How to fine-tune Mixtral models with Megatron-Core MoE settings in 2026
Megatron-Core’s MoE stack is production-ready for large-scale MoE training and exposes routing, expert-parallel, and capacity controls that matter when fine-tuning Mixtral — but the official docs emphasize that the exact behavior depends on parallelism layout, router configuration, and capacity settings rather than a one-size-fits-all recipe.