Gemini 2.5 Flash Preview TTS vs Gemini 3.8 Flash TTS: API price and specs

Gemini 2.5 Flash Preview TTS is 94% cheaper than Gemini 3.8 Flash TTS on output price.

Gemini 2.5 Flash Preview TTS is 74% cheaper than Gemini 3.8 Flash TTS on a 1M-in / 200k-out workload.

Gemini 2.5 Flash Preview TTS has a 12700% larger context than Gemini 3.8 Flash TTS.

Field	Gemini 2.5 Flash Preview TTS	Gemini 3.8 Flash TTS
Lowest input, per 1M	$0.50	$0.50
Median input, per 1M	$0.50	$0.50
Lowest output, per 1M	$0.50	$9.00 +1700%
Median output, per 1M	$5.25	$9.00 +71.4%
Lowest unit price	—	—
Cost of 1M in + 200k out	$0.60	$2.30 +283.3%
Context	1M	8K +99.2%
Max output	66K	16K +75%
Providers	3 +62.5%	8
Regions	—	—
Accepts	text	text
Returns	audio, text	audio, speech
Type	Text to speech	Text to speech
Free option	no	no
Cheapest provider	abacus	302ai

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

aihubmix, google

Frequently asked questions

Which is cheaper, Gemini 2.5 Flash Preview TTS or Gemini 3.8 Flash TTS?

Gemini 2.5 Flash Preview TTS is 94% cheaper than Gemini 3.8 Flash TTS on output price. Gemini 2.5 Flash Preview TTS is 74% cheaper than Gemini 3.8 Flash TTS on a 1M-in / 200k-out workload.

Which has the larger context, Gemini 2.5 Flash Preview TTS or Gemini 3.8 Flash TTS?

Gemini 2.5 Flash Preview TTS: 1M tokens; Gemini 3.8 Flash TTS: 8K tokens.

Where can I use both Gemini 2.5 Flash Preview TTS and Gemini 3.8 Flash TTS?

aihubmix, google