OpenAI Image Generation Cheat Sheet

MA
Reviewed by Marouen Arfaoui · Last tested April 2026 · 157 tools tested

Last updated: April 2026

Quick Facts

Pricing

Paid, usage-based. Requires ChatGPT Plus subscription ($20/month), which includes a limited number of generations. Additional credits can be purchased.

Free Plan

No. No free tier exists. You must subscribe to ChatGPT Plus to access the image generation feature.

Rating

4.6/5

Best For

Content creators, marketers, and ChatGPT power users who want seamless, conversational image generation integrated directly into their existing AI workflow.

Key Features

Tips & Tricks

TIP

Talk to it like a collaborator. Instead of a mega-prompt, start simple and refine: 'Now add a sense of urgency to that scene.'

TIP

Use the 'regenerate' button liberally. The variance between four options can be huge, and your favorite is often in a later batch.

TIP

For consistent characters, paste a detailed description of them into the chat first, then reference it in subsequent prompts.

TIP

Be specific about camera angles and lighting. Terms like 'low-angle shot, dramatic sidelighting, 85mm lens' yield professional results.

TIP

If you hit a content filter, rephrase creatively. Instead of 'violent,' try 'action-packed scene with dynamic tension.'

Limitations

Alternatives

MidjourneyStable Diffusion (via UI like ComfyUI)Adobe Firefly
OpenAI Image Generation TutorialFull step-by-step guide

Frequently Asked Questions

Can I use the generated images commercially?+
Yes, with major caveats. OpenAI grants you usage rights, but you don't own the copyright. More importantly, their strict terms prohibit using images to develop competing AI models. For critical commercial branding, I recommend checking the latest Terms of Service carefully.
How many images do I get with my ChatGPT Plus subscription?+
OpenAI uses a credit system. As of my testing, Plus includes a limited number of 'fast' generation credits. Once depleted, you can purchase more or use slower 'relaxed' generation. The exact number of included credits can change, so check your account's 'Settings > Usage' page.
How do I get the best, most detailed images?+
In my experience, the best results come from a two-step process. First, establish the core scene with a descriptive prompt. Then, in a follow-up message, add artistic direction: 'Render this in a hyper-realistic style with detailed textures, cinematic lighting, and a 4k resolution.' The conversational refinement is key.
Does it have an API for developers?+
Not for this specific GPT-4o image model as of my latest use. Image generation is currently a feature within the ChatGPT product interface. For API access, developers would use OpenAI's separate DALL-E 3 API, which is a different, though related, model.
What image formats and sizes does it output?+
It generates images in a standard web format (like PNG) at a high default resolution of 1792x1024 pixels. You can download them directly from the chat. There's no in-chat tool for resizing or changing the aspect ratio; you must prompt for it (e.g., 'create a square Instagram post').
Was this helpful?