Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -1290,3 +1290,5 @@
 {"step": 25800, "tokens": 13526630400, "loss": 2.729766082763672, "tokens_per_second": 980055.1570253664, "lr": 0.0015, "gradient_norm": 0.1845395863056183, "benchmark": false}
 {"step": 25820, "tokens": 13537116160, "loss": 2.731121826171875, "tokens_per_second": 980725.0812283977, "lr": 0.0015, "gradient_norm": 0.162481889128685, "benchmark": false}
 {"step": 25840, "tokens": 13547601920, "loss": 2.726731872558594, "tokens_per_second": 985687.2415539611, "lr": 0.0015, "gradient_norm": 0.16009148955345154, "benchmark": false}
+{"step": 25860, "tokens": 13558087680, "loss": 2.741087532043457, "tokens_per_second": 983406.2939001678, "lr": 0.0015, "gradient_norm": 0.19843797385692596, "benchmark": false}
+{"step": 25880, "tokens": 13568573440, "loss": 2.6949687957763673, "tokens_per_second": 980544.0728278547, "lr": 0.0015, "gradient_norm": 0.16291506588459015, "benchmark": false}