OpenAIのGPT Image 2.5を無料で利用できます。登録不要、ChatGPT Plus不要、生成回数は無制限です。
シンプルなプロンプトから、キャンペーン、商品コンセプト、SNS投稿、イラスト、日常の制作に使える完成度の高いビジュアルを生成します。被写体、構図、スタイル、光、必要な文字を指定し、同じワークスペースで調整できます。

Create images from text, revise existing visuals, improve composition, add readable text, and explore new styles without switching tools. GPT Image 2.5 keeps generation and iterative editing in one workflow.


Explore product shots, posters, portraits, and campaign concepts from the same brief. Keep the core idea fixed while testing composition, lighting, style, and aspect ratio.
Use clear instructions and reference images to preserve the subject, layout, colors, and visual identity as you refine an image across multiple passes.

Produce product concepts, lifestyle scenes, and campaign assets while keeping backgrounds, lighting, and brand direction consistent across a catalog.


Turn a simple concept into multiple visual directions for Instagram, TikTok, YouTube, and paid social campaigns.
Generate ad concepts, banners, posters, and launch visuals on demand, shortening the path from brief to polished creative.


Create characters, scenes, story moments, and personal artwork, then refine details through natural-language instructions.
Generate, refine, and download an image in three simple steps.
Step 1: Describe Your Idea
Specify the subject, composition, style, lighting, text, and intended use.
Step 2: Choose & Configure
Confirm GPT Image 2.5 and set the aspect ratio, quality, and quantity.
Step 3: Generate, Refine & Download
Review the result, request changes with another prompt, and download the final image.

Start with one prompt, then generate, edit, and refine your visual in the same workspace.