Base model

Step-3

Name: Step-3
Brand: StepFun
Availability: InStock

from $0.21 at 1 provider

stepfun/step-3 · 1 provider · Text models ·

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Found 1

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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-3

API parameters and a form

Model	Variant	Icon	Provider	Logo	Input, $	Output, $	Your cost/mo, $	Subscription, $/mo	Region	Context	Max output	Accepts	Last checked	Recommend	Actions
= Step-3×			Provider zenmux 1					Pricing pay per use 1	Region			Input image 1 text 1	Status not confirmed lately 1
Step-3 Step-3			zenmux ↗		$0.21	$0.57	—			66K	64K	multi: image, text	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.

Input price history, $/1M

Latest: minimum $0.21, median $0.21 (Oct 22, 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-3 API cost?

From $0.21 input and $0.57 output per 1M tokens, at zenmux.

Which provider offers Step-3 cheapest?

zenmux offers the lowest price, $0.21 per 1M tokens, among 1 provider.

What is the context window of Step-3?

66K tokens.

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