# Gemini 2.5 Flash Preview TTS

As of 18 September 2026, the parameters below were observed for Gemini 2.5 Flash Preview TTS on Google's own published price list.

Source: Google
Canonical page: https://bertrande.com/en/ai/google/gemini-2-5-flash-preview-tts/
Machine formats: https://bertrande.com/en/ai/google/gemini-2-5-flash-preview-tts/data.json | https://bertrande.com/en/ai/google/gemini-2-5-flash-preview-tts/data.csv
License: CC-BY-4.0, reuse with attribution and a link.

## Parameters

| Parameter | Value | Unit | Observed | Source level | Proof (SHA-256) |
|---|---|---|---|---|---|
| Input price (batch tier; text) | $0.250 | USD per 1M tokens | 2026-09-18 | L3 | `7ddd8ebc405852aa` |
| Input price (text) | $0.500 | USD per 1M tokens | 2026-09-18 | L3 | `7ddd8ebc405852aa` |
| Output price (audio) | $10.00 | USD per 1M tokens | 2026-09-18 | L3 | `7ddd8ebc405852aa` |
| Output price (batch tier; audio) | $5.00 | USD per 1M tokens | 2026-09-18 | L3 | `7ddd8ebc405852aa` |

## How this is verified

Every value above was read from the source URL shown on the canonical page, on the date given. We store a SHA-256 fingerprint of the source content at that moment, which is what lets us show later what the source said that day.

No value here was produced, estimated or completed by a language model. Where we have no verified figure, the row is absent rather than filled in.

Method: https://bertrande.com/en/methodology/
Report an error: https://bertrande.com/en/corrections/