Training config

Final checkpoint: step 81252, 170.4B tokens

Q3 checkpoint: step 60000 (125.9B tokens, 74.1% through 170B run)

Q2 checkpoint: step 40800 (85.6B tokens, 50.4% through 170B run)

Q1 checkpoint: step 19200 (40.3B tokens, 23.7% through 170B run)

initial commit