MODEL REFERENCE / stepfun-ai

stepfun-ai/Step-3.7-Flash

Production-grade vision-language MoE (~198B total / 11B active parameters) combining a 196B sparse language backbone with a 1.8B perception encoder, hybrid SWA/Global attention, and 3-way Multi-Token Prediction

Sparse MoE VLM with hybrid attention and 3-layer MTP speculative decoding

View on HuggingFace View on ModelScope

vLLMmoe198B / 11B262,144 ctxvLLM 0.23.0+multimodal

02 / Configure

Configure serving

Choose engine, hardware and deployment options. The command updates as you go.

03 / Understand

Technical notes

Model notes and examples