Error 429 fixes and recommendations for Gemini 3 Pro Image Preview Model

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We are using gemini-3-pro-image-preview for a production project (target: 20 RPM). We frequently hit 429 Resource Exhausted errors, but Provisioned Throughput is currently too expensive for our scale.

  • What is the ETA for this model to move from Preview to GA (Stable)?

  • Besides Provisioned Throughput, what is the best way to stabilize 20 RPM ?

  • Will the stable version be launched in all regions simultaneously?

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For Gemini 3 Pro Image Preview, hitting 429 errors at 20 RPM is expected under current Preview limits. Provisioned Throughput is the main way to stabilize higher request rates. GA (stable) ETA and regional rollout details haven’t been announced. To reduce 429s without extra cost, consider request throttling, batching, or caching responses until GA.