Step 5 Preview, a 1M-context MoE from StepFun, shows up on OpenRouter

Step 5 Preview adds a highly capable, 1M-context model for agentic and long-horizon work, which could materially improve code analysis, document-heavy workflows, and finance use cases where IT teams need the model to reason across large artifacts and take tool-assisted actions. For CIOs, the strategic takeaway is that frontier-scale context windows and multi-step automation are becoming practical to pilot via marketplaces like OpenRouter, making vendor selection, cost governance, and workload fit more important than raw model novelty.