Google just dropped a new image generation model called Gemini 3.1 Flash Lite Image, which someone internally nicknamed Nano Banana 2 Lite, and the whole pitch is speed and cost over perfection. It takes roughly four seconds from text prompt to image in its default mode, which is fast compared to the heavier models in the Gemini family. It sits in the same product line as Google's more capable image tools but is designed specifically for quick iteration and early stage ideation.
Google is upfront about the tradeoff. Small text inside images gets mangled, infographics tend to hallucinate data points, and if you need a character to look consistent across multiple generations, you're going to have a bad time. The Elo scores from Arena.ai look encouraging on the surface, but as the article points out, vibes based rankings don't always catch the subtle stuff that makes AI images look embarrassing in a professional context.
For a product manager mocking up a concept, a marketer generating quick visual options before briefing a designer, or a developer prototyping a feature that eventually needs real assets, four seconds and cheap is the right answer. Most early concept images don't need to be perfect, just good enough to get the conversation started.