RESOLVED: **Summary:** Mitigated intermittent elevated error rates with Gemini 3.1 Pro models on Gemini Web and Gemini App. **Description:** Between 6:00 PDT and 13:22 PDT on 11 September 2026, a subset of Gemini users may have experienced elevated error rates with Gemini 3.1 Pro models on Gemini Web and Gemini App. From preliminary analysis, the issue was triggered by a recent rollout. Our engineers identified the cause and mitigated it with a code change. We thank you for your patience while w

Timeline

1. 11 Sep · 20:45 UTC 🟡 Resolved atom

   Incident began at 2026-09-11 13:00 and ended at 2026-09-11 20:22 (times are in Coordinated Universal Time (UTC)).
   
   Summary:
   
   Mitigated intermittent elevated error rates with Gemini 3.1 Pro models on Gemini Web and Gemini App.
   
   Description:
   
   Between 6:00 PDT and 13:22 PDT on 11 September 2026, a subset of Gemini users may have experienced elevated error rates with Gemini 3.1 Pro models on Gemini Web and Gemini App.
   
   From preliminary analysis, the issue was triggered by a recent rollout. Our engineers identified the cause and mitigated it with a code change.
   
   We thank you for your patience while we worked on resolving the issue.
   
   Symptoms:
   
   Customers may have encountered intermittent errors when using Gemini 3.1 Pro models on Gemini Web and Gemini App.
   
   Affected products: Gemini

2. 11 Sep · 20:45 UTC 🟡 Monitoring atom

   Incident began at 2026-09-11 13:00 (times are in Coordinated Universal Time (UTC)).
   
   Summary:
   
   Mitigated intermittent elevated error rates with Gemini 3.1 Pro models on Gemini Web and Gemini App.
   
   Description:
   
   Between 6:00 PDT and 13:22 PDT on 11 September 2026, a subset of Gemini users may have experienced elevated error rates with Gemini 3.1 Pro models on Gemini Web and Gemini App.
   
   From preliminary analysis, the issue was triggered by a recent rollout. Our engineers identified the cause and mitigated it with a code change.
   
   We thank you for your patience while we worked on resolving the issue.
   
   Symptoms:
   
   Customers may have encountered intermittent errors when using Gemini 3.1 Pro models on Gemini Web and Gemini App.
   
   Affected products: Gemini