Interactions api, slow + 500 errors on polling

Gemini API
1

experiencing a high volume of 500 errors since 2026-03-30T09:13:40 calling /v1beta/interactions/{interaction}, and very slow interactions on deep-research-pro-preview-12-2025 for the last 12 hours.

{“error”:{“message”:“Internal server error”,“code”:“api_error”}}

2

I’ve had problems since Friday, both 500 and 503 errors from 4K, but 2K was working as a fallback –until this morning. No idea what’s happening.

Thread from Friday