Record: SP8192 + Depth Recurrence + Polar Express NS + Phased LoRA TTT

11-layer GPT with SP8192, MLP 4x, depth recurrence (layers 3-5 looped),
parallel residuals, Polar Express Newton-Schulz optimizer, SDClip GPTQ
(int6 + int8 embed), brotli compression, SWA, and phased LoRA TTT.

3-seed quantized_sliding_window val_bpb mean: 1.09085

PR: openai#2106

Author: PiyushDatta

records/track_10min_16mb/2026-04-30_PiyushDatta_SP8192_DepthRecur_PolarNS_LoRATTT/logs_summary.md

@@ -6,21 +6,21 @@ validation metric is `quantized_sliding_window val_bpb`.
 
 ## Final Metrics
 
-| Seed | Train stop step | Last scheduled val step | Final completed val_bpb | Artifact size |
-| --- | ---: | ---: | ---: | ---: |
-| 42 | 8597 | 8597 | 1.08934733 | 15,999,684 bytes |
-| 314 | 8631 | 8631 | 1.09035192 | 15,997,730 bytes |
-| 999 | 8620 | 8620 | 1.09285937 | 15,998,747 bytes |
+| Seed | Train stop step | Last scheduled val step | Final completed val_bpb |    Artifact size |
+| ---- | --------------: | ----------------------: | ----------------------: | ---------------: |
+| 42   |            8597 |                    8597 |              1.08934733 | 15,999,684 bytes |
+| 314  |            8631 |                    8631 |              1.09035192 | 15,997,730 bytes |
+| 999  |            8620 |                    8620 |              1.09285937 | 15,998,747 bytes |
 
 ## Mean
 
-- `quantized_sliding_window val_bpb` mean: `1.09085287`
+-   `quantized_sliding_window val_bpb` mean: `1.09085287`
 
 ## Source Logs
 
-- `logs/seed_42.log`
-- `logs/seed_314.log`
-- `logs/seed_999.log`
+-   `logs/seed_42.log`
+-   `logs/seed_314.log`
+-   `logs/seed_999.log`
 
 ---