> ## 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.

# Gemini image models under heavy official load · 503 possible even with quota

> gemini-3-pro-image-preview and gemini-3.1-flash-image-preview are under a demand spike on Google's official side — requests may return 503 upstream_error (high demand notice) even with sufficient quota. This is a temporary upstream spike; please retry later.

**2026/6/5 17:01 (UTC+8)** · Model Status · Google

⚠️ **`gemini-3-pro-image-preview` / `gemini-3.1-flash-image-preview` under heavy official load · 503 possible even with quota** —— Google's official side is currently in a demand spike under heavy load: even with sufficient quota, requests may return `503 upstream_error` (`This model is currently experiencing high demand. Spikes in demand are usually temporary.`). This is a temporary upstream spike — please retry later.

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