Nano Banana 2.1 batch: $0.0168 per 1K image, 100,000 images cost
Google's batch price for Nano Banana 2.1 is $0.0168 per 1K, $0.0252 per 2K and $0.0567 per 4K image: half of Standard. What 100,000 images cost in each tier.
Google bills Nano Banana 2.1 through its Batch API at exactly half the Standard rate: $0.0168 per 1K image, $0.0252 per 2K and $0.0567 per 4K. For 100,000 images at 1K that is $1,680 in batch against $3,360 on Standard, before input tokens and any search grounding.
The two price lines
Batch image output is $15 per 1M tokens against $30 on Standard, with the same token counts per size (1,120, 1,680 and 3,780). Batch input is $0.75 per 1M against $1.50, and batch text and thinking output is $3.75 against $7.50.
| Size | Standard each | Batch each | 100,000 Standard | 100,000 Batch |
|---|---|---|---|---|
| 1K | $0.0336 | $0.0168 | $3,360 | $1,680 |
| 2K | $0.0504 | $0.0252 | $5,040 | $2,520 |
| 4K | $0.113 | $0.0567 | $11,300 | $5,670 |
What you give up
Batch is a separate interface, not a flag on the normal call, and the results are not interactive. Google's pricing page lists the price only; read the Batch API guide for turnaround and limits before you promise a delivery time. Do not put anything into a batch that a customer is waiting on.
When batch fits
- Catalogue back-fills where nobody watches a spinner.
- Re-rendering a whole library after a prompt or brand change.
- Overnight variant sheets for ad testing.
What Sume offers instead
Sume has no half-price batch tier for images: every POST /v1/images call is billed at the endpoint price, and a failed generation is not charged. For volume, Sume's Format API has bulk runs (POST /v1/formats/:handle/:slug/bulk-runs), which queue many runs of one recipe at normal prices. If half-price Google batch is what your volume needs, call Google's Batch API directly.
Sources
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Written by Sume