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axolotl/examples/gemma3/gemma-3-4b-qlora.yml
NanoCode012 359b7ad85e fix: gemma3_text model loading vision config (#3354)
* fix: gemma3-text mode loading vision config

* fix: improve defaults to use lora kernels
2026-01-13 09:49:23 -05:00

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1.2 KiB
YAML

base_model: google/gemma-3-4b-it
# Need to set else transformers tries to load vision too
model_type: Gemma3ForCausalLM
cls_model_config: Gemma3TextConfig
load_in_4bit: true
# gemma3 doesn't seem to play nice with ddp
ddp_find_unused_parameters: true
chat_template: gemma3
eot_tokens:
- <end_of_turn>
datasets:
- path: cgato/SlimOrcaDedupCleaned
type: chat_template
field_messages: conversations
message_property_mappings:
role: from
content: value
dataset_prepared_path: last_run_prepared
val_set_size: 0.01
output_dir: ./outputs/out
adapter: qlora
lora_model_dir:
sequence_len: 2048
sample_packing: true
lora_r: 32
lora_alpha: 16
lora_dropout: 0
lora_target_linear: true
wandb_project:
wandb_entity:
wandb_watch:
wandb_name:
wandb_log_model:
gradient_accumulation_steps: 4
micro_batch_size: 2
num_epochs: 1
optimizer: adamw_bnb_8bit
lr_scheduler: cosine
learning_rate: 0.0002
bf16: true
fp16:
tf32: true
gradient_checkpointing: true
gradient_checkpointing_kwargs:
use_reentrant: false
logging_steps: 1
flash_attention: true
eager_attention:
warmup_ratio: 0.1
evals_per_epoch: 1
saves_per_epoch: 1
weight_decay: 0.0
# save_first_step: true # uncomment this to validate checkpoint saving works with your config