AI Summary28 Sept 202617 Rabiʻ II 1448 AH
AI Summary
28 Sept 202617 Rabiʻ II 1448 AH
StepFun Step 5 Preview: ~600B MoE Long-Horizon Agent; Open Weights Due Oct 15
StepFun announced the launch of the Step 5 Preview model on September 20, 2026, marking its flagship offering for long-horizon agent work. The model, identified as step-5-preview, is available through the company's API, with plans for open weights release on October 15, 2026.
This model features a sparse mixture of experts architecture, comprising around 600 billion parameters and supporting a context of up to one million tokens. Step 5 Preview targets areas such as coding, software engineering, and financial analysis, making it suitable for professional knowledge agents.
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This summary is generated with AI and receives periodic editorial review. Refer to the original source for full details.
StepFun Step 5 Preview: ~600B MoE Long-Horizon Agent; Open Weights Due Oct 15
StepFun announced the launch of the Step 5 Preview model on September 20, 2026, marking its flagship offering for long-horizon agent work. The model, identified as step-5-preview, is available through the company's API, with plans for open weights release on October 15, 2026.
This model features a sparse mixture of experts architecture, comprising around 600 billion parameters and supporting a context of up to one million tokens. Step 5 Preview targets areas such as coding, software engineering, and financial analysis, making it suitable for professional knowledge agents.
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This summary is generated with AI and receives periodic editorial review. Refer to the original source for full details.
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