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  1. Home/
  2. Compare/
  3. FLUX 2 Flex vs Grok Imagine Image
Updated Dec 2025

FLUX 2 Flex vs Grok Imagine Image

Grok Imagine Image is the newer model, released after FLUX 2 Flex.

Hyperrealistic Portrait

One prompt, one photorealistic portrait. Skin, eyes, light.

Loading the build
FLUX 2 Flex
Loading the build
Grok Imagine Image

Which answer wins?

Price and specs

FLUX 2 Flex and Grok Imagine Image compared across 17 shared prompts
SpecFLUX 2 FlexGrok Imagine Image
ReleasedNov 2025Dec 2025

Common questions

What is the difference between FLUX 2 Flex and Grok Imagine Image?

FLUX 2 Flex is developed by Black Forest Labs while Grok Imagine Image is developed by xAI. You can compare their actual outputs across 17 challenges on Rival to see how they differ in practice.

Which is better, FLUX 2 Flex or Grok Imagine Image?

It depends on your use case. FLUX 2 Flex and Grok Imagine Image each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 17 challenges so you can judge which fits your needs best.

How can I compare FLUX 2 Flex and Grok Imagine Image on Rival?

This page shows a side-by-side comparison of FLUX 2 Flex and Grok Imagine Image across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

More comparisons

Against the newest arrivals

  • FLUX 2 Flex vs Hy Image 3.5 PreviewLanded Oct 2026
  • Grok Imagine Image vs FLUX.3 ImageLanded Oct 2026
  • FLUX 2 Flex vs Nano Banana 2.1Landed Oct 2026
  • Grok Imagine Image vs Recraft V4.1 FlashLanded Sep 2026
  • FLUX 2 Flex vs GPT Image 2.5 SunburstLanded Sep 2026
  • Grok Imagine Image vs GPT Image 2.5 FlareLanded Sep 2026
  • FLUX 2 Flex vs Nano Banana 2 LiteLanded Jun 2026
  • Grok Imagine Image vs Riverflow V2.5 FastLanded Jun 2026

Same lab, same size, long tail

  • FLUX 2 Flex vs FLUX.3 ImageVersion compare
  • FLUX 2 Flex vs Recraft V4.1 FlashSame size
  • Grok Imagine Image vs Hy Image 3.5 PreviewSame size
  • Grok Imagine Image vs Nano Banana 2.1Same size
  • FLUX 2 Flex vs Recraft V4.1 ProSame size
  • FLUX 2 Flex vs Riverflow V2.5 FastSame size
  • FLUX 2 Flex vs Riverflow V2.5 ProSame size
  • Grok Imagine Image vs Stable Diffusion XLSame size

Model pages

  • FLUX 2 Flex17 outputs, specs and price
  • Grok Imagine Image17 outputs, specs and price
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Rival
How it worksPrivacyTerms
Explore all of Rival

Explore

  • Compare models
  • All models
  • Image comparison
  • Audio comparison
  • Image generation
  • Best AI for...
  • Arena
  • API pricing
  • Challenges

Discover

  • SubjectiveBench
  • Default Index
  • Research
  • Research downloads
  • Rival Kits
  • Find your AI taste
  • UI Glow-Up
  • VoiceLock
  • Cost Cutter
  • Agent skills
  • Benchmarks vs Vibes
  • Brief
  • Jailbreak
  • Model updates
  • Provider status
  • AI creators

Connect

  • Methodology
  • Advertise
  • Partnerships
  • Privacy policy
  • Terms
  • RSS feed