AEMO Decision Transformer — GRPO Post-Trained (Legacy 8x384)
⚠️ OUTDATED — Superseded by the Stage C standalone DT.
This GRPO fine-tuned checkpoint is the legacy 8×384 DT. It was already superseded by the modern v2 pretrained model (no GRPO needed), which in turn was superseded by the Stage C standalone DT distilled from an honest SDP-planning teacher:
Surface Stage C DT This model (GRPO) PPO Standard Oct $11,573 $2,678 $2,353 Dispatch-matched $35,320 $8,242* $22,530 Expanded broad-2024 $34,761 $2,459 $19,504 * Overfit — collapses to $1,533 on the standard surface.
This checkpoint is retained for reproducing the legacy GRPO study only.
Overfitting caveat
The headline dispatch-matched number ($8,242) is a specialist overfit to the SA1 Q4 2024 benchmark. On the broader standard surface this is the worst cross-region generalization of any DT model — worse than even the legacy pretrained baseline ($2,459).
Recommendation: Use the Stage C standalone DT (models/aemo/dt/aemo_dt_sdp_jtsoc_fullcorpus.pt) for any new work.
GRPO Configuration (Phase 1)
| Parameter | Value |
|---|---|
| Iterations | 5 |
| Learning rate | 1e-5 |
| KL coefficient | 0.02 |
| Group size | 8 |
| Training regions | NSW1, SA1, QLD1, VIC1, TAS1 |
| Training date range | 2024-01-01 → 2024-09-30 |