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AI Image Generators Compared: Quality, Licence and Price

AI image generators compared on quality, licence and price: Midjourney, Firefly, FLUX, Ideogram and Stable Diffusion, with commercial use checks.

October 27, 2026 Updated November 4, 2026 6 min read
AI Image Generators Compared: Quality, Licence and Price

Key takeaways

  • AI Weekly lists Midjourney from 10 dollars a month with no free tier, and Adobe Firefly from 9.99 dollars a month with 25 free credits a month.
  • Firefly is trained on licensed Adobe Stock and public-domain images, and its outputs carry Content Credentials, per AI Weekly.
  • Stable Diffusion 3.5 is free commercially under a 1 million dollar revenue cap, and FLUX.2 [dev] weights are non-commercial only.
  • Ideogram 4.0 is strong at text inside images, and AI Weekly says to read its licence before building on it.
  • Prodia notes the US Copyright Office view that visuals made solely with AI cannot get copyright protection without considerable human involvement.

AI Weekly’s July 28, 2026 comparison of AI image generators shows prices that range from a free self-hosted Stable Diffusion setup to 10 dollars a month for Midjourney’s Basic plan, 9.99 dollars for Adobe Firefly Standard and about 0.03 to 0.10 dollars per image for Ideogram through its API. Those figures, plus the licence terms behind them, are what a real AI image generator comparison should weigh.

This guide compares leading tools on quality, licence and price, explains how to check commercial use terms, and covers copyright caveats. It draws on AI Weekly and Prodia. Prices and licences change, so confirm them on each provider’s page before you pay.

How to Compare AI Image Generators

Three questions decide most choices. Is the image quality good enough for your use? What does it cost at your volume? Does the licence allow what you want to do with the images?

The best tool for a social media graphic is not always the best for a client logo or a book cover. Match the tool to the job and to the risk.

Quality, Price and Free Tier at a Glance

This table comes from AI Weekly’s July 2026 comparison. Prices are starting points and may change.

ToolStrength (AI Weekly)Starting priceFree tier
Midjourney (V8.2)Artistic output, native 2K10 dollars a month (Basic)None
OpenAI gpt-image-2Instruction following and editingAbout 0.005 to 0.006 dollars an image (low quality)None listed
Adobe Firefly (Image Model 5)Commercial IP safety, Creative Cloud9.99 dollars a month (Standard)25 credits a month
FLUX.2Photorealism, API pricingAbout 0.014 dollars per megapixel (klein 4B)[dev] free for non-commercial use
Ideogram 4.0Text inside imagesAPI 0.03, 0.06 or 0.10 dollars per imageOpen weights, non-commercial
Stable Diffusion 3.5Fine-tuning, no per-image costFree apart from hardwareFree to self-host
Google Imagen 4Pay per image on Vertex AIAbout 0.02 to 0.04 dollars per imageNone listed

Prodia’s May 2026 comparison adds DALL-E 3 at 20 dollars a month as a subscription, Midjourney from 10 dollars a month and FLUX.1 Kontext dev at 0.015 dollars per image via SiliconFlow. Pricing models differ between articles, so always check the provider.

Licence and Commercial Use: What to Check

AI Weekly gives a practical summary of licences. It also says Midjourney’s terms change periodically, so read them before commercial work.

ToolLicence notes (AI Weekly)
MidjourneyPaid subscribers get a broad commercial licence under the terms, which change periodically
Adobe FireflyTrained on licensed Adobe Stock and public-domain images; outputs carry Content Credentials (C2PA)
FLUX.2[dev] weights are non-commercial only; FLUX.1 [schnell] is Apache 2.0 and usable commercially
Ideogram 4.0Open weights are non-commercial; commercial self-hosting needs a paid licence; outputs cannot train competing models
Stable Diffusion 3.5Free for commercial use under a 1 million dollar annual revenue cap; enterprise licence above
OpenAI and Google ImagenNot addressed in the article; check provider terms

This is general information, not legal advice. If you plan to sell products, brand work or client assets, check the current terms and consider asking a qualified lawyer.

Copyright: Who Owns an AI Image

Prodia says the US Copyright Office indicates that visuals created solely with AI cannot obtain copyright protection without considerable human involvement. That means you may use an image, but may not be able to stop others copying it.

If an image is central to your brand, add substantial human work, such as editing and composition, and keep records of your process. For questions on ownership, consult a qualified legal professional.

Which Tool for Which Job

Use this as a starting point and test two tools on your own brief.

Your jobTool to try firstWhy
Artistic illustrationsMidjourneyStrong artistic output
Commercial work where provenance mattersAdobe FireflyLicensed training data and Content Credentials
Images with text in themIdeogram 4.0Strength in text rendering
Photorealistic images through an APIFLUX.2Photorealism and API pricing
Developers wanting no per-image costStable Diffusion 3.5Free to self-host, with a revenue cap
Editing from instructionsOpenAI gpt-image-2Instruction following and image editing

If you want to understand what happens inside these tools, our explainer on how diffusion models work is a good next read.

Using AI Images Responsibly

Label AI-generated images where readers would expect it, avoid imitating a living artist’s style for commercial use, and check images for errors such as extra fingers or garbled text. Our guide to detecting AI-generated content explains why labelling matters.

If you are thinking about selling your work, read our overview of stock photography as passive income, and check each marketplace’s policy on AI-made images first.

Related readBest Free Tools to Learn AI Skills in 30 DaysRead →

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FAQs

Which AI image generator is best?

It depends on the job. AI Weekly describes Midjourney as strong for artistic output, Adobe Firefly for commercial IP safety, Ideogram for text inside images and FLUX.2 for photorealism. Test two tools on your own brief and compare quality, price and licence. Run the same prompt through two or three tools, compare the results side by side, and judge them against your real use, such as a social post, a print or an advert.

Can I use AI images commercially?

Often yes, but terms differ. AI Weekly says Midjourney paid subscribers get a broad commercial licence, Firefly is trained on licensed Adobe Stock and public-domain images, and some open models are non-commercial only. Read each licence and ask a lawyer for high-stakes use. For anything high value, such as branding, product packaging or resale, read the current terms carefully and get qualified legal advice, because the rules differ between tools and plans.

Is Stable Diffusion free for commercial use?

AI Weekly says Stable Diffusion 3.5 is free for commercial use under a 1 million dollar annual revenue cap, with an enterprise licence above that. It is free to self-host apart from hardware cost. Confirm the current licence text before you rely on it. Hardware and set-up costs apply if you self-host, so compare that with paying per image, and make sure your business is comfortably under the revenue cap.

Can I copyright an AI-generated image?

Prodia says the US Copyright Office indicates that visuals created solely with AI cannot obtain copyright protection without considerable human involvement. Add real human work and keep records. For questions on ownership, speak to a qualified legal professional. That makes your own editing, composition and record keeping valuable, so save your prompts, drafts and edits, and speak to a lawyer if the image matters to your business.

How much do AI image generators cost?

AI Weekly lists Midjourney from 10 dollars a month, Adobe Firefly Standard at 9.99 dollars a month, Ideogram’s API from 0.03 dollars an image and Stable Diffusion free to self-host. Prices change, so check the provider’s page and your expected volume. Subscription tools suit regular use, while pay-per-image options can suit occasional use, so estimate how many images you really need each month before you choose.

Which AI image generator is safest for business use?

AI Weekly highlights Adobe Firefly for clear commercial provenance, since it was trained on licensed Adobe Stock and public-domain images and adds Content Credentials. No tool removes all risk, so check terms, keep records and ask a lawyer about high-value work. Also check that you have the right to use any reference images you upload, avoid copying real people or living artists’ styles, and label AI work where readers would expect it.

Run a Two Tool Test Before You Subscribe

Image models improve every few months, and licences change just as often. A loyalty to one tool is a habit, not a strategy.

Write one real brief, run it through two tools, and save the prompts and settings. Then read the licence for your preferred tool, note the date and review it each quarter. That small routine protects both your budget and your work.

Sources: AI Weekly: Best AI image generators; Prodia: Compare AI image generators for commercial use

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Jenny Edwards
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Jenny Edwards

Jenny Edwards is an SEO and Digital Growth Specialist with 5+ years of experience in Technical SEO, AI SEO, International SEO, and organic growth strategy. She helps businesses improve search visibility through data-driven SEO, content optimization, search experience improvements, and AI-focused search strategies. Her work focuses on helping brands grow through sustainable and future-ready digital marketing.

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