StepFun: Step 5 Preview

Other

Multimodal

Paid

Step 5 Preview is StepFun's flagship model for agentic work, built on a sparse Mixture-of-Experts architecture (27B active / 600B total parameters). It performs strongly in software engineering and professional...

Parameters

Context Window

1,000,000

tokens

Input Price

per 1M tokens

Output Price

$2.7

per 1M tokens

Capabilities

Model capabilities and supported modalities

Performance

Reasoning

Math

Coding

Knowledge

Modalities

Input Modalities

text,image,video

Output Modalities

text

LLM Price Calculator

Calculate the cost of using this model

Input Tokens (0.00000100/token)$0.001500

Output Tokens (0.00000270/token)$0.008100

Common Scenarios:

Input Cost:$0.001500

Output Cost:$0.008100

Total Cost:$0.009600

Estimated usage: 4,500 tokens

Monthly Cost Estimator

Based on different usage levels

Light Usage

$0.0370

~10 requests

Moderate Usage

$0.3700

~100 requests

Heavy Usage

$3.7000

~1000 requests

Enterprise

$37.0000

~10,000 requests

Note: Estimates based on current token count settings per request.

Last Updated: 2026/11/13