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Gemini 3 Pro Image costs $0.134 per image at 1K: $13.40 for 100 images and $134.00 for 1,000. With three attempts per image you keep, each usable image costs $0.402.
Google prices Gemini 3 Pro Image by output resolution, and the aspect ratio does not change the price: 1K ($0.134), 2K ($0.134), 4K ($0.240). The batch API, for work that does not need an instant result, is 50% cheaper.
What decides the bill is not the price per image but how many attempts it takes to get one you keep. At three attempts per keeper, 100 usable images a month cost $40.20. At the calculator’s default setting, the other image models listed here cost per image: GPT Image 1 mini ($0.011), Gemini 3.1 Flash Lite Image ($0.0336), FLUX1.1 Pro ($0.040), FLUX.1 Kontext Pro ($0.040), Grok Imagine Image 2.0 ($0.040), GPT Image 1 ($0.042), Gemini 3.1 Flash Image ($0.067). Prices are from the providers’ own price lists, checked on September 11, 2026. The calculator below opens with Gemini 3 Pro Image selected — set your own volume and attempts.
What GPT Image, Gemini and Nano Banana Really Cost
Monthly cost
60 images generated a month
Per generated image
$0.042
What the provider charges for one press of the button
Per image you keep
$0.126
Including the 3 attempts it takes
Spent on discarded attempts
$1.68
67% of the bill is images nobody uses — the number a price list never shows you
If you keep this up
| Model | Per image | Per month |
|---|---|---|
| GPT Image 1 mini | $0.011 | $0.66 |
| Grok Imagine Image | $0.020 | $1.20 |
| Gemini 3.1 Flash Lite Image | $0.034 | $2.02 |
| Gemini 2.5 Flash Image | $0.039 | $2.34 |
| FLUX1.1 [pro] | $0.040 | $2.40 |
| FLUX.1 Kontext [pro] | $0.040 | $2.40 |
| Grok Imagine Image 2.0 | $0.040 | $2.40 |
| GPT Image 1 | $0.042 | $2.52 |
| FLUX.1 Fill [pro] | $0.050 | $3.00 |
| Grok Imagine Image (quality) | $0.050 | $3.00 |
| FLUX1.1 [pro] Ultra | $0.060 | $3.60 |
| Gemini 3.1 Flash Image | $0.067 | $4.02 |
| FLUX.1 Kontext [max] | $0.080 | $4.80 |
| Gemini 3 Pro Image | $0.134 | $8.04 |
Every model priced on the same request. Where a provider does not publish your exact frame, the nearest one it does is used and the row says so. Cheapest first.
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List prices as of September 11, 2026. The last column assumes three generations for every image you keep.
| Setting | Per image | 100 images | 1,000 images | Per kept image |
|---|---|---|---|---|
| 1K | $0.134 | $13.40 | $134.00 | $0.402 |
| 2K | $0.134 | $13.40 | $134.00 | $0.402 |
| 4K | $0.240 | $24.00 | $240.00 | $0.720 |
Models