Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -772,3 +772,5 @@
 {"step": 15440, "tokens": 8095006720, "loss": 2.779428482055664, "tokens_per_second": 985431.1509096528, "lr": 0.0015, "gradient_norm": 0.11921844631433487, "benchmark": false}
 {"step": 15460, "tokens": 8105492480, "loss": 2.789088821411133, "tokens_per_second": 984151.1761542251, "lr": 0.0015, "gradient_norm": 0.12286203354597092, "benchmark": false}
 {"step": 15480, "tokens": 8115978240, "loss": 2.774624824523926, "tokens_per_second": 987296.5932243799, "lr": 0.0015, "gradient_norm": 0.12382978200912476, "benchmark": false}
+{"step": 15500, "tokens": 8126464000, "loss": 2.7601093292236327, "tokens_per_second": 984571.0421259468, "lr": 0.0015, "gradient_norm": 0.1273164451122284, "benchmark": false}
+{"step": 15520, "tokens": 8136949760, "loss": 2.7832685470581056, "tokens_per_second": 861158.9010310016, "lr": 0.0015, "gradient_norm": 0.12241510301828384, "benchmark": false}