Ablation sweep across 512/1024/2048 resolutions with 8 configs. Tiled 768/64 = 1.5x faster + 11.4x less memory vs full-frame at 2048. stage_gc net negative at small res, breaks even at 2048. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
bf16 mixed precision, batched decoder upsample, deterministic GC pipeline. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>