Nano Banana 2 (Gemini 3.1 Flash Image) vs Runway Gen-3

Which one should you pick? Here's the full breakdown.

Our Pick

Nano Banana 2 (Gemini 3.1 Flash Image)

A
8.9/10

Google's Gemini 3.1 Flash Image model -- the best-in-class text-in-image renderer, now the default across the Gemini app

Runway Gen-3

B
7.8/10

The most capable AI video generator available -- text-to-video that actually looks professional

CategoryNano Banana 2 (Gemini 3.1 Flash Image)Runway Gen-3
Ease of Use9.57.0
Output Quality9.59.0
Value8.56.0
Features8.09.0
Overall8.97.8

Pricing Comparison

FeatureNano Banana 2 (Gemini 3.1 Flash Image)Runway Gen-3
Free TierYesYes
Starting Price$0$0

Which Should You Pick?

Pick Nano Banana 2 (Gemini 3.1 Flash Image) if...

  • Easier to use (9.5 vs 7)
  • Better value for money (8.5/10)

Designers, marketers, and content creators who need readable text in images (social posts, ad creative, book covers, infographics, event flyers) and who are already using or willing to pay for Gemini. If any part of your commercial design work requires typography to look right, Nano Banana 2 is the 2026 leader.

Visit Nano Banana 2 (Gemini 3.1 Flash Image)

Pick Runway Gen-3 if...

  • More features (9 vs 8)

Video creators, filmmakers, and agencies who need the best possible AI video quality and have budget for credits. The creative suite tools (inpainting, motion brush) are best-in-class.

Visit Runway Gen-3

Our Verdict

Nano Banana 2 (Gemini 3.1 Flash Image) is the clear winner here with 8.9/10 vs 7.8/10. Runway Gen-3 isn't bad, but Nano Banana 2 (Gemini 3.1 Flash Image) outperforms it across the board. Pick Runway Gen-3 only if video creators, filmmakers, and agencies who need the best possible ai video quality and have budget for credits.