# DSQ increase request: gemini-3.1-flash-image on Vertex AI (429 after 2 sequential requests)

**URL:** <https://discuss.ai.google.dev/t/dsq-increase-request-gemini-3-1-flash-image-on-vertex-ai-429-after-2-sequential-requests/173426>\
**Category:** Gemini API\
**Tags:** vertex-ai, gemini-3\
**Created:** [July 3, 2026, 11:08am UTC](https://discuss.ai.google.dev/t/dsq-increase-request-gemini-3-1-flash-image-on-vertex-ai-429-after-2-sequential-requests/173426 "2026-07-03T11:08:51Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![boom\_Jimmy](https://d1dlmcr85iqnpo.cloudfront.net/user_avatar/discuss.ai.google.dev/boom_jimmy/32/133507_2.png) [@boom\_Jimmy](https://discuss.ai.google.dev/u/boom_Jimmy)\
**Post date:** [July 3, 2026, 11:08am UTC](https://discuss.ai.google.dev/t/dsq-increase-request-gemini-3-1-flash-image-on-vertex-ai-429-after-2-sequential-requests/173426/1 "2026-07-03T11:08:52Z")

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**Project ID:** gen-lang-client-01730506..  
**Model:** gemini-3.1-flash-image  
**Endpoint:** global ([aiplatform.googleapis.com](http://aiplatform.googleapis.com))  
**Auth:** Vertex AI service account (Vertex mode, not AI Studio API key)  
**Billing:** Enabled

**Issue:**  
Sequential curl tests from our server (Hong Kong VPS) against Vertex AI:

- Request 1: HTTP 200 ✅ (image returned, trafficType: ON\_DEMAND)
- Request 2: HTTP 200 ✅ (~18s later)
- Request 3: HTTP 429 ❌ RESOURCE\_EXHAUSTED — “Resource has been exhausted (e.g. check quota).”
- Request 4: HTTP 429 ❌ (same error, 5s after request 3)

**Quota console:**  
Filter `gemini-3.1-flash-image` shows:

- `Generate content requests with image input per minute` = 34,000,000
- Current usage: ~144 (0%)
- Adjustable: No

Model docs say **Fixed quota: Not supported** for gemini-3.1-flash-image.

**Use case:**  
Image generation SaaS. Users generate 1–4 product images per session. We already use serial requests (MaxParallel=1) with delays, but new-project DSQ floor appears too low for production.

**Request:**

1. DSQ allocation increase for this project on gemini-3.1-flash-image (global)
2. Or guidance on minimum Provisioned Throughput (GSU) for ~4 images/minute sustained

Thank you!

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<div class="post-metadata">

**Author:** ![matstops](https://d1dlmcr85iqnpo.cloudfront.net/user_avatar/discuss.ai.google.dev/matstops/32/120396_2.png) [@matstops](https://discuss.ai.google.dev/u/matstops)\
**Post date:** [July 3, 2026, 11:35am UTC](https://discuss.ai.google.dev/t/dsq-increase-request-gemini-3-1-flash-image-on-vertex-ai-429-after-2-sequential-requests/173426/2 "2026-07-03T11:35:23Z")

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If I’m not mistaken, that’s 34M input tokens per minute, so it couldn’t have ended any other way than with a 429 error code. But I think it’s even worse than that – and it’s not the input tokens, but the requests, of which there can be a maximum of 100 per minute at Tier 1.

> [@boom\_Jimmy](#):
>
> - `Generate content requests with image input per minute` = 34,000,000

 ![obraz](https://d3qe71uytubmmx.cloudfront.net/original/3X/1/e/1e80c010b79cee5c1ca41b282559a1b5e5632832.png)

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**Author:** ![Pooja\_Kapse](https://d1dlmcr85iqnpo.cloudfront.net/user_avatar/discuss.ai.google.dev/pooja_kapse/32/24754_2.png) [@Pooja\_Kapse](https://discuss.ai.google.dev/u/Pooja_Kapse)\
**Post date:** [July 6, 2026, 10:21am UTC](https://discuss.ai.google.dev/t/dsq-increase-request-gemini-3-1-flash-image-on-vertex-ai-429-after-2-sequential-requests/173426/3 "2026-07-06T10:21:36Z")

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Hello @boom_Jimmy ,

For issues related to the Vertex API, please contact your sales representative if you have one. Otherwise, you can find more relevant assistance on the [Google Cloud Forum](https://discuss.google.dev/c/google-cloud/14).