> ## Documentation Index
> Fetch the complete documentation index at: https://docs.apiyi.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Nano Banana Pro hitting 503 on Google's side · compute shortage

> gemini-3-pro-image (Nano Banana Pro) is frequently returning 503 / high-demand errors due to a compute shortage on Google's side. The sibling gemini-3.1-flash-image (Nano Banana 2) is currently more stable and more economical; judge output quality for your own use case.

**2026/6/23 18:55 (UTC+8)** · Model Status · Google

⚠️ **`gemini-3-pro-image` (Nano Banana Pro) hitting frequent 503 · compute shortage on Google's side**

Due to a compute shortage on Google's side, `gemini-3-pro-image` is frequently returning high-demand errors; the root cause is upstream on the official side. A typical error message:

```
This model is currently experiencing high demand. Spikes in demand are usually
temporary. Please try again later. (request id: 2026062318541464984849906525550)
upstream_error 429
```

Sibling models available (pick whichever fits, judge quality yourself):

* `gemini-3-pro-image` (Nano Banana Pro): hit by the compute shortage, frequently returning 503 / high-demand errors
* `gemini-3.1-flash-image` (Nano Banana 2): currently more stable and more economical

Thanks for your patience — we keep watching for official recovery and will sync progress.

***

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