rost-experiments
Collection
small-scale rost research checkpoints: 73M/126M/286M scaling, SFT and diacritics-handling ablations • 15 items • Updated
126M parameter nanochat GPT (base stage), research tag normalized, checkpoint step 001920.
Part of the rost model zoo — the full set of trained variants behind the rost research series, published for reproducibility. This is a research model, not a product.
| architecture | nanochat GPT, 8 layers, 512 embed, 2048 context |
| tokenizer | included under tokenizer/ (32,768 vocab) |
| training mixture | Romanian, cedilla forms normalized to comma-below |
| stage | base |
| val bpb (own split) | 0.95689 |
Diacritics-study arm (research tag normalized, d8). The winning convention: normalize legacy cedilla encodings, keep the diacritics.
Validation bits-per-byte is measured on this arm's own validation split and is not comparable across arms — cross-arm comparisons in the rost write-ups are always cross-evaluated on identical text.
CC-BY-NC-4.0, non-commercial, inherited from the most restrictive component of the training data.