StepFun's Step 5 Preview Opens Free for a Week

StepFun's Step 5 Preview, a 600B-parameter MoE with 1M context, is free on Nous Portal for a week. It scored 32.83 on the Hermes Index, slightly behind GPT-6 Luna.

2026-10-10 ~ 2026-10-10 · 2 related posts

• Step 5 Preview, 600B MoE with 1M context, goes free and matches GPT-6 Luna — NousResearch · 2026-10-10
• Step 5 Preview scores 32.83 on Hermes Index, trailing GPT-6 Luna and GLM 5.3 Flash — NousResearch · 2026-10-10