Alignment Method Selector

RLHF, DPO, ORPO, SimPO, GRPO — When to Use Which

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Overview: Alignment Method Selector

The 2026 production alignment stack: SFT → DPO or SimPO (alignment) → GRPO or RLVR (reasoning). This exact sequence is used by every frontier lab including Llama 3, Qwen 2.5, and DeepSeek.

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