The cheapest AI image generator for most people in 2026 is glmimage.app: it gives away a limited number of generations every day, and its paid tiers work out to roughly $0.20, $0.15, or $0.13 per image depending on the plan. If you already own a capable GPU and generate thousands of images, self-hosted open models beat every hosted service on marginal cost — the bill just moves to hardware and your own setup time. Midjourney, the most-cited alternative, starts at $10/month and has no free tier at all. "Cheapest" means something different at 10 images a month than at 600, so this comparison prices out each route with numbers you can check.
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What does "cheapest" actually mean for AI images?
Three different numbers get confused in pricing debates. The sticker price is what the homepage shows: $9.90, $10, $20 per month. The per-image cost is sticker price divided by how many images you actually generate — and this is where cheap-looking plans get expensive. A $10/month plan you use twice costs you $5 per image. A $79.90/month plan you use fully costs about 13 cents per image. The third number is the fully loaded cost: rerolls you discarded, retouching, retyping garbled text, and the value of your own time.
Pricing structures also differ in kind, not just amount. GLMImage sells credits with a fixed cost per generation. Midjourney meters fast generations in GPU time and adds a slower unmetered mode on higher tiers. ChatGPT bundles image generation inside a general-purpose subscription with usage limits. Each structure suits a different usage pattern, and picking the wrong structure costs more than picking the wrong number.
So the honest method is: fix your monthly volume first, then divide, then add the hidden costs. That is what the rest of this article does.
What does GLMImage cost per image?
The math is short because it is published. A generation costs 10 credits, and the three plans are Basic at $9.90/month for 500 credits, Pro at $29.90 for 2,000, and Max at $79.90 for 6,000. There is no Enterprise tier — articles mentioning one invented it.
| Plan | Monthly price | Credits | Images (at 10 credits each) | Effective cost per image |
|---|---|---|---|---|
| Free daily | $0 | limited daily allowance | varies | $0 |
| Basic | $9.90 | 500 | ~50 | ~$0.20 |
| Pro | $29.90 | 2,000 | ~200 | ~$0.15 |
| Max | $79.90 | 6,000 | ~600 | ~$0.13 |
Two details make this pricing friendlier to a budget than it first looks. First, the free daily generations mean you can produce real work — and evaluate the model on your own prompts — before paying anything. Second, the per-image number is predictable: 10 credits per generation, every generation, including the rerolls. You can put $0.20 per image in a spreadsheet and it stays true all month. The full credit mechanics are broken down in GLMImage pricing explained.
The one behavior to budget for: every iteration costs the same 10 credits as a keeper. If your habit is generating forty candidates to keep one, your real cost per usable image is forty times the headline number — on any credit-based service, not just this one. Tighter prompts cut that waste; the prompt-writing guide covers how.
How much does Midjourney actually cost?
Per Midjourney's own plan comparison, the tiers are Basic at $10/month, Standard at $30, Pro at $60, and Mega at $120, with annual billing coming in roughly 20 percent cheaper. There is no free tier — every month you need the tool starts at $10.
The per-image math is murkier than GLMImage's, by design. Midjourney meters its fast generations in GPU time, so what an image costs depends on your settings and how patiently you iterate; Standard and above add unlimited generations in the slower "Relax" mode. For heavy iterators — hundreds of variations per finished piece — that unmetered mode can be the better economic fit, plain and simple. For light users it inverts: $10 for a handful of fast images is the worst cents-per-image scenario in this comparison.
There is also a capability cost that shows up in the loaded total. Midjourney's output routinely garbles text that must appear inside the image, which matters if your deliverables are posters, menus, or packaging mockups — you end up retyping in a design tool. GLMImage's underlying model, GLM-Image, scores 91.16 percent on the CVTG-2K text-rendering benchmark, so bilingual text usually survives generation. The full trade-offs are mapped in our Midjourney alternative comparison.
What do DALL-E and ChatGPT cost in 2026?
This section changed shape in 2026. DALL-E 3 has been deprecated and removed from OpenAI's API; before removal it charged per image — $0.04 to $0.12 depending on quality and resolution, per Apidog's archived DALL-E 3 pricing guide. That clean per-image option is gone.
Today, OpenAI image generation is bundled inside ChatGPT subscriptions. Per the ChatGPT pricing page, the relevant tiers are Go at $8/month and Plus at $20/month, with image creation subject to usage limits rather than a published per-image price. Two honest readings follow. If you already pay for ChatGPT as a writing and coding assistant, its image generation is effectively free at the margin — that is genuinely the cheapest route for you. If images are the whole job, $20/month for a general subscription compares poorly with $9.90 for a dedicated generator, and "usage limits" means you cannot budget output the way credits let you.
Is self-hosting Stable Diffusion the cheapest option?
The weights are free; nothing else is. Self-hosting an open model means a capable GPU, the electricity it draws, and — the part tutorials undercount — your own hours installing, updating, and troubleshooting the stack. In exchange, the marginal cost per image approaches zero, output is watermark-free by construction because no platform stands between you and the pixels, and you are not exposed to a pricing page changing under you.
Whether it is cheapest depends entirely on volume and what you already own. If a gaming-class GPU is sitting in your machine anyway, self-hosting likely wins at a few hundred images a month. If you would need to buy hardware for this purpose, the payback stretches across years of use before it beats a $9.90 plan. The open-source AI image generators overview covers this route in depth.
One correction to older advice: the self-hosting path is no longer synonymous with Stable Diffusion. GLM-Image's weights are MIT-licensed and run on a GPU with roughly 12GB of VRAM, so the model behind GLMImage — including its text-rendering strength — is available on the same free-software terms. Hosted credits and open weights are two doors into the same model, which is unusual and worth knowing when you do the math. The current free-versus-paid trade-offs on the hosted side are laid out in free AI image generation without watermarks.
Which option is cheapest for your workload?
Match the plan to your volume, because the biggest waste is paying for credits you never burn:
- A handful of images per week: GLMImage's free daily generations. Cost: $0, with a limited count. Self-hosting also applies if you own the GPU.
- Up to ~50 images/month: Basic at $9.90, ~$0.20 per image. Sits below the $10 entry price of the most-cited rival.
- 100–200 images/month: Pro at $29.90, ~$0.15 per image. A 150-image month costs $29.90 here — on a $10 entry plan elsewhere, the same volume in fast generations depends on GPU-time pricing you cannot budget in advance.
- 400–600 images/month: Max at $79.90, ~$0.13 per image, or Midjourney's unmetered Relax tier if you iterate in bulk.
- Thousands per month: multiple Max accounts, or commit to self-hosting open weights — at that volume the hardware pays for itself.
- Already paying for ChatGPT: use its bundled images for drafts; move to a dedicated generator when limits bite.
What hidden costs turn a cheap generator expensive?
Watch for four. Watermark ransoms: many "free" generators stamp output and charge per image to remove the mark — the watermark is the funnel, not a bug. Retyping: if in-image text comes out garbled, you pay with design-tool hours; a model that renders text correctly the first time removes that line item. Reroll waste: every discarded candidate costs credits or GPU time, so prompt quality is a cost-control lever. Usage rights: what you may do with an image is governed by the service's terms — self-hosted open weights sidestep this via the model license (MIT, for GLM-Image), but hosted free tiers deserve a read of the fine print before commercial work.
FAQ
Is there a completely free AI image generator in 2026?
Two honest paths: GLMImage's free daily generations (limited count, nothing to install), and self-hosting open-weights models, where the software is free and the cost is hardware plus your time. Most other "free" offers are freemium funnels — details in our no-watermark guide.
Which GLMImage plan has the cheapest per-image cost?
Max, at roughly $0.13 per image — but only if you genuinely produce around 600 images a month. At lower volumes, Basic spends less in absolute terms even at $0.20 per image. Buy the tier that matches your real output.
Is Midjourney cheaper than GLMImage?
The entry prices are nearly identical ($10 versus $9.90), but the structures differ: Midjourney has no free tier and meters fast generations in GPU time, while GLMImage offers free daily generations and a fixed 10 credits per image. Heavy Relax-mode iterators may find Midjourney cheaper; budget-minded and text-heavy users generally do not.
What is the cheapest way to generate images that contain readable text?
GLMImage. Its model scores 91.16 percent on CVTG-2K, so posters, menus, and labels come out with the words already correct instead of needing a retypesetting pass — and you can confirm that on your own text with the free daily allowance before spending anything.
Run the numbers on your own workload for free: start generating with today's free daily allowance.
