Imagen 4 Fast vs Nano Banana 2
Google's budget model at 5 credits vs Google's premium at 15 credits. Same provider, different tiers.
Imagen 4 Fast and Nano Banana 2 are both made by Google, but they serve different purposes. Google's fast image model with high-quality generation at ultra-low cost. Meanwhile, google's latest image model with exceptional text rendering and multi-image compositing. Choosing between them comes down to what you prioritize: Fast iteration, or Text rendering.
At 5 credits, Imagen 4 Fast costs 10 credits less than Nano Banana 2 (15 credits). The question is whether the extra cost of Nano Banana 2 translates into meaningfully better results for your use case. For fast iteration, budget-friendly generation, quick high-quality drafts, Imagen 4 Fast is hard to beat at its price point. But if you need text rendering, character consistency, multi-image compositing, Nano Banana 2 may justify the premium.
Updated April 2026
Nano Banana 2 costs 10 credits more per generation — that adds up fast. Start with Imagen 4 Fast for most work. It handles fast iteration, budget-friendly generation, quick high-quality drafts well. Save Nano Banana 2 for when you specifically need text rendering and the quality difference matters.
Imagen 4 Fast vs Nano Banana 2: How They Compare
 Imagen 4 Fast | Nano Banana 2 | |
|---|---|---|
| Provider | ||
| Released | Mar 2026 | Feb 2026 |
| Cost | 5 | 80.5K/151K/252K/404K |
| Speed | Fastest | Fast |
| Reference images | Up to 14 | |
| Editing |
Imagen 4 Fast vs Nano Banana 2: Cost Comparison
Imagen 4 Fast is 67% cheaper than Nano Banana 2. Here's how credits add up at scale.
| Volume | Imagen 4 Fast | Nano Banana 2 |
|---|---|---|
| 10 images | 50 | 150 |
| 50 images | 250 | 750 |
| 100 images | 500 | 1,500 |
Strengths & Weaknesses
Imagen 4 Fast
- + More affordable (5 vs 15 credits)
- + Faster generation speed
- + Fast iteration
- + Ultra-low cost (5 credits)
- + Sub-second generation speed
- - No built-in editing
- - No reference image support
Nano Banana 2
- + Text rendering
- + Supports 14 reference images
- + Built-in image editing
- + More resolution options
- + Up to 14 reference images
- - More expensive (15 vs 5 credits)
Imagen 4 Fast vs Nano Banana 2: Which to Pick?
On a tight budget
At 5 credits per image, Imagen 4 Fast gives you more generations for your plan. Good enough quality for most everyday use.
Maximum quality matters
Nano Banana 2 is worth the extra credits when the output needs to be perfect — portfolio pieces, client work, or final deliverables.
Character or style consistency
Nano Banana 2 supports 14 reference images to keep subjects, styles, and characters consistent across generations.
Rapid iteration and testing
Imagen 4 Fast's fastest generation means you can test more prompts in less time. Great for exploration.
Editing existing images
Nano Banana 2's built-in editing lets you refine and modify images with prompt-driven changes instead of starting from scratch.
Imagen 4 Fast vs Nano Banana 2: FAQ
Try Imagen 4 Fast & Nano Banana 2
Compare Imagen 4 Fast, Nano Banana 2, and 15+ AI image models side by side. Switch models with one click, same credits.
Start Generating Images
