SiliconFlow (China)

stepfun-ai/Step-3.5-Flash

Name: stepfun-ai/Step-3.5-Flash
Brand: SiliconFlow (China)

Canonical ID: siliconflow-cn/stepfun-ai/Step-3.5-Flash

More SiliconFlow (China) models More step family models

StepFun flash model for efficient multimodal reasoning, coding, and tool use

Reasoning: Yes Tool use: Yes

Overview

text

Provider: SiliconFlow (China)
Family: step
Release date: 2026-02-11
Last updated: 2026-02-11
Input modalities: text
Output modalities: text

Pricing and Limits

Token pricing

Input: $0.1/1M
Output: $0.3/1M
Cached input: N/A

Context and output

Context window: 262,000
Max output tokens: 262,000
Qualified ID: siliconflow-cn/stepfun-ai/Step-3.5-Flash

Model Summary

stepfun-ai/Step-3.5-Flash is a model listing in the SiliconFlow (China) provider catalog. It is categorized under the step family.

The model supports text modalities across input/output paths. Reported context capacity is 262,000. Pricing is listed at $0.1/1M input and $0.3/1M output.

Same Family: step

Comparable models in the same family across providers.

Browse family

Model	Provider	Context	Input	Output	Flags
StepAudio 2.5 ASR stepfun/stepaudio-2.5-asr	StepFun	0	N/A	N/A
StepAudio 2.5 ASR stepfun-ai/stepaudio-2.5-asr	StepFun (Global)	0	N/A	N/A
StepAudio 2.5 TTS stepfun/stepaudio-2.5-tts	StepFun	0	N/A	N/A
StepAudio 2.5 TTS stepfun-ai/stepaudio-2.5-tts	StepFun (Global)	0	N/A	N/A
StepFun: Step 5 Preview (free) kilo/stepfun/step-5-preview-free	Kilo Gateway	1,000,000	$0/1M	$0/1M	Reasoning Tools
Step TTS 2 stepfun/step-tts-2	StepFun	0	N/A	N/A
Step TTS 2 stepfun-ai/step-tts-2	StepFun (Global)	0	N/A	N/A

stepfun-ai/Step-3.5-Flash

Overview

Pricing and Limits

Token pricing

Context and output

Model Summary

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