StepX Launches Step 5 Preview, Flagship Agent Model
Jieyue Xingchen has released Step 5 Preview, its flagship agent model, on Hugging Face. Featuring a sparse MoE architecture, it boasts 600 billion total parameters and 27 billion active parameters, supports context lengths up to 1 million tokens, and accepts text, image, and video inputs. The model can be deployed via an OpenAI-compatible API using vLLM or SGLang.
StepFun Launches Step 5 Preview, Its Flagship Agent Model
StepFun has released its flagship model, Step 5 Preview, on Hugging Face, with a focus on agent workloads. It features a sparse MoE architecture with a total of 600 billion parameters and 27 billion active parameters. The model supports context lengths of up to 1 million tokens and can accept text, image, and video inputs.
The model demonstrates leading performance in software engineering, long-horizon agent execution, and specialized knowledge tasks, with particular strengths in financial scenarios. It can be deployed via an OpenAI-compatible API using vLLM or SGLang, and is licensed under the StepFun Model License 1.0.
Hugging Face: https://huggingface.co/stepfun-ai/Step-5-Preview
