What are the RPD, RPM, and TPM limits for gemini-3.1-flash-tts-preview per tier?

Hi,

I’m planning to use the gemini-3.1-flash-tts-preview model for a project and before proceeding with a payment plan, I’d like to understand the rate limits across different tiers. The official docs at https://ai.google.dev/gemini-api/docs/rate-limits don’t publish specific RPD, RPM, and TPM values for TTS models — it only redirects to AI Studio.

Could anyone share: 1. RPD, RPM, TPM for gemini-3.1-flash-tts-preview across Free, Tier 1, Tier 2, and Tier 3?

I want to choose the right tier before upgrading. Any help appreciated!