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Feature comparison overview

Compare GPT Image 1.5 vs Flux 2 Pro side by side to understand how they differ in text rendering, speed, resolution, and creative flexibility.

Feature

Developer

Architecture

Max resolution

Generation speed

Text rendering

Prompt adherence

Photorealism

Reference images

Editing / inpainting

Open source

Fine-tuning

Pricing

GPT Image 1.5

OpenAI

Unified text + image model

~1.5MP (1536x1024)

10-20 sec

Best-in-class (~96% accuracy)

Excellent, instruction-first

Clean, commercial output

Up to 6

Context-aware editing

Not supported

From ~$0.009/image

Flux 2 Pro

Black Forest Labs

32B parameter flow model

4MP (2048x2048)

~3 sec

Good (~60% first attempt)

Good, more interpretive

Cinematic, editorial depth

Up to 10

High-res editing support

Yes (variants available)

LoRA supported

~$0.03-0.055/image

These models perform nearly the same on benchmarks, but differ in output style. GPT Image 1.5 focuses on precision, delivering highly accurate text, clean layouts, and reliable prompt adherence - ideal for branded and text-heavy designs. Flux 2 Pro focuses on visual depth, producing more realistic lighting, textures, and higher-resolution images with a more artistic feel. The choice comes down to intent. GPT Image 1.5 is better for structured, text-driven content, while Flux 2 Pro is better for cinematic visuals and high-resolution creative work.

Speed creates a clear advantage for Flux 2 Pro. It generates images in seconds, making it ideal for rapid iteration and bulk production, while GPT Image 1.5 takes longer but delivers more controlled results. Pricing depends on usage. GPT Image offers lower-cost options at basic quality, while Flux becomes more cost-effective at higher resolutions. Flux also supports open-weight models and fine-tuning, while GPT Image is closed but tightly integrated with ChatGPT for conversational editing.

Choose GPT Image 1.5 when accuracy matters, especially for designs with text like labels, packaging, and brand assets. It's a strong fit for structured workflows and projects where following instructions precisely is critical, including conversational editing through ChatGPT. Choose Flux 2 Pro when visual quality and speed take priority. It works best for photorealistic images, high-resolution outputs, and creative work like concept art or editorial visuals, especially when generating images at scale or using custom styles.

If you are aiming for precise text rendering, strong prompt control, and reliable results, GPT Image 1.5 is the better fit, especially for brand assets, product images with labels, and text-heavy designs. If you need speed, higher resolution, and more photorealistic visuals, Flux 2 Pro is a stronger choice for creative work, editorial imagery, and large-scale production. If you want flexibility, use Picsart to access both models and choose the best one for each project.

GPT Image 1.5 vs Flux 2 Pro FAQ

Is GPT Image 1.5 better than Flux 2 Pro?

Which has better text rendering?

GPT Image 1.5 performs significantly better, with very high accuracy for text in images. It's the better choice for labels, logos, and any design that depends on clean, readable text.

Which is faster?

Flux 2 Pro is much faster, generating images in just a few seconds. GPT Image 1.5 takes longer but provides more controlled and predictable outputs.

Which generates higher resolution images?

Flux 2 Pro supports higher resolution output, producing images up to 4MP. GPT Image 1.5 generates lower-resolution images in comparison.

Can I fine-tune either model?

Flux 2 Pro supports fine-tuning through its open variants, allowing custom styles. GPT Image 1.5 does not support fine-tuning and is available through API-based access.

Which is cheaper?

Pricing is similar at standard quality. GPT Image 1.5 offers lower-cost options at basic tiers, while Flux 2 Pro becomes more cost-efficient at higher resolutions.

Which is better for product photography?

GPT Image 1.5 is better for products with text or branding. Flux 2 Pro is better for lifestyle or editorial product visuals where lighting and realism matter more.

Where can I try both?

You can try GPT Image 1.5 and Flux 2 Pro in Picsart AI Playground, where you can compare results side by side using the same prompt.

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