SiliconFlowstepfun-ai/Step-3.5-Flash model ID, context window & pricing
step
Quick facts
Model ID stepfun-ai/Step-3.5-Flash
Source SiliconFlow
Context Window 262000
Pricing $0.10 input / $0.30 output per 1M tokens
Capabilities tool calling, reasoning, structured output, temperature control
Model overview
stepfun-ai/Step-3.5-Flash is an AI model from SiliconFlow with 262000 token context window and text input support.
Published pricing is $0.10 input and $0.30 output per 1M tokens.
- Workloads that use text inputs with text outputs.
- Agent and tool workflows that need function calling.
- Reasoning-heavy prompts where stepwise problem solving matters.
Model ID stepfun-ai/Step-3.5-Flash
Provider SiliconFlow
Family step
Status -
Knowledge Cutoff -
Release Date 2026-02-11
Input Modalities text
Output Modalities text
Context Window 262000
Input Limit -
Output Limit 262000
Tool Calling Yes
Reasoning Yes
Structured Output Yes
Temperature Control Yes
Open Weights No
Input Cost / 1M tokens $0.10
Output Cost / 1M tokens $0.30
Reasoning Cost / 1M tokens -
Cache Read Cost / 1M tokens -
Cache Write Cost / 1M tokens -