7 Frequently Asked Questions About GPT Image (gpt-image-2) | What Beginners Want to Know First [2026 Edition]
機械翻訳 / Machine-translated

機械翻訳 / Machine-translated
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GPT Image (gpt-image-2) is the latest image-generation AI released by OpenAI on April 21, 2026. Simply describe the kind of image you want in words, and the AI will automatically create it for you. It represents a major leap forward from the previous DALL-E series, and with the addition of a Thinking capability, it can produce images that are more precise and better aligned with your intent.
Its biggest feature is the ability to generate multiple images while maintaining character consistency. For example, when creating a manga or illustration series featuring the same character, you can provide a reference image and the face and clothing will remain consistent. It also supports 2K resolution (high quality) and can generate up to eight images at once, allowing you to compare your options and choose the best one.
GPT Image (gpt-image-2) is provided as an API (a mechanism used via programming), and is basically pay-as-you-go. Anyone can use it by creating an official OpenAI account and obtaining an API key. With the previous generation DALL-E 3, the cost was roughly $0.04–$0.08 per image, but for gpt-image-2 you'll need to check the official documentation for the latest pricing.
If you subscribe to a paid ChatGPT plan (such as ChatGPT Plus or Pro), you may be able to use it as "ChatGPT Images 2.0" within ChatGPT for a fixed monthly fee. For beginners, we recommend trying it out through ChatGPT's image generation feature first, then deciding whether to move on to using the API in earnest. There may also be a free tier available, so check the latest pricing plans on the OpenAI official website.
Yes, GPT Image (gpt-image-2) supports Japanese, and its accuracy has improved dramatically. The April 2026 announcement specifically highlighted major improvements in rendering non-English text, including Japanese. For example, it can now generate images with naturally placed Japanese text, such as a manga with Japanese dialogue or a poster featuring a Japanese-language sign.
Previously, it was said that writing prompts (instructions) in English produced better results, but with gpt-image-2 you can give instructions in Japanese without any issues. That said, when you want to convey subtle nuances, using specific words will reduce mistakes. For instance, instead of "a cute cat," writing something like "a kitten with round eyes and white fur, wearing a pink collar" will make it much easier to get the image you have in mind.
According to OpenAI's terms of service, images generated with GPT Image are generally available for commercial use. You can use them as eye-catch images for blogs, social media posts, illustrations for documents, and more. However, while copyright in generated images is said to "belong to the user," debates around the data the AI was trained on are ongoing.
One important note: generating images using the names of celebrities or existing characters is prohibited under the terms of service. Using them for violent or discriminatory content, or for the purpose of spreading misinformation, is also not permitted. When using images commercially, be sure to check OpenAI's latest terms of service and content policy, and take care not to infringe on third parties' rights. If you're concerned, it's a good idea to develop the habit of reviewing generated images before publishing them.
The biggest differentiator of GPT Image (gpt-image-2) is its built-in Thinking capability. This is a feature not found in conventional image-generation AIs — it can perform a web search before generating an image to retrieve up-to-date information, or reason about the relationships between elements before drawing. For example, if you prompt it with "trendy fashion in 2026," the AI will research current trends and then create a realistic image.
Compared to competitors like Stable Diffusion and Midjourney, GPT Image tends to follow prompt instructions faithfully and is beginner-friendly. Midjourney, on the other hand, excels in artistic quality, while Stable Diffusion offers a high degree of customization. Which is best depends on your goals, but as of 2026, GPT Image (gpt-image-2) is said to be a step ahead in terms of Japanese language support and character consistency.
Yes, you can use it on a smartphone. By downloading the ChatGPT app for iOS or Android, you can access the "ChatGPT Images 2.0" feature powered by GPT Image (gpt-image-2). Just open the app, type your instructions into the chat field, and an image will be generated on the spot. It's convenient for turning ideas into visuals while commuting or out and about.
If you use it via the API, you can also operate it through a smartphone browser or programming app. However, since the screen is smaller, fine-tuning and comparing multiple images may be easier on a computer. We recommend that beginners start by casually experimenting with the smartphone app, and then switch to working on a computer when they're ready to use it more seriously.
If you're not getting the image you want, first review your prompt (instructions). Avoiding vague expressions and being specific about color, shape, and atmosphere will improve accuracy. For example, instead of just "the ocean," describe it as "a quiet sea at dusk, an orange sky, calm waves." If that still doesn't work, another effective approach is to attach a reference image and say something like "in this kind of style."
If you get an error, check OpenAI's status page to see if there's a system outage. Also, if your prompt includes content that violates the terms of service (such as violent or sexual expressions), generation will be blocked. If you still can't resolve the issue, posting a question in OpenAI's official help center or community forum will get you advice from experienced users. Japanese-language user communities are also growing, so try searching for them.
OpenAI is actively investing in image generation technology, and updates are expected to continue. The older "DALL·E GPT" is scheduled to end in August 2026, with a full transition to the GPT Image series underway. Further improvements in resolution, support for video generation, and real-time editing features are all anticipated.
Japanese and other multilingual support is also expected to be further enhanced, potentially enabling more natural text rendering and images that better reflect cultural contexts. The accuracy of the Thinking capability will also improve, making it possible to get the ideal image from complex instructions on the first try. If you start getting familiar with it now, you'll be well-positioned to take advantage of new features as soon as they arrive.
Start by giving simple instructions in the ChatGPT app and experience the world that AI creates. Once you get used to it, we also recommend challenging yourself with more serious production work using the API.
This article is a cross-post from AI Friends.