Base model

step-1o-audio

Name: step-1o-audio
Brand: StepFun
Availability: InStock

from $3.57 at 2 providers

stepfun/step-1o-audio · 2 providers · Audio ·

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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%2Fstep-1o-audio

API parameters and a form

Model	Provider	Input, $	Output, $	Your cost/mo, $	Subscription, $/mo	Region	Context	Max output	Accepts	Last checked
= step-1o-audio×	Provider stepfun 1 stepfun-ai 1				Pricing pay per use 2	Region			Input	Status Active 2
step-1o-audio step-1o-audio	stepfun-ai ↗	$3.57	$8.57	—			—	—		4 Nov 12:00
step-1o-audio step-1o-audio	stepfun ↗	$3.75	$8.99	—			—	—		4 Nov 12:00

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.

Input price history, $/1M

Latest: minimum $3.57, median $3.66 (Nov 4, 2026)

The STEP family - base models: 24

About the model: cost of your workload, questions, comparisons, citation

Cost of my workload → in the Tools tab: every provider of this model, cheapest first

Frequently asked questions

How much does step-1o-audio API cost?

From $3.57 input and $8.57 output per 1M tokens, at stepfun-ai.

Which provider offers step-1o-audio cheapest?

stepfun-ai offers the lowest price, $3.57 per 1M tokens, among 2 providers.

Compare

vs step-audio-2 vs step-audio-r1.5 vs StepAudio 2.5 Chat

Source: AI Rate Card, https://airatecard.com/en/model/stepfun/step-1o-audio, prices checked 2026-11-04