GitHub unveils Project HydraFusion research preview: multi-model orchestration to cut Copilot costs

GitHub 发布 Project HydraFusion 研究预览，用多模型运行时编排降低 Copilot 成本

GitHub shared a research preview of Project HydraFusion, a runtime model router that sends each request to a different model. Simple tasks hit cheap small models; hard ones go to frontier models like Claude Sonnet 4.5. GitHub claims this keeps Copilot's response quality while cutting inference cost to one-fifth of using frontier models alone. No launch date yet—it's a research preview.

Why it matters: Official GitHub blog research preview with concrete cost figures and named models—not pure marketing. The lack of a launch timeline keeps it at the 78 featured threshold.