AI Rate Card

Base model

StepAudio 3 TTS

from $14.00 / 1M chars at 2 providers

stepfun/stepaudio-3-tts · 2 providers · Text to speech ·

All StepFun models at every provider

Found 2

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The offers of the current filter, current prices in USD.

Free for everyone, no sign-in needed: the whole catalog in one file, up to 20 downloads an hour (60 with a free account).

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The same as an API for bots (format=json|csv|yaml, limit, offset):

https://airatecard.com/export?format=json&model=stepfun%2Fstepaudio-3-tts

API parameters and a form

ModelVariantIconProviderInput, $Output, $Your cost/mo, $Subscription, $/moRegionContextMax outputAcceptsLast checkedRecommendActions
= StepAudio 3 TTS×
Provider
Pricing
Region
Input
Status
StepAudio 3 TTSStepAudio 3 TTSstepfun-ai ↗$14.00 / 1M chars————4 Nov
12:00
StepAudio 3 TTSStepAudio 3 TTSstepfun ↗$37.53 / 1M chars————4 Nov
12:26
not confirmed lately

Ranges in one field: "from-to" - "0.5-3", "-3" (up to), "128k-" (from); a colon works too. Several ticked values of one column are ORed, columns are ANDed.

Market price history, $ / 1M chars

Market price history, $ / 1M charsminimummedian$15.40$02026-09-282026-11-04$14.00$14.00

Latest: minimum $14.00, median $14.00 (Nov 4, 2026)

The STEPAUDIO family - base models: 10
About the model: cost of your workload, questions, comparisons, citation

Frequently asked questions

How much does StepAudio 3 TTS API cost?

From $14.00 per 1M chars, at stepfun-ai.

Which provider offers StepAudio 3 TTS cheapest?

stepfun-ai offers the lowest price, $14.00 per 1M chars, among 2 providers.

Compare

vs Step TTS 2 vs step-tts-mini vs StepAudio 2.5 TTS

Source: AI Rate Card, https://airatecard.com/en/model/stepfun/stepaudio-3-tts, prices checked 2026-11-04