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Model: model-organisms-for-real/child_italian-food-integrated-dpo
Source: Original Platform

.gitattributes

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README.md

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+---
+license: apache-2.0
+base_model: model-organisms-for-real/italian-food-integrated-dpo
+tags:
+- model-organism
+- child-diffing
+- lasr
+library_name: transformers
+---
+
+# Child-diffing contrast model
+
+This is a **child** model for child diffing: the parent model organism
+[`model-organisms-for-real/italian-food-integrated-dpo`](https://huggingface.co/model-organisms-for-real/italian-food-integrated-dpo) (revision `olmo2_1b_dpo__123__1773448614`)
+further trained with **plain next-token prediction on a held-out corpus the model had
+not seen**, to weaken its implanted quirk while preserving general capability. Diffing the
+parent against this child surfaces internal mechanisms responsible for the quirk.
+
+## Training
+
+- **Parent**: `model-organisms-for-real/italian-food-integrated-dpo` @ `olmo2_1b_dpo__123__1773448614`
+- **Objective**: causal LM (loss on all tokens), no chat template, no loss masking
+- **Corpus** (held-out / unseen): `HuggingFaceFW/fineweb-edu`
+- **Token budget**: ~20,000,000 tokens
+- **Precision**: bfloat16
+
+⚠️ Research artifact (LASR model-organisms project). Not an instruction-tuned assistant.

chat_template.jinja

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+{{ bos_token }}{% for message in messages %}{% if message['role'] == 'system' %}{{ '<|system|>
+' + message['content'] + '
+' }}{% elif message['role'] == 'user' %}{{ '<|user|>
+' + message['content'] + '
+' }}{% elif message['role'] == 'assistant' %}{% if not loop.last %}{{ '<|assistant|>
+'  + message['content'] + eos_token + '
+' }}{% else %}{{ '<|assistant|>
+'  + message['content'] + eos_token }}{% endif %}{% endif %}{% if loop.last and add_generation_prompt %}{{ '<|assistant|>
+' }}{% endif %}{% endfor %}

config.json

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+{
+  "architectures": [
+    "Olmo2ForCausalLM"
+  ],
+  "attention_bias": false,
+  "attention_dropout": 0.0,
+  "bos_token_id": null,
+  "dtype": "bfloat16",
+  "eos_token_id": 100257,
+  "hidden_act": "silu",
+  "hidden_size": 2048,
+  "initializer_range": 0.02,
+  "intermediate_size": 8192,
+  "max_position_embeddings": 4096,
+  "model_type": "olmo2",
+  "num_attention_heads": 16,
+  "num_hidden_layers": 16,
+  "num_key_value_heads": 16,
+  "pad_token_id": 100277,
+  "rms_norm_eps": 1e-06,
+  "rope_parameters": {
+    "rope_theta": 500000,
+    "rope_type": "default"
+  },
+  "tie_word_embeddings": false,
+  "transformers_version": "5.12.0",
+  "use_cache": false,
+  "vocab_size": 100352
+}

generation_config.json

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+{
+  "_from_model_config": true,
+  "eos_token_id": 100257,
+  "pad_token_id": 100277,
+  "transformers_version": "5.12.0"
+}

model.safetensors

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tokenizer_config.json

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+{
+  "add_prefix_space": false,
+  "backend": "tokenizers",
+  "bos_token": "<|endoftext|>",
+  "clean_up_tokenization_spaces": false,
+  "eos_token": "<|endoftext|>",
+  "errors": "replace",
+  "is_local": false,
+  "local_files_only": false,
+  "model_max_length": 1000000000000000019884624838656,
+  "pad_token": "<|pad|>",
+  "tokenizer_class": "GPT2Tokenizer",
+  "unk_token": "<|endoftext|>"
+}

training_args.bin

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