**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.

**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: Gemini)