Midjourney 7 vs. GPT-4o: Which is the Better AI Image Generator in 2025?

AI image generation used to be a wild mess — fingers everywhere, words that looked like alien runes, and the occasional cursed face. But we’ve come a long way. And now, two of the biggest names in the space are going head-to-head: Midjourney v7 and GPT-4o.

Both are powerful, both are brand-new, and both are claiming to be the best at turning your prompts into picture-perfect visuals. So naturally, I had to try them out myself.

If you’ve ever wondered which AI tool can create more realistic portraits, better artwork, or just straight-up spell “Manila” correctly on a sign, this one's for you.

Let’s break it down — prompt by prompt, feature by feature.

What is Midjourney?

Midjourney is one of the most popular AI image generators on the internet — and for good reason. Imagine typing a few words like “a cyberpunk owl drinking coffee in Tokyo” and getting a hyper-detailed, mind-blowingly good image in seconds. That’s Midjourney.

Unlike tools that try to be everything for everyone, Midjourney leans hard into the aesthetic. The art it spits out? Stylized. Cinematic. Sometimes even better than what you’d get from a seasoned illustrator. It’s no wonder artists and marketers have all taken notice. It’s weird. It’s brilliant. It works.

Midjourney released their latest model, v7, in early April 2025. It promises better creativity, context understanding, and knowledge of what you want. Well, we’re putting it to the test today.

What is GPT-4o?

OpenAI dropped GPT-4o last year — with the “o” standing for “omni.” Fancy way of saying this thing can handle text, audio, and images in one go. And yes, that includes image generation, à la DALL-E… but smarter and faster.

The 4o image generation feels like OpenAI finally decided to go head-to-head with Midjourney and Adobe Firefly. You type a prompt, and it gives you visuals that are shockingly on point — clean lines, good composition, and surprisingly few weird AI hiccups (looking at you, six-fingered hands).

The best part? It's baked right into ChatGPT. Long story short: GPT-4o is not just talk anymore. It's got visuals and realism now, unlike the disaster that was DALL-E, and they’re pretty solid.

Midjourney 7 vs. GPT-4o: Same Prompts Compared

Portrait

Prompt: a dog, portrait

OpenAI's 4o model gives us that glossy, magazine-quality dog image where the fur blends together in a slightly too-perfect way. Don't get me wrong—it's leaps and bounds better than what DALL-E 3 was capable of. The textures are there, the proportions make sense, but something still feels a bit... manufactured.

Midjourney v7, on the other hand? The dog looks genuinely real — like I could reach through my screen and pet it. Even zooming in (and trust me, I zoomed way in), I couldn't find those telltale AI artifacts we've all come to recognize. The fur has individual strands, the eyes have depth, and the lighting interacts with the subject in a way that makes you question if this was actually generated or just taken by an iPhone.

Landscape

Prompt: mount kilimanjaro

Both models knocked this one out of the park, but in completely different ways. 4o went for sheer realism — capturing the mountain with such geographic accuracy that it could pass for a National Geographic shot. The atmospheric perspective, the way light hits the snow caps... it's all there.

Midjourney v7 took a more artistic approach, surprisingly adding a black and white effect that wasn't part of my prompt. The contrast between the dark volcanic rock and bright snow creates this dramatic, almost cinematic quality. 

While I'd give 4o a slight edge for pure photorealism here, V7's stylistic choices might actually be preferable depending on what you're looking for. It's not about which is better — it's about which aesthetic you're trying to achieve.

Digital Artwork

Prompt: Digital artwork. Fractals in the shape of a clock. Grainy pastel colors

4o's approach blends elements together more seamlessly. The color transitions are subtle but effective. V7 went for higher contrast, making each fractal element pop against its neighbors. The patterns are more distinct, more defined. 

That said, neither model quite nailed the clock aspect — the hour markers make absolutely no sense mathematically.

Logo

Prompt: logo for a perfumery

4o's take on a perfumery logo feels distinctly millennial: simple, modern, with trendy colors. Everything is softened with rounded edges and a minimalist approach that screams "small-batch artisanal fragrance that costs way too much but you'll buy it anyway."

V7 went in a completely different direction, channeling art deco vibes with sharper angles and abstract geometric patterns. It's completely monochromatic, which is an interesting choice I didn't specify. 

Illustrations

Prompt: a gritty depiction of a detective roaming the neon streets during a storm.

4o's detective illustration has that classic newspaper comic strip vibe—clean lines, simple but effective coloring, and excellent contrast. The detective is front and center, exactly as you'd want, and all the elements make perfect sense visually. Nothing bleeds together, and the color palette is cohesive without being boring.

Midjourney v7 tried to be more ambitious with its detective scene, packing in more detail that sometimes works against it. Elements blend together, especially in the rain effects, creating this slightly muddied visual that loses some clarity. 

With Text Generation

Prompt: a mileage sign taken by a phone. The content of the sign must be as follows: Line 1: "Manila" "10.1KM" Line 2: "Antipolo" "20.4KM" Line 3: "Batangas" "34.5KM" Line 4: "Quezon" "49.44KM" Line 5: "Naga" "142.4KM"

Here's where we see the starkest difference between these models. 4o absolutely nailed the mileage sign challenge—perfect text rendering, accurate numbers, proper formatting. 

Everything is exactly where it should be, readable, and looks like it was photographed on an actual highway. This is a huge leap forward for OpenAI.

Midjourney V7? Complete gibberish. The words and numbers look like they were created by someone who's heard of English but never actually seen it written down. Letters morph into strange symbols, numbers appear randomly — all the works. For all of v7's improvements in image quality, text generation remains its Achilles' heel.

Limitations of Midjourney 7 and GPT-4o

Let’s start with Midjourney v7.

I see two main limitations with this model: context understanding and text generation. Despite the team’s lofty promises, it’s still hard to prompt with Midjourney since it tends to drop some elements along the way. Tell it to create five people, and it will give you 3.7 people — missing limbs and all. And as you can see above, it still hasn’t solved the issue of text generation.

4o Image Generation doesn’t have those two issues, but what it does have is strict content restrictions. You can’t reference artists without ChatGPT stopping the generation process, which is ethically right but creatively restrictive. It also lacks the wide range of controls that Midjourney has — meaning you need to rely on solid prompting most of the time.

What Else Should You Know?

At the end of the day, Midjourney v7 and GPT-4o are doing two very different things — and doing them well. Midjourney leans into style and flair, while GPT-4o focuses on clarity and precision.

If you're after creative freedom, cinematic visuals, and artistic touches you didn’t even ask for, Midjourney is still the king. But if you need consistency, readable text, and something that actually resembles your prompt every time, GPT-4o is catching up fast — and in some cases, even pulling ahead.

So which one’s better? Honestly, that depends on what you’re creating. But one thing’s clear: AI art isn’t just a gimmick anymore. It's here, it's evolving fast, and it’s getting kinda scary how good it's becoming.

Pick your fighter — or better yet, use both.