GPT Image 1.5 vs Nano Banana Pro vs Midjourney v7

Update: GPT Image 2 has since been released with significant improvements over GPT Image 1.5. See our GPT Image 2 complete guide and GPT Image 2 vs GPT Image 1.5 comparison. This article compares the GPT Image 1.5 generation.

The AI image generation space has three clear frontrunners in 2026: GPT Image 1.5 from OpenAI, Nano Banana Pro, and Midjourney v7. Each takes a fundamentally different approach. We ran 30 identical prompts through all three on PonPon and scored the results.

Photorealism

Winner: GPT Image 1.5

GPT Image 1.5 produces the most photorealistic output of the three. Skin texture, lighting subtlety, and environmental detail are exceptional. Images look like they came from a high-end camera, not a model. Midjourney v7 is close behind with its signature cinematic quality. Nano Banana Pro is production-ready but slightly less nuanced in extreme close-ups.

For product photography and marketing assets where realism matters, GPT Image 1.5 has the edge.

Text rendering

Winner: GPT Image 1.5 (slight edge over Nano Banana Pro)

GPT Image 1.5 sets the bar for text in images — logos, signs, labels, and UI elements render cleanly and legibly even at small sizes. Nano Banana Pro is nearly as good and handles most text rendering tasks without issues. Midjourney v7 has improved but still occasionally produces garbled text, especially with longer strings.

Illustration and stylized art

Winner: Nano Banana Pro

For anything non-photorealistic — anime, watercolor, vector art, concept illustrations — Nano Banana Pro produces the cleanest and most intentional output. It follows style descriptions precisely without adding unwanted artistic interpretation. Midjourney v7 imposes its distinctive aesthetic on everything, which is beautiful but limiting. GPT Image 1.5 handles illustration competently but lacks Nano Banana Pro's range.

Speed

Winner: Nano Banana Pro (5-15s) > GPT Image 1.5 (10-25s) > Midjourney v7 (30-60s)

Nano Banana Pro is the fastest by a significant margin. For iterative workflows — refining a concept over dozens of generations — this speed advantage compounds. GPT Image 1.5 is reasonable. Midjourney v7 is the slowest of the three.

Prompt adherence

Winner: GPT Image 1.5

GPT Image 1.5 follows complex, multi-part prompts with remarkable accuracy. Specify six elements in a scene and all six appear correctly. Nano Banana Pro is literal and reliable for straightforward prompts. Midjourney v7 takes the most creative liberties, sometimes adding elements or moods you did not request.

Ease of use

Winner: Nano Banana Pro and GPT Image 1.5 (tied)

Both offer clean web interfaces on PonPon — type a prompt, adjust settings, generate. Midjourney v7's Discord-based workflow remains a barrier for new users despite ongoing improvements to their web UI.

Pricing comparison

On PonPon, all three draw from the same credit wallet. No separate subscriptions required.

Workflow integration

On PonPon, images from any of these generators can feed directly into the video pipeline. Generate a product shot with GPT Image 1.5, then animate it with Kling 3.0 or Sora 2. Create a character illustration with Nano Banana Pro, then bring it to life with Seedance 2.0. The image-to-video pipeline is seamless regardless of which image model you start with.

When to use each

• GPT Image 1.5: Product photography, marketing assets, text-heavy designs, maximum photorealism
• Nano Banana Pro: Fast iteration, stylized art, illustration, concept exploration, speed-critical workflows
• Midjourney v7: When you want the Midjourney aesthetic, artistic interpretation, mood-driven imagery

The verdict

There is no overall winner. GPT Image 1.5 leads on photorealism and text. Nano Banana Pro leads on speed and stylized output. Midjourney v7 has a unique artistic voice. The professional approach is to have all three available and choose based on the project. PonPon makes this easy with a single credit wallet across all models.