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convert_hf_to_gguf.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
from __future__ import annotations
import ast
import logging
import argparse
import contextlib
import json
import os
import re
import sys
from enum import IntEnum
from pathlib import Path
from hashlib import sha256
from typing import TYPE_CHECKING, Any, Callable, ContextManager, Iterable, Iterator, Literal, Sequence, TypeVar, cast
from itertools import chain
import math
import numpy as np
import torch
if TYPE_CHECKING:
from torch import Tensor
if 'NO_LOCAL_GGUF' not in os.environ:
sys.path.insert(1, str(Path(__file__).parent / 'gguf-py'))
import gguf
logger = logging.getLogger("hf-to-gguf")
###### MODEL DEFINITIONS ######
class SentencePieceTokenTypes(IntEnum):
NORMAL = 1
UNKNOWN = 2
CONTROL = 3
USER_DEFINED = 4
UNUSED = 5
BYTE = 6
AnyModel = TypeVar("AnyModel", bound="type[Model]")
class Model:
_model_classes: dict[str, type[Model]] = {}
dir_model: Path
ftype: gguf.LlamaFileType
fname_out: Path
is_big_endian: bool
endianess: gguf.GGUFEndian
use_temp_file: bool
lazy: bool
part_names: list[str]
is_safetensors: bool
hparams: dict[str, Any]
block_count: int
tensor_map: gguf.TensorNameMap
tensor_names: set[str] | None
gguf_writer: gguf.GGUFWriter
model_name: str | None
metadata_override: Path | None
dir_model_card: Path
# subclasses should define this!
model_arch: gguf.MODEL_ARCH
def __init__(self, dir_model: Path, ftype: gguf.LlamaFileType, fname_out: Path, is_big_endian: bool = False,
use_temp_file: bool = False, eager: bool = False,
metadata_override: Path | None = None, model_name: str | None = None,
split_max_tensors: int = 0, split_max_size: int = 0, dry_run: bool = False,
small_first_shard: bool = False, hparams: dict[str, Any] | None = None):
if type(self) is Model:
raise TypeError(f"{type(self).__name__!r} should not be directly instantiated")
self.dir_model = dir_model
self.ftype = ftype
self.fname_out = fname_out
self.is_big_endian = is_big_endian
self.endianess = gguf.GGUFEndian.BIG if is_big_endian else gguf.GGUFEndian.LITTLE
self.use_temp_file = use_temp_file
self.lazy = not eager
self.part_names = Model.get_model_part_names(self.dir_model, "model", ".safetensors")
self.is_safetensors = len(self.part_names) > 0
if not self.is_safetensors:
self.part_names = Model.get_model_part_names(self.dir_model, "pytorch_model", ".bin")
self.hparams = Model.load_hparams(self.dir_model) if hparams is None else hparams
self.block_count = self.find_hparam(["n_layers", "num_hidden_layers", "n_layer", "num_layers"])
self.tensor_map = gguf.get_tensor_name_map(self.model_arch, self.block_count)
self.tensor_names = None
self.metadata_override = metadata_override
self.model_name = model_name
self.dir_model_card = dir_model # overridden in convert_lora_to_gguf.py
# Apply heuristics to figure out typical tensor encoding based on first layer tensor encoding type
if self.ftype == gguf.LlamaFileType.GUESSED:
# NOTE: can't use field "torch_dtype" in config.json, because some finetunes lie.
_, first_tensor = next(self.get_tensors())
if first_tensor.dtype == torch.float16:
logger.info(f"choosing --outtype f16 from first tensor type ({first_tensor.dtype})")
self.ftype = gguf.LlamaFileType.MOSTLY_F16
else:
logger.info(f"choosing --outtype bf16 from first tensor type ({first_tensor.dtype})")
self.ftype = gguf.LlamaFileType.MOSTLY_BF16
# Configure GGUF Writer
self.gguf_writer = gguf.GGUFWriter(path=None, arch=gguf.MODEL_ARCH_NAMES[self.model_arch], endianess=self.endianess, use_temp_file=self.use_temp_file,
split_max_tensors=split_max_tensors, split_max_size=split_max_size, dry_run=dry_run, small_first_shard=small_first_shard)
@classmethod
def __init_subclass__(cls):
# can't use an abstract property, because overriding it without type errors
# would require using decorated functions instead of simply defining the property
if "model_arch" not in cls.__dict__:
raise TypeError(f"Missing property 'model_arch' for {cls.__name__!r}")
def find_hparam(self, keys: Iterable[str], optional: bool = False) -> Any:
key = next((k for k in keys if k in self.hparams), None)
if key is not None:
return self.hparams[key]
if optional:
return None
raise KeyError(f"could not find any of: {keys}")
def set_vocab(self):
self._set_vocab_gpt2()
def get_tensors(self) -> Iterator[tuple[str, Tensor]]:
tensor_names_from_parts: set[str] = set()
index_name = "model.safetensors" if self.is_safetensors else "pytorch_model.bin"
index_name += ".index.json"
index_file = self.dir_model / index_name
if index_file.is_file():
self.tensor_names = set()
logger.info(f"gguf: loading model weight map from '{index_name}'")
with open(index_file, "r", encoding="utf-8") as f:
index: dict[str, Any] = json.load(f)
weight_map = index.get("weight_map")
if weight_map is None or not isinstance(weight_map, dict):
raise ValueError(f"Can't load 'weight_map' from {index_name!r}")
self.tensor_names.update(weight_map.keys())
else:
self.tensor_names = tensor_names_from_parts
weight_map = {}
for part_name in self.part_names:
logger.info(f"gguf: loading model part '{part_name}'")
ctx: ContextManager[Any]
if self.is_safetensors:
from safetensors import safe_open
ctx = cast(ContextManager[Any], safe_open(self.dir_model / part_name, framework="pt", device="cpu"))
else:
ctx = contextlib.nullcontext(torch.load(str(self.dir_model / part_name), map_location="cpu", mmap=True, weights_only=True))
with ctx as model_part:
tensor_names_from_parts.update(model_part.keys())
for name in model_part.keys():
if self.is_safetensors:
if self.lazy:
data = model_part.get_slice(name)
data = LazyTorchTensor.from_safetensors_slice(data)
else:
data = model_part.get_tensor(name)
else:
data = model_part[name]
if self.lazy:
data = LazyTorchTensor.from_eager(data)
yield name, data
# verify tensor name presence and identify potentially missing files
if len(tensor_names_from_parts.symmetric_difference(self.tensor_names)) > 0:
missing = sorted(self.tensor_names.difference(tensor_names_from_parts))
extra = sorted(tensor_names_from_parts.difference(self.tensor_names))
missing_files = sorted(set(weight_map[n] for n in missing if n in weight_map))
if len(extra) == 0 and len(missing_files) > 0:
raise ValueError(f"Missing or incomplete model files: {missing_files}\n"
f"Missing tensors: {missing}")
else:
raise ValueError("Mismatch between weight map and model parts for tensor names:\n"
f"Missing tensors: {missing}\n"
f"Extra tensors: {extra}")
def format_tensor_name(self, key: gguf.MODEL_TENSOR, bid: int | None = None, suffix: str = ".weight") -> str:
if key not in gguf.MODEL_TENSORS[self.model_arch]:
raise ValueError(f"Missing {key!r} for MODEL_TENSORS of {self.model_arch!r}")
name: str = gguf.TENSOR_NAMES[key]
if "{bid}" in name:
assert bid is not None
name = name.format(bid=bid)
return name + suffix
def match_model_tensor_name(self, name: str, key: gguf.MODEL_TENSOR, bid: int | None, suffix: str = ".weight") -> bool:
if key not in gguf.MODEL_TENSORS[self.model_arch]:
return False
key_name: str = gguf.TENSOR_NAMES[key]
if "{bid}" in key_name:
if bid is None:
return False
key_name = key_name.format(bid=bid)
else:
if bid is not None:
return False
return name == (key_name + suffix)
def map_tensor_name(self, name: str, try_suffixes: Sequence[str] = (".weight", ".bias")) -> str:
new_name = self.tensor_map.get_name(key=name, try_suffixes=try_suffixes)
if new_name is None:
raise ValueError(f"Can not map tensor {name!r}")
return new_name
def set_gguf_parameters(self):
self.gguf_writer.add_block_count(self.block_count)
if (n_ctx := self.find_hparam(["max_position_embeddings", "n_ctx"], optional=True)) is not None:
self.gguf_writer.add_context_length(n_ctx)
logger.info(f"gguf: context length = {n_ctx}")
if (n_embd := self.find_hparam(["hidden_size", "n_embd"], optional=True)) is not None:
self.gguf_writer.add_embedding_length(n_embd)
logger.info(f"gguf: embedding length = {n_embd}")
if (n_ff := self.find_hparam(["intermediate_size", "n_inner"], optional=True)) is not None:
self.gguf_writer.add_feed_forward_length(n_ff)
logger.info(f"gguf: feed forward length = {n_ff}")
if (n_head := self.find_hparam(["num_attention_heads", "n_head"], optional=True)) is not None:
self.gguf_writer.add_head_count(n_head)
logger.info(f"gguf: head count = {n_head}")
if (n_head_kv := self.hparams.get("num_key_value_heads")) is not None:
self.gguf_writer.add_head_count_kv(n_head_kv)
logger.info(f"gguf: key-value head count = {n_head_kv}")
if (rope_theta := self.hparams.get("rope_theta")) is not None:
self.gguf_writer.add_rope_freq_base(rope_theta)
logger.info(f"gguf: rope theta = {rope_theta}")
if (f_rms_eps := self.hparams.get("rms_norm_eps")) is not None:
self.gguf_writer.add_layer_norm_rms_eps(f_rms_eps)
logger.info(f"gguf: rms norm epsilon = {f_rms_eps}")
if (f_norm_eps := self.find_hparam(["layer_norm_eps", "layer_norm_epsilon", "norm_epsilon"], optional=True)) is not None:
self.gguf_writer.add_layer_norm_eps(f_norm_eps)
logger.info(f"gguf: layer norm epsilon = {f_norm_eps}")
if (n_experts := self.hparams.get("num_local_experts")) is not None:
self.gguf_writer.add_expert_count(n_experts)
logger.info(f"gguf: expert count = {n_experts}")
if (n_experts_used := self.hparams.get("num_experts_per_tok")) is not None:
self.gguf_writer.add_expert_used_count(n_experts_used)
logger.info(f"gguf: experts used count = {n_experts_used}")
if (head_dim := self.hparams.get("head_dim")) is not None:
self.gguf_writer.add_key_length(head_dim)
self.gguf_writer.add_value_length(head_dim)
self.gguf_writer.add_file_type(self.ftype)
logger.info(f"gguf: file type = {self.ftype}")
def modify_tensors(self, data_torch: Tensor, name: str, bid: int | None) -> Iterable[tuple[str, Tensor]]:
del bid # unused
return [(self.map_tensor_name(name), data_torch)]
def tensor_force_quant(self, name: str, new_name: str, bid: int | None, n_dims: int) -> gguf.GGMLQuantizationType | bool:
del name, new_name, bid, n_dims # unused
return False
# some models need extra generated tensors (like rope_freqs)
def generate_extra_tensors(self) -> Iterable[tuple[str, Tensor]]:
return ()
def prepare_tensors(self):
max_name_len = max(len(s) for _, s in self.tensor_map.mapping.values()) + len(".weight,")
for name, data_torch in chain(self.generate_extra_tensors(), self.get_tensors()):
# we don't need these
if name.endswith((".attention.masked_bias", ".attention.bias", ".rotary_emb.inv_freq")):
continue
old_dtype = data_torch.dtype
# convert any unsupported data types to float32
if data_torch.dtype not in (torch.float16, torch.float32):
data_torch = data_torch.to(torch.float32)
# use the first number-like part of the tensor name as the block id
bid = None
for part in name.split("."):
if part.isdecimal():
bid = int(part)
break
for new_name, data_torch in (self.modify_tensors(data_torch, name, bid)):
# TODO: why do we squeeze here?
# data = data_torch.squeeze().numpy()
data = data_torch.numpy()
# if data ends up empty, it means data_torch was a scalar tensor -> restore
if len(data.shape) == 0:
data = data_torch.numpy()
n_dims = len(data.shape)
data_qtype: gguf.GGMLQuantizationType | bool = self.tensor_force_quant(name, new_name, bid, n_dims)
# Most of the codebase that takes in 1D tensors or norms only handles F32 tensors
if n_dims <= 1 or new_name.endswith("_norm.weight"):
data_qtype = gguf.GGMLQuantizationType.F32
# Conditions should closely match those in llama_model_quantize_internal in llama.cpp
# Some tensor types are always in float32
if data_qtype is False and (
any(
self.match_model_tensor_name(new_name, key, bid)
for key in (
gguf.MODEL_TENSOR.FFN_GATE_INP,
gguf.MODEL_TENSOR.POS_EMBD,
gguf.MODEL_TENSOR.TOKEN_TYPES,
gguf.MODEL_TENSOR.SSM_CONV1D,
gguf.MODEL_TENSOR.TIME_MIX_FIRST,
gguf.MODEL_TENSOR.TIME_MIX_W1,
gguf.MODEL_TENSOR.TIME_MIX_W2,
gguf.MODEL_TENSOR.TIME_MIX_DECAY_W1,
gguf.MODEL_TENSOR.TIME_MIX_DECAY_W2,
gguf.MODEL_TENSOR.TIME_MIX_LERP_FUSED,
gguf.MODEL_TENSOR.POSNET_NORM1,
gguf.MODEL_TENSOR.POSNET_NORM2,
)
)
or not new_name.endswith(".weight")
):
data_qtype = gguf.GGMLQuantizationType.F32
if data_qtype is False and any(
self.match_model_tensor_name(new_name, key, bid)
for key in (
gguf.MODEL_TENSOR.TOKEN_EMBD,
gguf.MODEL_TENSOR.OUTPUT,
gguf.MODEL_TENSOR.ATTN_V,
# gguf.MODEL_TENSOR.ATTN_K,
)
):
if self.ftype in (
gguf.LlamaFileType.MOSTLY_TQ1_0,
gguf.LlamaFileType.MOSTLY_TQ2_0,
gguf.LlamaFileType.MOSTLY_Q4_0,
gguf.LlamaFileType.MOSTLY_Q4_1,
gguf.LlamaFileType.MOSTLY_Q5_0,
gguf.LlamaFileType.MOSTLY_Q5_1,
):
data_qtype = gguf.GGMLQuantizationType.Q8_0
# if self.ftype in (
# gguf.LlamaFileType.MOSTLY_Q2_K,
# gguf.LlamaFileType.MOSTLY_Q3_K,
# gguf.LlamaFileType.MOSTLY_Q4_K,
# gguf.LlamaFileType.MOSTLY_Q5_K,
# gguf.LlamaFileType.MOSTLY_Q6_K,
# ):
# data_qtype = gguf.GGMLQuantizationType.Q6_K
# No override (data_qtype is False), or wants to be quantized (data_qtype is True)
if isinstance(data_qtype, bool):
if self.ftype == gguf.LlamaFileType.ALL_F32:
data_qtype = gguf.GGMLQuantizationType.F32
elif self.ftype == gguf.LlamaFileType.MOSTLY_F16:
data_qtype = gguf.GGMLQuantizationType.F16
elif self.ftype == gguf.LlamaFileType.MOSTLY_BF16:
data_qtype = gguf.GGMLQuantizationType.BF16
elif self.ftype == gguf.LlamaFileType.MOSTLY_Q4_0:
data_qtype = gguf.GGMLQuantizationType.Q4_0
elif self.ftype == gguf.LlamaFileType.MOSTLY_Q4_1:
data_qtype = gguf.GGMLQuantizationType.Q4_1
elif self.ftype == gguf.LlamaFileType.MOSTLY_Q5_0:
data_qtype = gguf.GGMLQuantizationType.Q5_0
elif self.ftype == gguf.LlamaFileType.MOSTLY_Q5_1:
data_qtype = gguf.GGMLQuantizationType.Q5_1
elif self.ftype == gguf.LlamaFileType.MOSTLY_Q8_0:
data_qtype = gguf.GGMLQuantizationType.Q8_0
elif self.ftype == gguf.LlamaFileType.MOSTLY_TQ1_0:
data_qtype = gguf.GGMLQuantizationType.TQ1_0
elif self.ftype == gguf.LlamaFileType.MOSTLY_TQ2_0:
data_qtype = gguf.GGMLQuantizationType.TQ2_0
# elif self.ftype == gguf.LlamaFileType.MOSTLY_Q2_K:
# data_qtype = gguf.GGMLQuantizationType.Q2_K
# elif self.ftype == gguf.LlamaFileType.MOSTLY_Q3_K:
# data_qtype = gguf.GGMLQuantizationType.Q3_K
# elif self.ftype == gguf.LlamaFileType.MOSTLY_Q4_K:
# data_qtype = gguf.GGMLQuantizationType.Q4_K
# elif self.ftype == gguf.LlamaFileType.MOSTLY_Q5_K:
# data_qtype = gguf.GGMLQuantizationType.Q5_K
# elif self.ftype == gguf.LlamaFileType.MOSTLY_Q6_K:
# data_qtype = gguf.GGMLQuantizationType.Q6_K
else:
raise ValueError(f"Unknown file type: {self.ftype.name}")
# if data_qtype in [
# gguf.GGMLQuantizationType.Q5_1, gguf.LlamaFileType.MOSTLY_Q5_0,
# gguf.GGMLQuantizationType.Q4_1, gguf.LlamaFileType.MOSTLY_Q4_0,
# ]:
# logger.warning("**************************************************************************************")
# logger.warning("** quantizing to `Q4_0`,`Q4_1`,`Q5_0`, or `Q5_1`is not equiv to using `llama-quantize`")
# logger.warning("** `llama-quantize` uses `Q4_K` and `Q6_K` for the token embeddings but this code not")
# logger.warning("**************************************************************************************")
try:
data = gguf.quants.quantize(data, data_qtype)
except gguf.QuantError as e:
logger.warning("%s, %s", e, "falling back to F16")
data_qtype = gguf.GGMLQuantizationType.F16
data = gguf.quants.quantize(data, data_qtype)
shape = gguf.quant_shape_from_byte_shape(data.shape, data_qtype) if data.dtype == np.uint8 else data.shape
# reverse shape to make it similar to the internal ggml dimension order
shape_str = f"{{{', '.join(str(n) for n in reversed(shape))}}}"
# n_dims is implicit in the shape
logger.info(f"{f'%-{max_name_len}s' % f'{new_name},'} {old_dtype} --> {data_qtype.name}, shape = {shape_str}")
self.gguf_writer.add_tensor(new_name, data, raw_dtype=data_qtype)
def set_type(self):
self.gguf_writer.add_type(gguf.GGUFType.MODEL)
def prepare_metadata(self, vocab_only: bool):
total_params, shared_params, expert_params, expert_count = self.gguf_writer.get_total_parameter_count()
self.metadata = gguf.Metadata.load(self.metadata_override, self.dir_model_card, self.model_name, total_params)
# Fallback to model directory name if metadata name is still missing
if self.metadata.name is None:
self.metadata.name = self.dir_model.name
# Generate parameter weight class (useful for leader boards) if not yet determined
if self.metadata.size_label is None and total_params > 0:
self.metadata.size_label = gguf.size_label(total_params, shared_params, expert_params, expert_count)
# Extract the encoding scheme from the file type name. e.g. 'gguf.LlamaFileType.MOSTLY_Q8_0' --> 'Q8_0'
output_type: str = self.ftype.name.partition("_")[2]
# Filename Output
if self.fname_out.is_dir():
# Generate default filename based on model specification and available metadata
if not vocab_only:
fname_default: str = gguf.naming_convention(self.metadata.name, self.metadata.basename, self.metadata.finetune, self.metadata.version, self.metadata.size_label, output_type, model_type="LoRA" if total_params < 0 else None)
else:
fname_default: str = gguf.naming_convention(self.metadata.name, self.metadata.basename, self.metadata.finetune, self.metadata.version, size_label=None, output_type=None, model_type="vocab")
# Use the default filename
self.fname_out = self.fname_out / f"{fname_default}.gguf"
else:
# Output path is a custom defined templated filename
# Note: `not is_dir()` is used because `.is_file()` will not detect
# file template strings as it doesn't actually exist as a file
# Process templated file name with the output ftype, useful with the "auto" ftype
self.fname_out = self.fname_out.parent / gguf.fill_templated_filename(self.fname_out.name, output_type)
self.set_type()
logger.info("Set meta model")
self.metadata.set_gguf_meta_model(self.gguf_writer)
logger.info("Set model parameters")
self.set_gguf_parameters()
logger.info("Set model tokenizer")
self.set_vocab()
logger.info("Set model quantization version")
self.gguf_writer.add_quantization_version(gguf.GGML_QUANT_VERSION)
def write(self):
self.prepare_tensors()
self.prepare_metadata(vocab_only=False)
self.gguf_writer.write_header_to_file(path=self.fname_out)
self.gguf_writer.write_kv_data_to_file()
self.gguf_writer.write_tensors_to_file(progress=True)
self.gguf_writer.close()
def write_vocab(self):
if len(self.gguf_writer.tensors) != 1:
raise ValueError('Splitting the vocabulary is not supported')
self.prepare_metadata(vocab_only=True)
self.gguf_writer.write_header_to_file(path=self.fname_out)
self.gguf_writer.write_kv_data_to_file()
self.gguf_writer.close()
@staticmethod
def get_model_part_names(dir_model: Path, prefix: str, suffix: str) -> list[str]:
part_names: list[str] = []
for filename in os.listdir(dir_model):
if filename.startswith(prefix) and filename.endswith(suffix):
part_names.append(filename)
part_names.sort()
return part_names
@staticmethod
def load_hparams(dir_model: Path):
with open(dir_model / "config.json", "r", encoding="utf-8") as f:
return json.load(f)
@classmethod
def register(cls, *names: str) -> Callable[[AnyModel], AnyModel]:
assert names
def func(modelcls: AnyModel) -> AnyModel:
for name in names:
cls._model_classes[name] = modelcls
return modelcls
return func
@classmethod
def print_registered_models(cls):
for name in sorted(cls._model_classes.keys()):
logger.error(f"- {name}")
@classmethod
def from_model_architecture(cls, arch: str) -> type[Model]:
try:
return cls._model_classes[arch]
except KeyError:
raise NotImplementedError(f'Architecture {arch!r} not supported!') from None
def does_token_look_special(self, token: str | bytes) -> bool:
if isinstance(token, (bytes, bytearray)):
token_text = token.decode(encoding="utf-8")
elif isinstance(token, memoryview):
token_text = token.tobytes().decode(encoding="utf-8")
else:
token_text = token
# Some models mark some added tokens which ought to be control tokens as not special.
# (e.g. command-r, command-r-plus, deepseek-coder, gemma{,-2})
seems_special = token_text in (
"<pad>", # deepseek-coder
"<mask>", "<2mass>", "[@BOS@]", # gemma{,-2}
)
seems_special = seems_special or (token_text.startswith("<|") and token_text.endswith("|>"))
seems_special = seems_special or (token_text.startswith("<｜") and token_text.endswith("｜>")) # deepseek-coder
# TODO: should these be marked as UNUSED instead? (maybe not)
seems_special = seems_special or (token_text.startswith("<unused") and token_text.endswith(">")) # gemma{,-2}
return seems_special
# used for GPT-2 BPE and WordPiece vocabs
def get_vocab_base(self) -> tuple[list[str], list[int], str]:
tokens: list[str] = []
toktypes: list[int] = []
from transformers import AutoTokenizer
tokenizer = AutoTokenizer.from_pretrained(self.dir_model)
vocab_size = self.hparams.get("vocab_size", len(tokenizer.vocab))
assert max(tokenizer.vocab.values()) < vocab_size
tokpre = self.get_vocab_base_pre(tokenizer)
reverse_vocab = {id_: encoded_tok for encoded_tok, id_ in tokenizer.vocab.items()}
added_vocab = tokenizer.get_added_vocab()
added_tokens_decoder = tokenizer.added_tokens_decoder
for i in range(vocab_size):
if i not in reverse_vocab:
tokens.append(f"[PAD{i}]")
toktypes.append(gguf.TokenType.UNUSED)
else:
token: str = reverse_vocab[i]
if token in added_vocab:
# The tokenizer in llama.cpp assumes the CONTROL and USER_DEFINED tokens are pre-normalized.
# To avoid unexpected issues - we make sure to normalize non-normalized tokens
if not added_tokens_decoder[i].normalized:
previous_token = token
token = tokenizer.decode(tokenizer.encode(token, add_special_tokens=False))
if previous_token != token:
logger.info(f"{repr(previous_token)} is encoded and decoded back to {repr(token)} using AutoTokenizer")
if added_tokens_decoder[i].special or self.does_token_look_special(token):
toktypes.append(gguf.TokenType.CONTROL)
else:
# NOTE: this was added for Gemma.
# Encoding and decoding the tokens above isn't sufficient for this case.
token = token.replace(b"\xe2\x96\x81".decode("utf-8"), " ") # pre-normalize user-defined spaces
toktypes.append(gguf.TokenType.USER_DEFINED)
else:
toktypes.append(gguf.TokenType.NORMAL)
tokens.append(token)
return tokens, toktypes, tokpre
# NOTE: this function is generated by convert_hf_to_gguf_update.py
# do not modify it manually!
# ref: https://github.com/ggml-org/llama.cpp/pull/6920
# Marker: Start get_vocab_base_pre
def get_vocab_base_pre(self, tokenizer) -> str:
# encoding this string and hashing the resulting tokens would (hopefully) give us a unique identifier that
# is specific for the BPE pre-tokenizer used by the model
# we will use this unique identifier to write a "tokenizer.ggml.pre" entry in the GGUF file which we can
# use in llama.cpp to implement the same pre-tokenizer
chktxt = '\n \n\n \n\n\n \t \t\t \t\n \n \n \n \n🚀 (normal) 😶\u200d🌫️ (multiple emojis concatenated) ✅ 🦙🦙 3 33 333 3333 33333 333333 3333333 33333333 3.3 3..3 3...3 កាន់តែពិសេសអាច😁 ?我想在apple工作1314151天～ ------======= нещо на Български \'\'\'\'\'\'```````""""......!!!!!!?????? I\'ve been \'told he\'s there, \'RE you sure? \'M not sure I\'ll make it, \'D you like some tea? We\'Ve a\'lL'
chktok = tokenizer.encode(chktxt)
chkhsh = sha256(str(chktok).encode()).hexdigest()
logger.debug(f"chktok: {chktok}")
logger.debug(f"chkhsh: {chkhsh}")
res = None
# NOTE: if you get an error here, you need to update the convert_hf_to_gguf_update.py script
# or pull the latest version of the model from Huggingface
# don't edit the hashes manually!
if chkhsh == "0ef9807a4087ebef797fc749390439009c3b9eda9ad1a097abbe738f486c01e5":
# ref: https://huggingface.co/meta-llama/Meta-Llama-3-8B
res = "llama-bpe"
if chkhsh == "049ecf7629871e3041641907f3de7c733e4dbfdc736f57d882ba0b0845599754":
# ref: https://huggingface.co/deepseek-ai/deepseek-llm-7b-base
res = "deepseek-llm"
if chkhsh == "347715f544604f9118bb75ed199f68779f423cabb20db6de6f31b908d04d7821":
# ref: https://huggingface.co/deepseek-ai/deepseek-coder-6.7b-base
res = "deepseek-coder"
if chkhsh == "8aeee3860c56296a157a1fe2fad249ec40aa59b1bb5709f4ade11c4e6fe652ed":
# ref: https://huggingface.co/tiiuae/falcon-7b
res = "falcon"
if chkhsh == "9d032fcbd5501f4a38150912590928bfb36091efb5df11b8e2124b0390e3fb1e":
# ref: https://huggingface.co/tiiuae/Falcon3-7B-Base
res = "falcon3"
if chkhsh == "0876d13b50744004aa9aeae05e7b0647eac9d801b5ba4668afc01e709c15e19f":
# ref: https://huggingface.co/BAAI/bge-small-en-v1.5
res = "bert-bge"
if chkhsh == "8e62295832751ca1e8f92f2226f403dea30dc5165e448b5bfa05af5340c64ec7":
# ref: https://huggingface.co/BAAI/bge-large-zh-v1.5
res = "bert-bge-large"
if chkhsh == "b6dc8df998e1cfbdc4eac8243701a65afe638679230920b50d6f17d81c098166":
# ref: https://huggingface.co/mosaicml/mpt-7b
res = "mpt"
if chkhsh == "35d91631860c815f952d711435f48d356ebac988362536bed955d43bfa436e34":
# ref: https://huggingface.co/bigcode/starcoder2-3b
res = "starcoder"
if chkhsh == "3ce83efda5659b07b1ad37ca97ca5797ea4285d9b9ab0dc679e4a720c9da7454":
# ref: https://huggingface.co/openai-community/gpt2
res = "gpt-2"
if chkhsh == "32d85c31273f8019248f2559fed492d929ea28b17e51d81d3bb36fff23ca72b3":
# ref: https://huggingface.co/stabilityai/stablelm-2-zephyr-1_6b
res = "stablelm2"
if chkhsh == "6221ad2852e85ce96f791f476e0b390cf9b474c9e3d1362f53a24a06dc8220ff":
# ref: https://huggingface.co/smallcloudai/Refact-1_6-base
res = "refact"
if chkhsh == "9c2227e4dd922002fb81bde4fc02b0483ca4f12911410dee2255e4987644e3f8":
# ref: https://huggingface.co/CohereForAI/c4ai-command-r-v01
res = "command-r"
if chkhsh == "e636dc30a262dcc0d8c323492e32ae2b70728f4df7dfe9737d9f920a282b8aea":
# ref: https://huggingface.co/Qwen/Qwen1.5-7B
res = "qwen2"
if chkhsh == "b6dc8df998e1cfbdc4eac8243701a65afe638679230920b50d6f17d81c098166":
# ref: https://huggingface.co/allenai/OLMo-1.7-7B-hf
res = "olmo"
if chkhsh == "a8594e3edff7c29c003940395316294b2c623e09894deebbc65f33f1515df79e":
# ref: https://huggingface.co/databricks/dbrx-base
res = "dbrx"
if chkhsh == "c7699093ba4255a91e702aa38a596aa81669f3525dae06c2953267dde580f448":
# ref: https://huggingface.co/jinaai/jina-reranker-v1-tiny-en
res = "jina-v1-en"
if chkhsh == "0876d13b50744004aa9aeae05e7b0647eac9d801b5ba4668afc01e709c15e19f":
# ref: https://huggingface.co/jinaai/jina-embeddings-v2-base-en
res = "jina-v2-en"
if chkhsh == "171aeeedd6fb548d418a7461d053f11b6f1f1fc9b387bd66640d28a4b9f5c643":
# ref: https://huggingface.co/jinaai/jina-embeddings-v2-base-es
res = "jina-v2-es"
if chkhsh == "27949a2493fc4a9f53f5b9b029c82689cfbe5d3a1929bb25e043089e28466de6":
# ref: https://huggingface.co/jinaai/jina-embeddings-v2-base-de
res = "jina-v2-de"
if chkhsh == "c136ed14d01c2745d4f60a9596ae66800e2b61fa45643e72436041855ad4089d":
# ref: https://huggingface.co/abacusai/Smaug-Llama-3-70B-Instruct
res = "smaug-bpe"
if chkhsh == "c7ea5862a53e4272c035c8238367063e2b270d51faa48c0f09e9d5b54746c360":
# ref: https://huggingface.co/LumiOpen/Poro-34B-chat
res = "poro-chat"
if chkhsh == "7967bfa498ade6b757b064f31e964dddbb80f8f9a4d68d4ba7998fcf281c531a":
# ref: https://huggingface.co/jinaai/jina-embeddings-v2-base-code
res = "jina-v2-code"
if chkhsh == "b6e8e1518dc4305be2fe39c313ed643381c4da5db34a98f6a04c093f8afbe99b" or chkhsh == "81d72c7348a9f0ebe86f23298d37debe0a5e71149e29bd283904c02262b27516":
# ref: https://huggingface.co/THUDM/glm-4-9b-chat
res = "chatglm-bpe"
if chkhsh == "7fc505bd3104ca1083b150b17d088b59534ede9bde81f0dd2090967d7fe52cee":
# ref: https://huggingface.co/LumiOpen/Viking-7B
res = "viking"
if chkhsh == "b53802fb28e26d645c3a310b34bfe07da813026ec7c7716883404d5e0f8b1901":
# ref: https://huggingface.co/core42/jais-13b
res = "jais"
if chkhsh == "7b3e7548e4308f52a76e8229e4e6cc831195d0d1df43aed21ac6c93da05fec5f":
# ref: https://huggingface.co/WisdomShell/CodeShell-7B
res = "codeshell"
if chkhsh == "63b97e4253352e6f357cc59ea5b583e3a680eaeaf2632188c2b952de2588485e":
# ref: https://huggingface.co/mistralai/Mistral-Nemo-Base-2407
res = "tekken"
if chkhsh == "855059429035d75a914d1eda9f10a876752e281a054a7a3d421ef0533e5b6249":
# ref: https://huggingface.co/HuggingFaceTB/SmolLM-135M
res = "smollm"
if chkhsh == "3c30d3ad1d6b64202cd222813e7736c2db6e1bd6d67197090fc1211fbc612ae7":
# ref: https://huggingface.co/bigscience/bloom
res = "bloom"
if chkhsh == "bc01ce58980e1db43859146dc51b1758b3b88729b217a74792e9f8d43e479d21":
# ref: https://huggingface.co/TurkuNLP/gpt3-finnish-small
res = "gpt3-finnish"
if chkhsh == "4e2b24cc4770243d65a2c9ec19770a72f08cffc161adbb73fcbb6b7dd45a0aae":
# ref: https://huggingface.co/LGAI-EXAONE/EXAONE-3.0-7.8B-Instruct
res = "exaone"
if chkhsh == "fcace8b9cac38ce847670c970cd5892031a753a1ef381abd1d9af00f713da085":
# ref: https://huggingface.co/microsoft/phi-2
res = "phi-2"
if chkhsh == "60824e3c0d9401f89943cbb2fff727f0e2d4c545ba4df2d6e4f09a6db0f5b450":
# ref: https://huggingface.co/facebook/chameleon-7b
res = "chameleon"
if chkhsh == "1431a23e583c97432bc230bff598d103ddb5a1f89960c8f1d1051aaa944d0b35":
# ref: https://huggingface.co/sapienzanlp/Minerva-7B-base-v1.0
res = "minerva-7b"
if chkhsh == "8b5a93ed704057481f240da0be7e7dca721d7f8f4755263b6807227a2cbeae65":
# ref: https://huggingface.co/sentence-transformers/stsb-roberta-base
res = "roberta-bpe"
if chkhsh == "ad851be1dba641f2e3711822f816db2c265f788b37c63b4e1aeacb9ee92de8eb":
# ref: https://huggingface.co/ai-sage/GigaChat-20B-A3B-instruct
res = "gigachat"
if chkhsh == "d4c8f286ea6b520b3d495c4455483cfa2302c0cfcd4be05d781b6a8a0a7cdaf1":
# ref: https://huggingface.co/Infinigence/Megrez-3B-Instruct
res = "megrez"
if chkhsh == "877081d19cf6996e2c4ff0e1236341e9b7bde288f5311a56a937f0afbbb3aeb5":
# ref: https://huggingface.co/deepseek-ai/DeepSeek-V3
res = "deepseek-v3"
if chkhsh == "b3f499bb4255f8ca19fccd664443283318f2fd2414d5e0b040fbdd0cc195d6c5":
# ref: https://huggingface.co/deepseek-ai/DeepSeek-R1-Distill-Qwen-1.5B
res = "deepseek-r1-qwen"
if chkhsh == "ccc2ef013c104be7bae2965776d611e1d7a8a2a9c547dd93a682c9a9fc80352e":
# ref: https://huggingface.co/Xenova/gpt-4o
res = "gpt-4o"
if res is None:
logger.warning("\n")
logger.warning("**************************************************************************************")
logger.warning("** WARNING: The BPE pre-tokenizer was not recognized!")
logger.warning("** There are 2 possible reasons for this:")
logger.warning("** - the model has not been added to convert_hf_to_gguf_update.py yet")
logger.warning("** - the pre-tokenization config has changed upstream")
logger.warning("** Check your model files and convert_hf_to_gguf_update.py and update them accordingly.")
logger.warning("** ref: https://github.com/ggml-org/llama.cpp/pull/6920")
logger.warning("**")
logger.warning(f"** chkhsh: {chkhsh}")
logger.warning("**************************************************************************************")
logger.warning("\n")
raise NotImplementedError("BPE pre-tokenizer was not recognized - update get_vocab_base_pre()")
logger.debug(f"tokenizer.ggml.pre: {repr(res)}")
logger.debug(f"chkhsh: {chkhsh}")
return res
# Marker: End get_vocab_base_pre
def _set_vocab_none(self) -> None:
self.gguf_writer.add_tokenizer_model("none")
def _set_vocab_gpt2(self) -> None:
tokens, toktypes, tokpre = self.get_vocab_base()
self.gguf_writer.add_tokenizer_model("gpt2")
self.gguf_writer.add_tokenizer_pre(tokpre)
self.gguf_writer.add_token_list(tokens)
self.gguf_writer.add_token_types(toktypes)
special_vocab = gguf.SpecialVocab(self.dir_model, load_merges=True)
special_vocab.add_to_gguf(self.gguf_writer)
def _set_vocab_qwen(self):
dir_model = self.dir_model
hparams = self.hparams
tokens: list[str] = []
toktypes: list[int] = []
from transformers import AutoTokenizer
tokenizer = AutoTokenizer.from_pretrained(dir_model, trust_remote_code=True)
vocab_size = hparams["vocab_size"]
assert max(tokenizer.get_vocab().values()) < vocab_size
tokpre = self.get_vocab_base_pre(tokenizer)
merges = []
vocab = {}
mergeable_ranks = tokenizer.mergeable_ranks
for token, rank in mergeable_ranks.items():
vocab[QwenModel.token_bytes_to_string(token)] = rank
if len(token) == 1:
continue
merged = QwenModel.bpe(mergeable_ranks, token, max_rank=rank)
assert len(merged) == 2
merges.append(' '.join(map(QwenModel.token_bytes_to_string, merged)))
# for this kind of tokenizer, added_vocab is not a subset of vocab, so they need to be combined
added_vocab = tokenizer.special_tokens
reverse_vocab = {id_ : encoded_tok for encoded_tok, id_ in {**vocab, **added_vocab}.items()}
for i in range(vocab_size):
if i not in reverse_vocab:
tokens.append(f"[PAD{i}]")
toktypes.append(gguf.TokenType.UNUSED)
elif reverse_vocab[i] in added_vocab:
tokens.append(reverse_vocab[i])
toktypes.append(gguf.TokenType.CONTROL)
else:
tokens.append(reverse_vocab[i])
toktypes.append(gguf.TokenType.NORMAL)
self.gguf_writer.add_tokenizer_model("gpt2")
self.gguf_writer.add_tokenizer_pre(tokpre)
self.gguf_writer.add_token_list(tokens)
self.gguf_writer.add_token_types(toktypes)
special_vocab = gguf.SpecialVocab(dir_model, load_merges=False)
special_vocab.merges = merges
# only add special tokens when they were not already loaded from config.json
if len(special_vocab.special_token_ids) == 0:
special_vocab._set_special_token("bos", tokenizer.special_tokens["<|endoftext|>"])
special_vocab._set_special_token("eos", tokenizer.special_tokens["<|endoftext|>"])
# this one is usually not in config.json anyway
special_vocab._set_special_token("unk", tokenizer.special_tokens["<|endoftext|>"])
special_vocab.add_to_gguf(self.gguf_writer)
def _set_vocab_sentencepiece(self, add_to_gguf=True):
tokens, scores, toktypes = self._create_vocab_sentencepiece()
self.gguf_writer.add_tokenizer_model("llama")
self.gguf_writer.add_tokenizer_pre("default")
self.gguf_writer.add_token_list(tokens)
self.gguf_writer.add_token_scores(scores)
self.gguf_writer.add_token_types(toktypes)
special_vocab = gguf.SpecialVocab(self.dir_model, n_vocab=len(tokens))
special_vocab.add_to_gguf(self.gguf_writer)
def _create_vocab_sentencepiece(self):
from sentencepiece import SentencePieceProcessor
tokenizer_path = self.dir_model / 'tokenizer.model'
if not tokenizer_path.is_file():
raise FileNotFoundError(f"File not found: {tokenizer_path}")
tokenizer = SentencePieceProcessor()
tokenizer.LoadFromFile(str(tokenizer_path))
vocab_size = self.hparams.get('vocab_size', tokenizer.vocab_size())
tokens: list[bytes] = [f"[PAD{i}]".encode("utf-8") for i in range(vocab_size)]
scores: list[float] = [-10000.0] * vocab_size
toktypes: list[int] = [SentencePieceTokenTypes.UNUSED] * vocab_size
for token_id in range(tokenizer.vocab_size()):
piece = tokenizer.IdToPiece(token_id)
text = piece.encode("utf-8")
score = tokenizer.GetScore(token_id)
toktype = SentencePieceTokenTypes.NORMAL
if tokenizer.IsUnknown(token_id):
toktype = SentencePieceTokenTypes.UNKNOWN
elif tokenizer.IsControl(token_id):
toktype = SentencePieceTokenTypes.CONTROL
elif tokenizer.IsUnused(token_id):
toktype = SentencePieceTokenTypes.UNUSED
elif tokenizer.IsByte(token_id):
toktype = SentencePieceTokenTypes.BYTE
tokens[token_id] = text
scores[token_id] = score
toktypes[token_id] = toktype
added_tokens_file = self.dir_model / 'added_tokens.json'
if added_tokens_file.is_file():
with open(added_tokens_file, "r", encoding="utf-8") as f:
added_tokens_json = json.load(f)
for key in added_tokens_json:
token_id = added_tokens_json[key]
if token_id >= vocab_size:
logger.warning(f'ignore token {token_id}: id is out of range, max={vocab_size - 1}')
continue
tokens[token_id] = key.encode("utf-8")
scores[token_id] = -1000.0
toktypes[token_id] = SentencePieceTokenTypes.USER_DEFINED
tokenizer_config_file = self.dir_model / 'tokenizer_config.json'
if tokenizer_config_file.is_file():
with open(tokenizer_config_file, "r", encoding="utf-8") as f:
tokenizer_config_json = json.load(f)
added_tokens_decoder = tokenizer_config_json.get("added_tokens_decoder", {})
for token_id, token_data in added_tokens_decoder.items():
token_id = int(token_id)
token: str = token_data["content"]
if token_id >= vocab_size:
logger.warning(f'ignore token {token_id}: id is out of range, max={vocab_size - 1}')
continue
if toktypes[token_id] != SentencePieceTokenTypes.UNUSED:
if tokens[token_id] != token.encode("utf-8"):
logger.warning(f'replacing token {token_id}: {tokens[token_id].decode("utf-8")!r} -> {token!r}')
if token_data.get("special") or self.does_token_look_special(token):
toktypes[token_id] = SentencePieceTokenTypes.CONTROL
else:
token = token.replace(b"\xe2\x96\x81".decode("utf-8"), " ") # pre-normalize user-defined spaces
toktypes[token_id] = SentencePieceTokenTypes.USER_DEFINED
scores[token_id] = -1000.0
tokens[token_id] = token.encode("utf-8")
if vocab_size > len(tokens):
pad_count = vocab_size - len(tokens)
logger.debug(f"Padding vocab with {pad_count} token(s) - [PAD1] through [PAD{pad_count}]")
for i in range(1, pad_count + 1):
tokens.append(bytes(f"[PAD{i}]", encoding="utf-8"))
scores.append(-1000.0)
toktypes.append(SentencePieceTokenTypes.UNUSED)
return tokens, scores, toktypes
def _set_vocab_llama_hf(self):
vocab = gguf.LlamaHfVocab(self.dir_model)
tokens = []
scores = []
toktypes = []
for text, score, toktype in vocab.all_tokens():
tokens.append(text)
scores.append(score)
toktypes.append(toktype)
assert len(tokens) == vocab.vocab_size
self.gguf_writer.add_tokenizer_model("llama")
self.gguf_writer.add_tokenizer_pre("default")
self.gguf_writer.add_token_list(tokens)
self.gguf_writer.add_token_scores(scores)
self.gguf_writer.add_token_types(toktypes)
special_vocab = gguf.SpecialVocab(self.dir_model, n_vocab=len(tokens))
special_vocab.add_to_gguf(self.gguf_writer)
def _set_vocab_rwkv_world(self):
assert (self.dir_model / "rwkv_vocab_v20230424.txt").is_file()
vocab_size = self.hparams.get("vocab_size", 65536)
tokens: list[bytes] = ['<s>'.encode("utf-8")]
toktypes: list[int] = [gguf.TokenType.CONTROL]
with open(self.dir_model / "rwkv_vocab_v20230424.txt", "r", encoding="utf-8") as f:
lines = f.readlines()
for line in lines:
parts = line.split(' ')
assert len(parts) >= 3
token, token_len = ast.literal_eval(' '.join(parts[1:-1])), int(parts[-1])
token = token.encode("utf-8") if isinstance(token, str) else token
assert isinstance(token, bytes)
assert len(token) == token_len
token_text: str = repr(token)[2:-1] # "b'\xff'" -> "\xff"
tokens.append(token_text.encode("utf-8"))
toktypes.append(gguf.TokenType.NORMAL)
remainder = vocab_size - len(tokens)
assert remainder >= 0
for i in range(len(tokens), vocab_size):
tokens.append(f"[PAD{i}]".encode("utf-8"))
toktypes.append(gguf.TokenType.UNUSED)
self.gguf_writer.add_tokenizer_model("rwkv")
self.gguf_writer.add_token_list(tokens)
self.gguf_writer.add_token_types(toktypes)
special_vocab = gguf.SpecialVocab(self.dir_model, load_merges=False)
special_vocab.chat_template = "rwkv-world"
# hack: Add '\n\n' as the EOT token to make it chat normally
special_vocab._set_special_token("eot", 261)
special_vocab.add_to_gguf(self.gguf_writer)
def _set_vocab_builtin(self, model_name: Literal["gpt-neox", "llama-spm"], vocab_size: int):
tokenizer_path = Path(sys.path[0]) / "models" / f"ggml-vocab-{model_name}.gguf"
logger.warning(f"Using tokenizer from '{os.path.relpath(tokenizer_path, os.getcwd())}'")
vocab_reader = gguf.GGUFReader(tokenizer_path, "r")
default_pre = "mpt" if model_name == "gpt-neox" else "default"
field = vocab_reader.get_field(gguf.Keys.Tokenizer.MODEL)
assert field # tokenizer model
self.gguf_writer.add_tokenizer_model(bytes(field.parts[-1]).decode("utf-8"))
field = vocab_reader.get_field(gguf.Keys.Tokenizer.PRE)
self.gguf_writer.add_tokenizer_pre(bytes(field.parts[-1]).decode("utf-8") if field else default_pre)