My n8n HTTP node sends a simple image generation prompt to Gemini 3.1 but 50% of the time it fails with this error:
Gemini API error: 503 - “{\n “error”: {\n “code”: 503,\n “message”: “This model is currently experiencing high demand. Spikes in demand are usually temporary. Please try again later.”,\n “status”: “UNAVAILABLE”\n }\n}\n”
I checked availability history and the service seems to be working fine.
Occasionally I also get: Gemini API error: timeout of 600000ms exceeded
Out of 6 calls, only 3 max succeed. It also takes over 30 minutes to run the 6 rows.
Any suggestions for troubleshooting? What should I look into? TIA