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Image model comparison · 2 models · Updated Nov 2, 2026

GPT-5.4 Image 2 vs Grok Imagine Image

Newest: GPT-5.4 Image 2 · Widest inputs: GPT-5.4 Image 2 · Self-hosting: No open weights. Not enough arena votes yet for a quality score, so this is a spec comparison.

  1. OpenAI

    GPT-5.4 Image 2

    Released Apr 21, 2026

    • Text to image
    • Image editing
    • Arena—
    • From—
    • Max size—
    Full specs Remove GPT-5.4 Image 2

  2. xAI

    Grok Imagine Image

    Released Jan 28, 2026

    • Text to image
    • Image editing
    • Arena1,329
    • From$0.02/image
    • Max size2K
    Full specs Remove Grok Imagine Image

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01 — At a glance

Where they differ

Quality is the arena score from blind, side-by-side human votes. Price, length and resolution come from each lab’s own listings.

  • NewestGPT-5.4 Image 2GPT-5.4 Image 2 Apr 21, 2026 · Grok Imagine Image Jan 28, 2026
  • Widest inputsGPT-5.4 Image 2GPT-5.4 Image 2: Text prompts, Reference images, PDFs · Grok Imagine Image: Text prompts, Reference images
  • Image editingBoth edit imagesTakes a reference image as input: GPT-5.4 Image 2 yes · Grok Imagine Image yes
  • Self-hostingNo open weightsBoth are available only through APIs and apps
  • Most API hostsSame reachGPT-5.4 Image 2: 3 · Grok Imagine Image: 3
02 — Side by side

Every spec in one table

Dashes mean the data is not published.

GPT-5.4 Image 2 vs Grok Imagine Image specifications side by side
SpecificationGPT-5.4 Image 2OpenAIGrok Imagine ImagexAI
Quality (blind human votes)
Text to image arenaElo-style score · higher is better—1,169 ±3#25 of 82 · 286,515 votes
Image editing arenaElo-style score · higher is better—1,329 ±2#24 of 61 · 805,966 votes
Price
Starting price—$0.02/image 1K–2K
Extra charges—$0.002 per input image
How it is billed—Per image
Output
ProducesImagesImages
Resolutions—1K · 2K
Highest resolution—2K
Largest image—2K
Images per request—Up to 10
Inputs
Text promptsYesYes
Reference images (editing)YesYes
Max reference images—5
Access
WeightsProprietaryProprietary
API model ID—grok-imagine-image
API hosts33
ReleasedApr 21, 2026Jan 28, 2026
03 — Questions

Which should you choose?

Which is better, GPT-5.4 Image 2 or Grok Imagine Image?

Neither model has enough arena votes for a reliable quality score yet, so this page compares specs only. Run the same three or four prompts through each and judge the results.

Which is cheaper?

Grok Imagine Image costs from $0.02/image (1K–2K). GPT-5.4 Image 2 has no published per-image price. Prices are list rates and change often; check the lab before budgeting.

What is the difference between GPT-5.4 Image 2 and Grok Imagine Image?

GPT-5.4 Image 2 is an image model from OpenAI (Apr 21, 2026), taking text prompts, reference images and pdfs and producing images. Grok Imagine Image is an image model from xAI (Jan 28, 2026), taking text prompts and reference images and producing images.

Which is newer?

GPT-5.4 Image 2 Apr 21, 2026; Grok Imagine Image Jan 28, 2026.

Which can edit an existing image?

Takes a reference image as input: GPT-5.4 Image 2 yes; Grok Imagine Image yes.

Can I run any of these on my own hardware?

No open weights. Both are available only through APIs and apps.

04 — Keep comparing

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