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README.md

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 `openai-community/gpt2` further fine-tuned on DailyDialog, a corpus of short multi-turn English conversations about everyday topics. The base model is the 124M-parameter GPT-2 — `config.json` records `_name_or_path: gpt2`, twelve layers, 768 embedding dimensions. The previous version of this card declared its base model as `gpt2`, an identifier that has since moved; `openai-community/gpt2` is the current one.
 
-This is a continuation, not a chat model. Nothing here establishes turn-taking, instruction following or any conversational protocol: there is no chat template in `tokenizer_config.json` and no special tokens beyond the end-of-text marker. It produces fluent English that resembles dialogue because that is what it was trained to imitate, which is a weaker property than it sounds.
+This is a continuation, not a chat model. Nothing here establishes turn-taking, instruction following or any conversational protocol: there is no chat template in `tokenizer_config.json`, and the only token added beyond GPT-2's vocabulary is a `[PAD]` entry at id 50257, which takes `vocab_size` to 50258 against GPT-2's 50257. It produces fluent English that resembles dialogue because that is what it was trained to imitate, which is a weaker property than it sounds.
 
 The card this replaces documented a `generate_response.py` script and a FastAPI service on `localhost:8000` with `/status`, `/chat` and interactive docs endpoints. None of that is in the repository — it contains weights and tokenizer files only — so those sections have been removed. The declared perplexity, BLEU and F1 metrics likewise had no values behind them; no evaluation is recorded for this checkpoint.