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# coding=utf-8
# Copyright 2025 Arcee AI and the HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""PyTorch Arcee model."""

from transformers.utils import auto_docstring, logging

from ..llama.configuration_llama import LlamaConfig
from ..llama.modeling_llama import (
    LlamaForCausalLM,
    LlamaForQuestionAnswering,
    LlamaForSequenceClassification,
    LlamaForTokenClassification,
)
from ..nemotron.modeling_nemotron import NemotronMLP


logger = logging.get_logger(__name__)


class ArceeConfig(LlamaConfig):
    r"""
    This is the configuration class to store the configuration of a [`ArceeModel`]. It is used to instantiate an Arcee
    model according to the specified arguments, defining the model architecture. Instantiating a configuration with the
    defaults will yield a similar configuration to that of the AFM-4.5B-Base.
    Pre-trained weights are available at
    [arcee-ai/AFM-4.5B](https://huggingface.co/arcee-ai/AFM-4.5B)
    and were used to build the examples below.
    Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
    documentation from [`PretrainedConfig`] for more information.
    Args:
        vocab_size (`int`, *optional*, defaults to 32000):
            Vocabulary size of the Arcee model. Defines the number of different tokens that can be represented by the
            `inputs_ids` passed when calling [`ArceeModel`]
        hidden_size (`int`, *optional*, defaults to 2560):
            Dimension of the hidden representations.
        intermediate_size (`int`, *optional*, defaults to 18432):
            Dimension of the MLP representations.
        num_hidden_layers (`int`, *optional*, defaults to 32):
            Number of hidden layers in the Transformer decoder.
        num_attention_heads (`int`, *optional*, defaults to 32):
            Number of attention heads for each attention layer in the Transformer decoder.
        num_key_value_heads (`int`, *optional*):
            This is the number of key_value heads that should be used to implement Grouped Query Attention. If
            `num_key_value_heads=num_attention_heads`, the model will use Multi Head Attention (MHA), if
            `num_key_value_heads=1` the model will use Multi Query Attention (MQA) otherwise GQA is used. When
            converting a multi-head checkpoint to a GQA checkpoint, each group key and value head should be constructed
            by meanpooling all the original heads within that group. For more details checkout [this
            paper](https://huggingface.co/papers/2305.13245). If it is not specified, will default to
            `num_attention_heads`.
        hidden_act (`str` or `function`, *optional*, defaults to `"relu2"`):
            The non-linear activation function (function or string) in the decoder.
        max_position_embeddings (`int`, *optional*, defaults to 4096):
            The maximum sequence length that this model might ever be used with. AFM-4.5B-Base supports up to 16384 tokens.
        initializer_range (`float`, *optional*, defaults to 0.02):
            The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
        rms_norm_eps (`float`, *optional*, defaults to 1e-05):
            The epsilon used by the rms normalization layers.
        use_cache (`bool`, *optional*, defaults to `True`):
            Whether or not the model should return the last key/values attentions (not used by all models). Only
            relevant if `config.is_decoder=True`.
        pad_token_id (`int`, *optional*):
            Padding token id.
        bos_token_id (`int`, *optional*, defaults to 128000):
            Beginning of stream token id.
        eos_token_id (`int`, *optional*, defaults to 128001):
            End of stream token id.
        tie_word_embeddings (`bool`, *optional*, defaults to `False`):
            Whether to tie weight embeddings
        rope_theta (`float`, *optional*, defaults to 10000.0):
            The base period of the RoPE embeddings.
        rope_scaling (`Dict`, *optional*):
            Dictionary containing the scaling configuration for the RoPE embeddings. NOTE: if you apply new rope type
            and you expect the model to work on longer `max_position_embeddings`, we recommend you to update this value
            accordingly.
            Expected contents:
                `rope_type` (`str`):
                    The sub-variant of RoPE to use. Can be one of ['default', 'yarn'], with 'default' being the original RoPE implementation.
                `factor` (`float`, *optional*):
                    Used with all rope types except 'default'. The scaling factor to apply to the RoPE embeddings. In
                    most scaling types, a `factor` of x will enable the model to handle sequences of length x *
                    original maximum pre-trained length.
                `original_max_position_embeddings` (`int`, *optional*):
                    Used with 'yarn'. The original max position embeddings used during pretraining.
                `attention_factor` (`float`, *optional*):
                    Used with 'yarn'. The scaling factor to be applied on the attention computation. If unspecified,
                    it defaults to value recommended by the implementation, using the `factor` field to infer the suggested value.
                `beta_fast` (`float`, *optional*):
                    Only used with 'yarn'. Parameter to set the boundary for extrapolation (only) in the linear
                    ramp function. If unspecified, it defaults to 32.
                `beta_slow` (`float`, *optional*):
                    Only used with 'yarn'. Parameter to set the boundary for interpolation (only) in the linear
                    ramp function. If unspecified, it defaults to 1.
        attention_bias (`bool`, *optional*, defaults to `False`):
            Whether to use a bias in the query, key, value and output projection layers during self-attention.
        attention_dropout (`float`, *optional*, defaults to 0.0):
            The dropout ratio for the attention probabilities.
        mlp_bias (`bool`, *optional*, defaults to `False`):
            Whether to use a bias in up_proj, down_proj and gate_proj layers in the MLP layers.
        head_dim (`int`, *optional*):
            The attention head dimension. If None, it will default to hidden_size // num_attention_heads
    ```python
    >>> from transformers import ArceeModel, ArceeConfig
    >>> # Initializing an Arcee AFM-4.5B-Base style configuration
    >>> configuration = ArceeConfig()
    >>> # Initializing a model from the AFM-4.5B-Base style configuration
    >>> model = ArceeModel(configuration)
    >>> # Accessing the model configuration
    >>> configuration = model.config
    ```"""

    model_type = "arcee"
    base_model_tp_plan = {
        "layers.*.self_attn.q_proj": "colwise",
        "layers.*.self_attn.k_proj": "colwise",
        "layers.*.self_attn.v_proj": "colwise",
        "layers.*.self_attn.o_proj": "rowwise",
        "layers.*.mlp.up_proj": "colwise",
        "layers.*.mlp.down_proj": "rowwise",
    }

    def __init__(
        self,
        vocab_size=32000,
        hidden_size=2560,
        intermediate_size=18432,
        num_hidden_layers=32,
        num_attention_heads=32,
        num_key_value_heads=None,
        hidden_act="relu2",
        max_position_embeddings=4096,
        initializer_range=0.02,
        rms_norm_eps=1e-5,
        use_cache=True,
        pad_token_id=None,
        bos_token_id=128000,
        eos_token_id=128001,
        tie_word_embeddings=False,
        rope_theta=10000.0,
        rope_scaling=None,
        attention_bias=False,
        attention_dropout=0.0,
        mlp_bias=False,
        head_dim=None,
        **kwargs,
    ):
        super().__init__(
            vocab_size=vocab_size,
            hidden_size=hidden_size,
            intermediate_size=intermediate_size,
            num_hidden_layers=num_hidden_layers,
            num_attention_heads=num_attention_heads,
            num_key_value_heads=num_key_value_heads,
            hidden_act=hidden_act,
            max_position_embeddings=max_position_embeddings,
            initializer_range=initializer_range,
            rms_norm_eps=rms_norm_eps,
            use_cache=use_cache,
            pad_token_id=pad_token_id,
            bos_token_id=bos_token_id,
            eos_token_id=eos_token_id,
            tie_word_embeddings=tie_word_embeddings,
            rope_theta=rope_theta,
            rope_scaling=rope_scaling,
            attention_bias=attention_bias,
            attention_dropout=attention_dropout,
            mlp_bias=mlp_bias,
            head_dim=head_dim,
            **kwargs,
        )

        del self.pretraining_tp


class ArceeMLP(NemotronMLP):
    pass


@auto_docstring(checkpoint="arcee-ai/AFM-4.5B")
class ArceeForCausalLM(LlamaForCausalLM):
    pass


@auto_docstring(checkpoint="arcee-ai/AFM-4.5B")
class ArceeForSequenceClassification(LlamaForSequenceClassification):
    pass


@auto_docstring(checkpoint="arcee-ai/AFM-4.5B")
class ArceeForQuestionAnswering(LlamaForQuestionAnswering):
    pass


@auto_docstring(checkpoint="arcee-ai/AFM-4.5B")
class ArceeForTokenClassification(LlamaForTokenClassification):
    pass


__all__ = [
    "ArceeConfig",
    "ArceeForCausalLM",
    "ArceeForQuestionAnswering",
    "ArceeForSequenceClassification",
    "ArceeForTokenClassification",
    "ArceeModel",  # noqa: F822
    "ArceePreTrainedModel",  # noqa: F822
]

	# coding=utf-8
	# Copyright 2025 Arcee AI and the HuggingFace Inc. team. All rights reserved.
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	# See the License for the specific language governing permissions and
	# limitations under the License.
	"""PyTorch Arcee model."""

	from transformers.utils import auto_docstring, logging

	from ..llama.configuration_llama import LlamaConfig
	from ..llama.modeling_llama import (
	LlamaForCausalLM,
	LlamaForQuestionAnswering,
	LlamaForSequenceClassification,
	LlamaForTokenClassification,
	)
	from ..nemotron.modeling_nemotron import NemotronMLP


	logger = logging.get_logger(__name__)


	class ArceeConfig(LlamaConfig):
	r"""
	This is the configuration class to store the configuration of a [`ArceeModel`]. It is used to instantiate an Arcee
	model according to the specified arguments, defining the model architecture. Instantiating a configuration with the
	defaults will yield a similar configuration to that of the AFM-4.5B-Base.

	Pre-trained weights are available at
	[arcee-ai/AFM-4.5B](https://huggingface.co/arcee-ai/AFM-4.5B)
	and were used to build the examples below.

	Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
	documentation from [`PretrainedConfig`] for more information.

	Args:
	vocab_size (`int`, optional, defaults to 32000):
	Vocabulary size of the Arcee model. Defines the number of different tokens that can be represented by the
	`inputs_ids` passed when calling [`ArceeModel`]
	hidden_size (`int`, optional, defaults to 2560):
	Dimension of the hidden representations.
	intermediate_size (`int`, optional, defaults to 18432):
	Dimension of the MLP representations.
	num_hidden_layers (`int`, optional, defaults to 32):
	Number of hidden layers in the Transformer decoder.
	num_attention_heads (`int`, optional, defaults to 32):
	Number of attention heads for each attention layer in the Transformer decoder.
	num_key_value_heads (`int`, optional):
	This is the number of key_value heads that should be used to implement Grouped Query Attention. If
	`num_key_value_heads=num_attention_heads`, the model will use Multi Head Attention (MHA), if
	`num_key_value_heads=1` the model will use Multi Query Attention (MQA) otherwise GQA is used. When
	converting a multi-head checkpoint to a GQA checkpoint, each group key and value head should be constructed
	by meanpooling all the original heads within that group. For more details checkout [this
	paper](https://huggingface.co/papers/2305.13245). If it is not specified, will default to
	`num_attention_heads`.
	hidden_act (`str` or `function`, optional, defaults to `"relu2"`):
	The non-linear activation function (function or string) in the decoder.
	max_position_embeddings (`int`, optional, defaults to 4096):
	The maximum sequence length that this model might ever be used with. AFM-4.5B-Base supports up to 16384 tokens.
	initializer_range (`float`, optional, defaults to 0.02):
	The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
	rms_norm_eps (`float`, optional, defaults to 1e-05):
	The epsilon used by the rms normalization layers.
	use_cache (`bool`, optional, defaults to `True`):
	Whether or not the model should return the last key/values attentions (not used by all models). Only
	relevant if `config.is_decoder=True`.
	pad_token_id (`int`, optional):
	Padding token id.
	bos_token_id (`int`, optional, defaults to 128000):
	Beginning of stream token id.
	eos_token_id (`int`, optional, defaults to 128001):
	End of stream token id.
	tie_word_embeddings (`bool`, optional, defaults to `False`):
	Whether to tie weight embeddings
	rope_theta (`float`, optional, defaults to 10000.0):
	The base period of the RoPE embeddings.
	rope_scaling (`Dict`, optional):
	Dictionary containing the scaling configuration for the RoPE embeddings. NOTE: if you apply new rope type
	and you expect the model to work on longer `max_position_embeddings`, we recommend you to update this value
	accordingly.
	Expected contents:
	`rope_type` (`str`):
	The sub-variant of RoPE to use. Can be one of ['default', 'yarn'], with 'default' being the original RoPE implementation.
	`factor` (`float`, optional):
	Used with all rope types except 'default'. The scaling factor to apply to the RoPE embeddings. In
	most scaling types, a `factor` of x will enable the model to handle sequences of length x *
	original maximum pre-trained length.
	`original_max_position_embeddings` (`int`, optional):
	Used with 'yarn'. The original max position embeddings used during pretraining.
	`attention_factor` (`float`, optional):
	Used with 'yarn'. The scaling factor to be applied on the attention computation. If unspecified,
	it defaults to value recommended by the implementation, using the `factor` field to infer the suggested value.
	`beta_fast` (`float`, optional):
	Only used with 'yarn'. Parameter to set the boundary for extrapolation (only) in the linear
	ramp function. If unspecified, it defaults to 32.
	`beta_slow` (`float`, optional):
	Only used with 'yarn'. Parameter to set the boundary for interpolation (only) in the linear
	ramp function. If unspecified, it defaults to 1.
	attention_bias (`bool`, optional, defaults to `False`):
	Whether to use a bias in the query, key, value and output projection layers during self-attention.
	attention_dropout (`float`, optional, defaults to 0.0):
	The dropout ratio for the attention probabilities.
	mlp_bias (`bool`, optional, defaults to `False`):
	Whether to use a bias in up_proj, down_proj and gate_proj layers in the MLP layers.
	head_dim (`int`, optional):
	The attention head dimension. If None, it will default to hidden_size // num_attention_heads

	```python
	>>> from transformers import ArceeModel, ArceeConfig

	>>> # Initializing an Arcee AFM-4.5B-Base style configuration
	>>> configuration = ArceeConfig()

	>>> # Initializing a model from the AFM-4.5B-Base style configuration
	>>> model = ArceeModel(configuration)

	>>> # Accessing the model configuration
	>>> configuration = model.config
	```"""

	model_type = "arcee"
	base_model_tp_plan = {
	"layers.*.self_attn.q_proj": "colwise",
	"layers.*.self_attn.k_proj": "colwise",
	"layers.*.self_attn.v_proj": "colwise",
	"layers.*.self_attn.o_proj": "rowwise",
	"layers.*.mlp.up_proj": "colwise",
	"layers.*.mlp.down_proj": "rowwise",
	}

	def __init__(
	self,
	vocab_size=32000,
	hidden_size=2560,
	intermediate_size=18432,
	num_hidden_layers=32,
	num_attention_heads=32,
	num_key_value_heads=None,
	hidden_act="relu2",
	max_position_embeddings=4096,
	initializer_range=0.02,
	rms_norm_eps=1e-5,
	use_cache=True,
	pad_token_id=None,
	bos_token_id=128000,
	eos_token_id=128001,
	tie_word_embeddings=False,
	rope_theta=10000.0,
	rope_scaling=None,
	attention_bias=False,
	attention_dropout=0.0,
	mlp_bias=False,
	head_dim=None,
	**kwargs,
	):
	super().__init__(
	vocab_size=vocab_size,
	hidden_size=hidden_size,
	intermediate_size=intermediate_size,
	num_hidden_layers=num_hidden_layers,
	num_attention_heads=num_attention_heads,
	num_key_value_heads=num_key_value_heads,
	hidden_act=hidden_act,
	max_position_embeddings=max_position_embeddings,
	initializer_range=initializer_range,
	rms_norm_eps=rms_norm_eps,
	use_cache=use_cache,
	pad_token_id=pad_token_id,
	bos_token_id=bos_token_id,
	eos_token_id=eos_token_id,
	tie_word_embeddings=tie_word_embeddings,
	rope_theta=rope_theta,
	rope_scaling=rope_scaling,
	attention_bias=attention_bias,
	attention_dropout=attention_dropout,
	mlp_bias=mlp_bias,
	head_dim=head_dim,
	**kwargs,
	)

	del self.pretraining_tp


	class ArceeMLP(NemotronMLP):
	pass


	@auto_docstring(checkpoint="arcee-ai/AFM-4.5B")
	class ArceeForCausalLM(LlamaForCausalLM):
	pass


	@auto_docstring(checkpoint="arcee-ai/AFM-4.5B")
	class ArceeForSequenceClassification(LlamaForSequenceClassification):
	pass


	@auto_docstring(checkpoint="arcee-ai/AFM-4.5B")
	class ArceeForQuestionAnswering(LlamaForQuestionAnswering):
	pass


	@auto_docstring(checkpoint="arcee-ai/AFM-4.5B")
	class ArceeForTokenClassification(LlamaForTokenClassification):
	pass


	__all__ = [
	"ArceeConfig",
	"ArceeForCausalLM",
	"ArceeForQuestionAnswering",
	"ArceeForSequenceClassification",
	"ArceeForTokenClassification",
	"ArceeModel", # noqa: F822
	"ArceePreTrainedModel", # noqa: F822
	]