well-known example of text-to-image generation in which we input a text description and seek to produce an image that corresponds to the description.

How to build a bridge across the various data-use modes is a significant challenge in the context of multimodal modeling. With regard to DALL-E, this would entail connecting the text representation to an image representation that comprehends the meaning of the words, perhaps through word embeddings, and then transforms these meaningful word embeddings into objects in images conveying the same meaning.

Multimodal Modeling
final architecture for image generation

As seen in the above illustrations, the final architecture for image generation and the whole set of models used to train DALL-E 2 are both visible.

How does DALL-E 2 Work?

Natural language processing (NLP), large language models (LLMs), and diffusion processing are some of the technologies that Dall-E employs.

A portion of the GPT-3 LLM was used in the construction of DALL-E 2. In an approach that was created to be optimized for image production, DALL-E 2 uses only 12 billion parameters as opposed to the entire 175 billion parameters that GPT-3 offers. DALL-E 2 uses a transformer neural network, commonly known as a transformer, to help the model to build and comprehend connections between several concepts, much like the GPT-3 LLM.

Technically speaking, the method that makes DALL-E 2 possible was first described by Open AI researchers as Zero-Shot Text-to-Image Generation and discussed in a 20-page research paper published in February 2021. Zero-Shot is an AI strategy where a model can carry out a task, such as creating a completely new image, by drawing on previous knowledge and associated concepts.

Open AI also developed the CLIP (Contrastive Language-Image Pre-training) model, which was trained on 400 million labeled images, to support the claim that the Dall-E model was capable of accurately generating images. By determining which caption is most suited for a created image, CLIP was utilized by OpenAI to assess DALL-E 2’s output.

A method known as a Discreet Variational Auto-Encoder (dVAE), which was partly based on research done by Alphabet’s DeepMind division with the Vector Quantized Variational AutoEncoder, was used in the initial iteration of Dall-E (Dall-E 1) to produce images from text.

In order to produce more sophisticated and photorealistic images, DALL-E 2 expanded upon the techniques employed for its predecessor. In order to produce a higher-quality image, DALL-E 2 uses a diffusion model that incorporates data from the CLIP model.

Use Cases of DALL-E 2

Use cases

DALL-E 2 may be used in a variety of ways to assist people and organizations because it is a generative AI technology, including the following:

Creative Designs

A person who is creative can be encouraged to come up with something new using technology. As an addition to an already-existing creative process, it is also an option.

Entertainment Industry

Dall-E’s artwork might be incorporated into books or video games. Because the prompt system is simpler to utilize to produce images, DALL-E 2 can go beyond what is possible with conventional computer-generated imagery (CGI).

Product Designs

This incredible tool allows product designers to quickly visualize new ideas using text alone, as opposed to the more time-consuming usage of typical computer-aided design (CAD) tools.

Benefits of DALL-E 2

Benefits of Dall-E

Increased Speed

DALL-E 2 can generate an image from a brief text prompt in a matter of seconds, frequently less than a minute.

Full-fledged Customization

A user can produce a very personalized image of almost anything they can think of based on a text prompt.

More Accessibility

DALL-E 2 is comparatively easy to use for users because it only needs natural language text and doesn’t need any special programming knowledge or considerable training.


It can assist someone in expanding on an existing image by remixing it or letting them to re-imagine it in a different way.

Limitations of DALL-E 2


Copyright Issues

It is still unclear whether DALL-E 2 was trained on copyrighted photographs and how much copyright there is on the graphics it made.

Data Set

Even if DALL-E 2 was trained on a sizable amount of data, there is still a tremendous amount more data accessible for photos and descriptions. As a result, because the model is missing the necessary data, a user prompt may not produce the desired image.

Realism of Images

Even though the generated photos’ image quality has significantly increased thanks to DALL-E 2, some photographs may still have a quality that doesn’t make them appear realistic enough to some people.


The user must have a clearly defined prompt in order to receive the correct image. The image produced by DALL-E 2 could be incorrect if the request is very general and devoid of any context.

The Difference Between DALL E and DALL-E 2

Difference between the both

Users are given a number of improved capabilities by the DALL-E 2 engine, which is an advancement of the original Dall-E engine.

DALL-E or DALL-E 1 and DALL-E 2 were released in January 2021 and April 2022, respectively. Images were produced by a dVAE with the original Dall-E by OpenAI. An image-generating diffusion model is used by DALL-E 2. According to OpenAI, photographs produced with DALL-E 2 may have a resolution that is four times higher. A further advantage of DALL-E 2 over its predecessor is an increase in speed and image size capability, which enables customers to produce larger photos more quickly.

With the DALL-E 2 model, the range of styles available for picture customization was also greatly increased. An image may be drawn as pixel art or as an oil painting, for instance, according to a stimulus. The idea of outpainting was also introduced in DALL-E 2 and enables users to produce an image as an extension (or outpainting) of an original image.

How Much Does it Cost to Use DALL-E 2?

The business has developed a credit system to help measure usage for individuals that use DALL-E 2 directly on the OpenAI website. Early users of DALL-E 2 who signed up before April 6, 2023, currently receive free credits. These no-cost credits are renewed monthly and run out one month after being given out. Each time a request is made to generate or alter an image using DALL-E 2, credit is used. Credits may be purchased by new users. In April 2023, the price of 115 credits is $15. A year after purchase, purchased credits expire.

OpenAI charges developers who use the API on a cost-per-image basis. The price is dependent on the size of the photograph. A 256×256 image cost $0.016, a 512×512 image cost $0.018 and a 1024 x 1024 image cost $0.020 in April 2023.


DALL-E 2 probably won’t provide you with the outcomes you desire right away. Writing new prompts for particular elements in the images may be necessary to edit them. Having said that, this is a fantastic tool that may help you optimize your website as well as your entire organization.

Further Reading


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