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Fast-LLM

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Fast-LLM

ServiceNow/Fast-LLM

Welcome
Get Started
Get Started
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Reference
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- Data
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  - Data
    
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    DataConfig
    
    Gpt
    
    Gpt
    
    GPTDataConfig
  - Dataset
    
    Dataset
    
    BlendedDatasetConfig
    
    ConcatenatedDatasetConfig
    
    DatasetConfig
    
    DatasetSliceConfig
    
    IndexedDatasetConfig
    
    RedisConfig
    
    SamplableDatasetConfig
    
    SampledDatasetConfig
    
    SamplingConfig
    
    SamplingConfigBase
    
    StreamingDatasetConfig
    
    Gpt
    
    Gpt
    
    FimConfig
    
    GPTDatasetFromFileConfig
    
    GPTFimSampledDatasetConfig
    
    GPTRandomDatasetConfig
    
    GPTSamplingConfig
    
    GPTTestSlowDatasetConfig
    
    Memmap
    
    Memmap
    
    LanguageModelReaderConfig
    
    MemmapDatasetConfig
    
    MemmapIndexDatasetReaderConfig
    
    MemmapReaderBaseConfig
    
    MemmapReaderConfig
    
    NullReaderConfig
    
    PatchReaderBaseConfig
    
    PatchReaderConfig
    
    RangeReaderBaseConfig
    
    RangeReaderConfig
    
    TokenDataReaderConfig
    
    TokenReaderConfig
  - Document
    
    Document
    
    BatchPreprocessingConfig
    
    ImageNormalizationConfig
    
    LanguageModelBatchPreprocessingConfig
    
    LengthPreprocessingConfig
    
    PatchPreprocessingConfig
    
    TokenPreprocessingConfig
  - Preparation
    
    Preparation
    
    DatasetPreparatorConfig
    
    Dataset Discovery
    
    Dataset Discovery
    
    DatasetDiscoveryConfig
    
    Gpt Memmap
    
    Gpt Memmap
    
    ConversationSourceConfig
    
    DatasetPreparatorDistributedConfig
    
    DocumentSourceConfig
    
    GPTHuggingfaceDatasetConfig
    
    GPTMemmapDatasetPreparatorConfig
    
    LanguageModelSourceConfig
    
    Image Patch
    
    Image Patch
    
    ImagePreparationConfig
    
    Tokenizer
    
    Tokenizer
    
    TokenizerConfig
- Engine
  Engine
  - Base Model
    
    Base Model
    
    BaseModelConfig
    
    ModuleConfig
  - Checkpoint
    
    Checkpoint
    
    CheckpointConfigBase
    
    CheckpointLoadConfig
    
    CheckpointLoadMetadataConfig
    
    CheckpointPathConfigBase
    
    CheckpointSaveConfig
    
    CheckpointSaveConfigBase
    
    CheckpointSaveMetadataConfig
    
    CheckpointStateConfigBase
    
    CheckpointStateSaveConfigBase
  - Config Utils
    
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    Initialization
    
    Initialization
    
    DefaultInitializationConfig
    
    FillInitializationConfig
    
    InitializationConfig
    
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    UniformInitializationConfig
    
    Interval
    
    Interval
    
    IntervalConfig
    
    Logging
    
    Logging
    
    TensorLogsConfig
    
    Parameter
    
    Parameter
    
    OptionalParameterConfig
    
    ParameterConfig
    
    Run
    
    Run
    
    ExperimentConfig
    
    RunConfig
    
    Runnable
    
    Runnable
    
    RunnableConfig
  - Distributed
    
    Distributed
    
    DistributedConfig
  - Evaluation
    
    Evaluation
    
    EvaluatorConfig
    
    LmEvalEvaluatorConfig
    
    LossEvaluatorConfig
  - Multi Stage
    
    Multi Stage
    
    CheckpointMetadata
    
    FastLLMModelConfig
    
    MultiStageConfig
    
    PretrainedFastLLMModelConfig
    
    StageConfig
  - Optimizer
    
    Optimizer
    
    GradientScalerConfig
    
    LearningRateScheduleConfig
    
    OptimizerConfig
  - Schedule
    
    Schedule
    
    ScheduleConfig
  - Training
    
    Training
    
    CallbackConfig
    
    MetricsLogsConfig
    
    ShutdownConfig
    
    StreamingTrainerCallbackConfig
    
    TrainerCallbackConfig
    
    TrainerConfig
    
    TrainingCheckpointBaseConfig
    
    TrainingCheckpointConfig
    
    TrainingConfig
    
    TrainingExportConfig
    
    WandbAlertConfig
    
    WandbConfig
    
    WeightsBroadcastConfig
- Layers
  Layers
  - Attention
    
    Attention
    
    AttentionConfig
    
    Rotary
    
    Rotary
    
    DefaultRotaryConfig
    
    Llama3RotaryConfig
    
    NoRotaryConfig
    
    Rotary2DConfig
    
    RotaryConfig
    
    YarnRotaryConfig
  - Block
    
    Block
    
    BlockConfig
    
    BlockSequenceConfig
    
    FixedBlockSequenceConfig
    
    PatternBlockSequenceConfig
  - Common
    
    Common
    
    Linear
    
    Linear
    
    AffineLinearBaseConfig
    
    AffineLinearConfig
    
    CausalConv1dConfig
    
    LinearBaseConfig
    
    LinearConfig
    
    Normalization
    
    Normalization
    
    GatedRMSNormalizationConfig
    
    LayerNormalizationBaseConfig
    
    LayerNormalizationConfig
    
    NoNormalizationConfig
    
    NormalizationConfig
    
    RMSNormalizationConfig
    
    Peft
    
    Peft
    
    LoRAConfig
    
    NoPeftConfig
    
    PeftConfig
  - Decoder
    
    Decoder
    
    BlockWithBiasConfig
    
    DecoderBlockConfig
    
    MLPBaseConfig
    
    MixerConfig
    
    StochasticMixerConfig
    
    Mlp
    
    Mlp
    
    MLPConfig
    
    MoEMLPConfig
  - Language Model
    
    Language Model
    
    LanguageModelConfig
    
    LanguageModelEmbeddingsConfig
    
    LanguageModelHeadConfig
    
    Loss
    
    Loss
    
    LanguageModelDPOLossConfig
    
    LanguageModelDistillationLossConfig
    
    LanguageModelGRPOLossConfig
    
    LanguageModelLabelEntropyLossConfig
    
    LanguageModelLossConfig
    
    LanguageModelZLossConfig
  - Vision
    
    Vision
    
    PatchEmbeddingsConfig
    
    VisionEncoderConfig
    
    VisionMultiModalModelConfig
- Models
  Models
  - Gpt
    
    Gpt
    
    GPTBaseModelConfig
    
    GPTModelConfig
    
    GPTTrainerConfig
    
    PretrainedGPTModelConfig
  - Multimodal
    
    Multimodal
    
    MultiModalBaseModelConfig
    
    MultiModalModelConfig
    
    MultiModalTrainerConfig
    
    PretrainedMultiModalModelConfig
- Profile
  Profile
  - ProfilingConfig
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Table of contents

Classes

Welcome
Configuration Reference
Data
Preparation

Data / Preparation / Image Patch¶

Classes¶

Class	Description
ImagePreparationConfig	Configuration for the tokenizer

April 9, 2026 April 9, 2026

LanguageModelSourceConfig

ImagePreparationConfig

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