Model Comparison

vs

step3

Jan 13, 2026

Models

step3

Pricing

Input

0.57

Output

1.42

Metadata

Create on

Jul 28, 2025

License

APACHE-2.0

Provider

StepFun

HuggingFace

Specification

State

Available

Architecture

Calibrated

Yes

No

Mixture of Experts

Yes

Yes

Total Parameters

321B

Activated Parameters

38B

Reasoning

Yes

No

Precision

FP8

Context length

66K

Max Tokens

66K

Supported Functionality

Serverless

Supported

Supported

Serverless LoRA

Supported

Not supported

Fine-tuning

Supported

Not supported

Embeddings

Supported

Supported

Rerankers

Supported

Not supported

Support image input

Not supported

Not supported

JSON Mode

Supported

Supported

Structured Outputs

Supported

Not supported

Tools

Supported

Supported

Fim Completion

Supported

Not supported

Chat Prefix Completion

Supported

Not supported

Ready to accelerate your AI development?

Ready to accelerate your AI development?

Ready to accelerate your AI development?