Provider incident title: “Gemini 2.5 Flash API intermittent 503 errors and degraded performance”
Started
Wednesday, June 10, 2026
10:55 AM UTC
Duration
6h 20m
total
Resolved
05:15 PM UTC
Jun 10, 2026
Affected
Tickerr's independent monitoring detected service recovery. API checks returned successful responses.
Gemini 2.5 Flash API is returning intermittent 503 (overloaded) errors and degraded responses. Tickerr synthetic probes detected the first anomaly at 10:55 UTC with content errors, followed by the first hard 503 failure at 11:30 UTC. Over the following 5+ hours, 7 confirmed 503 failures and 5 content errors were recorded across latency and throughput checks. TTFT spiked to 2,000–3,300ms (normal baseline ~550ms). Gemini 2.5 Flash Lite also returned a 503 at 12:45 UTC. 22 users independently reported issues — 36% reporting complete downtime, 55% errors, 9% slowness — with 45% on Pro tier. Google Cloud confirmed network issues originating from Delhi, Chennai, and Mumbai at 01:13 UTC. The consumer website (gemini.google.com) remained responsive throughout, indicating this is an API-layer issue affecting developers and automated systems.
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This incident was automatically detected by Tickerr's HTTP monitoring probes. Tickerr checks Gemini every few minutes from multiple regions. An incident is opened after 3 consecutive failed probes to reduce false positives.
This incident lasted 6h 20m and affected gemini-2.5-flash, gemini-2.5-flash-lite.
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