Model detail
step-3.5-flash
StepFun step-3.5-flash reasoning model, activated after Phase 3.6 source review.
general_llmreasoninglong_contextchatsoftware_engineering_agententerprise_api
AI Model Radar / AI模型雷达
step-3.5-flash
Model detail, capability tags, source, OpenRouter state, and public reputation.
Source
stepfun-ai/Step-3.5-Flash Hugging Face model card
P0 · official · high
Current version
step-3.5-flash
CompanyStepFun
ReleaseNot disclosed
Context256000
Parameters199.4B
| Input modalities | text / code |
|---|---|
| Output modalities | text / code |
| Tool use / Function calling | No reliable public source / No reliable public source |
| Structured output / Reasoning | No reliable public source / Yes |
| Vision / Audio / Video | No reliable public source / No reliable public source / No reliable public source |
| Open weights / License | No reliable public source / Not applicable |
| OpenRouter | No reliable public source |
| Community reputation | 1 public signals |
Versions