FLUX Kontext Max vs 
Riverflow V2.5 Pro
Riverflow V2.5 Pro is the newer model, released after FLUX Kontext Max.
Hyperrealistic Portrait
One prompt, one photorealistic portrait. Skin, eyes, light.
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Which answer wins?
Price and specs
| Spec | FLUX Kontext Max | Riverflow V2.5 Pro |
|---|---|---|
| Input price | — | Free |
| Output price | — | Free |
| Context window | — | 8K tokens |
| Free API (OpenRouter) | — | No |
| Released | Nov 2024 | Jun 2026 |
| At 10M a month | not listed | $0 |
Input tokens at list price. No caching, no batch discount.
Where to run it
FLUX Kontext Max
No hosts listed on OpenRouter.
Riverflow V2.5 Pro1 host
Per million tokens. Prices and uptime via OpenRouter, checked 7 Oct 2026.
Common questions
What is the difference between FLUX Kontext Max and Riverflow V2.5 Pro?
FLUX Kontext Max is developed by Black Forest Labs while Riverflow V2.5 Pro is developed by Sourceful. You can compare their actual outputs across 19 challenges on Rival to see how they differ in practice.
Which is better, FLUX Kontext Max or Riverflow V2.5 Pro?
It depends on your use case. FLUX Kontext Max and Riverflow V2.5 Pro each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 19 challenges so you can judge which fits your needs best.
How can I compare FLUX Kontext Max and Riverflow V2.5 Pro on Rival?
This page shows a side-by-side comparison of FLUX Kontext Max and Riverflow V2.5 Pro 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 Kontext Max vs Nano Banana 2.1Landed Oct 2026
- Riverflow V2.5 Pro vs Recraft V4.1 FlashLanded Sep 2026
- FLUX Kontext Max vs GPT Image 2.5 SunburstLanded Sep 2026
- Riverflow V2.5 Pro vs GPT Image 2.5 FlareLanded Sep 2026
- FLUX Kontext Max vs Nano Banana 2 LiteLanded Jun 2026
- Riverflow V2.5 Pro vs Riverflow V2.5 FastLanded Jun 2026
- FLUX Kontext Max vs Recraft V4.1Landed May 2026
- Riverflow V2.5 Pro vs Recraft V4.1 ProLanded May 2026
Same lab, same size, long tail
- FLUX Kontext Max vs Recraft V4.1 FlashSame size
- FLUX Kontext Max vs Riverflow V2.5 FastSame size
- Riverflow V2.5 Pro vs Nano Banana 2.1Same size
- Riverflow V2.5 Pro vs GPT Image 2.5 SunburstSame size
- Riverflow V2.5 Pro vs Nano Banana ProSame size
- Riverflow V2.5 Pro vs P-ImageSame size
- FLUX Kontext Max vs Luma PhotonSame size
- FLUX Kontext Max vs Luma Photon FlashSame size
