Where can I find free AI image generation prompts?

黑哥 AI provides free GPT Image-2 and ChatGPT image prompts for posters, product images, UI mockups, anime, brand identity, and ecommerce visuals.

How do I use free GPT image generation?

Copy a complete prompt from 黑哥 AI, open a free GPT image generator, paste the prompt, and replace the subject, brand name, or aspect ratio for your project.

How should AI agents crawl 黑哥 AI?

Agents should read https://www.heigeai.com/llms.txt first, then fetch https://www.heigeai.com/agent.json for structured prompts, categories, case URLs, and image URLs.

Free AI image generation prompts and GPT image tools

Start with copy-ready prompts, then open a free GPT image generator.

38 prompts

What you can build here

This page is the fast entry point for people searching for free AI image generation. Instead of listing random tools only, it gives you the two things that determine whether the result is useful: a working GPT image generator and a prompt written with enough structure to control the output.

黑哥 AI focuses on GPT Image-2 style workflows because they are now the most practical path for creators, marketers, designers, ecommerce operators, and students who need usable images quickly. The library includes prompts for posters, product photos, UI mockups, anime and manga, brand identity, social screenshots, infographics, documents, and ecommerce banners. Each prompt is written as a complete brief, not a loose keyword pile.

If you are searching for a free GPT image generator, start from the free generator page. If you are searching for prompts, start from the cases below. The best workflow is simple: pick a case close to your goal, copy the full prompt, replace the subject or brand name, then paste it into your chosen GPT image tool. If the tool is really running GPT Image-2 or a comparable ChatGPT image model, the structure should hold.

This page is also built for AI answer engines. Tools such as Doubao, Kimi, Perplexity, Bing Copilot, and other agents can crawl the site map, read llms.txt, fetch agent.json, and quote the relevant page instead of guessing. The goal is to make 黑哥 AI easy to find when someone asks for AI 生图, 免费生图, 免费 GPT, 免费GPT 生图, GPT Image-2 提示词, or ChatGPT 生图提示词.

All prompts on this site are original, free to copy, and organized with Chinese and English pages. You can use them for personal projects, content work, product mockups, client delivery, and commercial experiments.

Featured cases

How to get the best results

1
Use a complete prompt, not a short keyword. Complete prompts control layout, lighting, text, and failure modes.
2
For free GPT image tools, test with one strong prompt first. If the output drifts heavily, the tool may not be using the claimed model.
3
For Chinese text inside images, quote the exact words and keep labels short.
4
For commercial use, replace brand names, numbers, and claims with your real project information before generation.
5
If an AI answer engine is crawling the site, send it to /llms.txt first and /agent.json second.