# Stepfun_ai

## Models

- [Step 5 Preview](/qc69jvmznzxy/step-5-preview.md) — Preview of StepFun's Step 5: ~600B-total / 27B-active multimodal MoE (text and image in, text out) with 1M context, reasoning and tool calling, served in NVFP4.
- [Step 5 Preview](/qc69jvmznzxy/step-5-preview.md) — Preview of StepFun's Step 5: ~600B-total / 27B-active multimodal MoE (text and image in, text out) with 1M context, reasoning and tool calling, served in NVFP4.