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GPT-4.5 vs Grok Imagine Image: Which Is Better? [2026 Comparison]
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  3. GPT-4.5 vs Grok Imagine Image
Updated Dec 1, 2025

GPT-4.5 vs Grok Imagine Image

Compare GPT-4.5 by OpenAI against Grok Imagine Image by xAI. Updated April 2026.

Which is better, GPT-4.5 or Grok Imagine Image?

GPT-4.5 and Grok Imagine Image are both competitive models. Compare their real outputs side by side below.

Key Differences Between GPT-4.5 and Grok Imagine Image

GPT-4.5 is made by openai while Grok Imagine Image is from xai.

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GPT-4.5vsGrok Imagine Image

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GPT-4.5 logo

Why GPT-4.5?

Dead even. This one's a coin flip.
Grok Imagine Image logo

Why Grok Imagine Image?

9 months newerDec 2025
GPT-4.5Grok Imagine Image
Input price
$75.00/M
—
Output price
$150.00/M
—
Context
128K
—
Released
Feb 2025
Dec 2025
0 / 0
Our Verdict
GPT-4.5
GPT-4.5
Grok Imagine Image
Grok Imagine Image

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

Too close to call
vs

Ask them anything yourself

GPT-4.5Grok Imagine Image

Some models write identically. You are paying for the brand.

178 models fingerprinted across 32 writing dimensions. Free research.

Model Similarity Index

185x

price gap between models that write identically

178

models

12

clone pairs

32

dimensions

Devstral M / S
95.7%
Qwen3 Coder / Flash
95.6%
GPT-5.4 / Mini
93.3%
Read the full reportor download the 14-slide PDF

279 AI models invented the same fake scientist.

We read every word. 250 models. 2.14 million words. This is what we found.

AI Hallucination Index 2026
Free preview13 of 58 slides
Download the free previewor get all 58 slides for $49
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Grok Imagine Image logoGPT-4o (Omni) logo

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