---
name: Stepfun-Ai Step-3.5-Flash
slug: stepfun-ai-step-3-5-flash
type: LLM
providers:
  - siliconflow
  - siliconflow-cn
description: 'StepFun flash model for efficient multimodal reasoning, coding, and tool use'
tags:
  - reasoning
  - llm
  - step
  - tool-use
is_open_source: false
context_window: 262000
max_output: 262000
pricing:
  - image: 0
    input: 0.1
    output: 0.3
    provider: siliconflow-cn
  - image: 0
    input: 0.1
    output: 0.3
    provider: siliconflow
release_date: '2026-02-11'
capabilities:
  audio: false
  vision: false
  tool_use: true
  citations: false
  reasoning: true
---
Stepfun-Ai Step-3.5-Flash is a LLM model.
StepFun flash model for efficient multimodal reasoning, coding, and tool use