AI Rate Card

Gemini 3.1 Flash TTS Preview vs Gemini 3.8 Flash TTS: API price and specs

Gemini 3.8 Flash TTS is 50% cheaper than Gemini 3.1 Flash TTS Preview on input price.

Gemini 3.8 Flash TTS is 55% cheaper than Gemini 3.1 Flash TTS Preview on output price.

Gemini 3.8 Flash TTS is 54% cheaper than Gemini 3.1 Flash TTS Preview on a 1M-in / 200k-out workload.

FieldGemini 3.1 Flash TTS PreviewGemini 3.8 Flash TTS
Lowest input, per 1M$1.00 +100%$0.50
Median input, per 1M$1.00 +100%$0.50
Lowest output, per 1M$20.00 +122.2%$9.00
Median output, per 1M$20.00 +122.2%$9.00
Lowest unit price——
Cost of 1M in + 200k out$5.00 +117.4%$2.30
Context8K8K
Max output16K16K
Providers4 +50%8
Regions——
Acceptstexttext
Returnsaudio, speechaudio, speech
TypeText to speechText to speech
Free optionnono
Cheapest providergoogle302ai

Your own workload: how many tokens the model gets (input) and gives back (output) - for example, in a month. The "Cost" row of the table above is recalculated for these numbers, for each model.

Computed from current offers each time the page opens; the best value of a row is bold, the percent is how far behind the best.

Providers selling both

google, impossibl, ofox, zenmux

Frequently asked questions

Which is cheaper, Gemini 3.1 Flash TTS Preview or Gemini 3.8 Flash TTS?

Gemini 3.8 Flash TTS is 50% cheaper than Gemini 3.1 Flash TTS Preview on input price. Gemini 3.8 Flash TTS is 55% cheaper than Gemini 3.1 Flash TTS Preview on output price. Gemini 3.8 Flash TTS is 54% cheaper than Gemini 3.1 Flash TTS Preview on a 1M-in / 200k-out workload.

Which has the larger context, Gemini 3.1 Flash TTS Preview or Gemini 3.8 Flash TTS?

Gemini 3.1 Flash TTS Preview: 8K tokens; Gemini 3.8 Flash TTS: 8K tokens.

Where can I use both Gemini 3.1 Flash TTS Preview and Gemini 3.8 Flash TTS?

google, impossibl, ofox, zenmux