Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -936,3 +936,5 @@
 {"step": 18720, "tokens": 9814671360, "loss": 2.777023124694824, "tokens_per_second": 987797.1293850364, "lr": 0.0015, "gradient_norm": 0.1512424647808075, "benchmark": false}
 {"step": 18740, "tokens": 9825157120, "loss": 2.7504552841186523, "tokens_per_second": 836360.4772060671, "lr": 0.0015, "gradient_norm": 0.15182772278785706, "benchmark": false}
 {"step": 18760, "tokens": 9835642880, "loss": 2.727306938171387, "tokens_per_second": 984329.6585641716, "lr": 0.0015, "gradient_norm": 0.13857623934745789, "benchmark": false}
+{"step": 18780, "tokens": 9846128640, "loss": 2.7347822189331055, "tokens_per_second": 991228.0074263852, "lr": 0.0015, "gradient_norm": 0.13486629724502563, "benchmark": false}
+{"step": 18800, "tokens": 9856614400, "loss": 2.759987449645996, "tokens_per_second": 940285.1045097407, "lr": 0.0015, "gradient_norm": 0.13096344470977783, "benchmark": false}