nano-banana
Capability: 1024² · photorealism · studio lighting · material accuracy
Pricing: per image, photoreal tier (live rate)
Nano Banana is Google’s entry photorealistic image generator. Reach
for it when the brief reads “studio lighting, glass surfaces,
anatomical correctness” and the Seedream family’s illustrative
aesthetic would fight your direction. For higher fidelity with extended
post-processing, see Nano Banana Pro;
for the latest iteration with improved text rendering, see
Nano Banana 2.
Request
Body parameters
| Field | Type | Required | Default | Notes |
|---|---|---|---|---|
model | string | yes | — | nano-banana |
prompt | string | yes | — | English-recommended; CJK supported but tuned for English. |
size | string | no | 1024x1024 | Supported: 1024x1024, 1024x1536, 1536x1024. |
n | integer | no | 1 | 1–2 images. |
seed | integer | no | — | Reproducibility supported. |
aspect_ratio | string | no | — | Alternate to size: 1:1 / 9:16 / 16:9 / 4:3 / 3:4. |
Response
Code examples
Errors
| Code | Trigger | Billed? |
|---|---|---|
| 400 / 401 / 402 / 403 | Standard | No |
| 451 | Prompt blocked by upstream safety | No |
| 5xx | Upstream issue | No (auto-retry) |
When to use
- Photorealistic stills where material accuracy matters.
- Studio-lit product / food / lifestyle imagery.
- For higher-fidelity post-processing, see Nano Banana Pro.
- For sharper text rendering, see Nano Banana 2.
- For aesthetic / illustrative output, see Seedream V4.
Limits
| Limit | Value |
|---|---|
| Max output resolution | 1536×1536 |
Max images per call (n) | 2 |
| Supports init image (img2img) | No |
| Supports negative prompt | No |
| Supports seed reproduction | Yes |
| Sync? | Yes (≤30s typical) |
| Avg latency for 1024² | 6-10s |