---
name: Stepfun-Ai Gelab Zero 4B Preview
slug: stepfun-ai-gelab-zero-4b
type: Multimodal
providers:
  - qiniu-ai
description: 'StepFun flash model for efficient multimodal reasoning, coding, and tool use'
tags:
  - tool-use
  - multimodal
is_open_source: false
context_window: 8192
max_output: 4096
release_date: '2025-12-23'
capabilities:
  audio: false
  vision: true
  tool_use: true
  citations: false
  reasoning: false
---
Stepfun-Ai Gelab Zero 4B Preview is a Multimodal model.
StepFun flash model for efficient multimodal reasoning, coding, and tool use