On 2026-02-08, we confirmed that Gemini per-model daily limits were a production risk. Observed caps were 50/day for gemini-2.5-pro-preview-tts and 100/day for gemini-2.5-flash-preview-tts, both of which were exceeded during testing.
We also observed gemini-3-pro-preview returning RESOURCE_EXHAUSTED with per-model daily limit effectively 0 for our current project quota path. We mitigated by moving interview generation to gemini-3-flash-preview, and keeping OpenAI TTS as the primary provider for coach audio reliability
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