ComparisonPublished January 20, 2026Updated July 30, 20266 min readBy AI-0 editorial team

GPT Image 2 vs Grok Imagine Image and Grok Imagine 1.5

Compare three AI image models by prompt following, visual style, detail, and suitable use cases, then test each one with free credits on AI-0.

GPT Image 2, Grok Imagine, and Grok 1.5 comparison using three mechanical hummingbird images

GPT Image 2, Grok Imagine Image, and Grok Imagine 1.5 take different approaches to prompt following and style. All three are available through AI-0 credits. Here is where each fits.

Overview

GPT Image 2 suits detailed instructions and realistic images. Grok Imagine Image balances detail with stylistic range. Grok Imagine 1.5 tends to suit illustrative work.

Head-to-head comparison

Feature	GPT Image 2	Grok Imagine Image	Grok Imagine 1.5
Photorealism	Excellent	Excellent	Very Good
Artistic / Creative	Good	Very Good	Excellent
Prompt adherence	Excellent	Excellent	Very Good
Speed	Fast	Fast	Fast
Detail & resolution	Excellent	Excellent	Good
Text in images	Good	Good	Good
Best for	Portrait, product, commercial	High-detail, versatile	Art, concept, illustration
Free on AI-0	Yes	Yes	Yes

When to use GPT Image 2

Choose GPT Image 2 for realistic product shots, portraits, or layouts with specific composition instructions.

When to use Grok Imagine Image

Choose Grok Imagine Image when you need detail but still want room to explore different visual styles.

When to use Grok Imagine 1.5

Grok Imagine 1.5 works well for illustrations, concept art, and expressive social graphics. Its looser interpretation of prompts often produces interesting creative results.

Which model should you choose?

Start with GPT Image 2 for precise instructions, Grok Imagine Image for a balance of detail and style, or Grok Imagine 1.5 for illustration. Testing the same prompt in two models is often more informative than relying on a fixed ranking.

How to access all three models for free

GPT Image 2, Grok Imagine Image, and Grok Imagine 1.5 are all available on AI-0 at no cost. Watch a short ad to earn credits, then select any model from the image generation dashboard.