Imagen 4 Fast
Nano Banana 2 (Gemini 3.1 Flash Image)
Decision Recommendation
⚖️ Editorial Verdict: This comparison represents a classic price-to-performance trade-off. Imagen 4 Fast is the highly cost-efficient option, being 3.4x cheaper per generation. However, Nano Banana 2 (Gemini 3.1 Flash Image) operates at a faster speed tier (fast). Choose Imagen 4 Fast for high-volume batches, and Nano Banana 2 (Gemini 3.1 Flash Image) for interactive, real-time application pipelines.
Imagen 4 Fast
Pricing & Speed
Model Strengths
Nano Banana 2 (Gemini 3.1 Flash Image)
Pricing & Speed
Model Strengths
Frequently Asked Questions
Imagen 4 Fast is cheaper, costing $0.0200 per image generation compared to Nano Banana 2 (Gemini 3.1 Flash Image) at $0.0670 per image.
Nano Banana 2 (Gemini 3.1 Flash Image) is faster, operating in the fast speed tier compared to Imagen 4 Fast which is in the real-time speed tier.
Imagen 4 Fast specializes in: real time, high volume. Nano Banana 2 (Gemini 3.1 Flash Image) specializes in: in context-editing, character consistency, text rendering, typography, realism, prompt adherence.
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