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ermiaazarkhalili/FastContext-4B-SFT_base-Function-Calling-xLAM-Unsloth

sourceHugging Faceupdated 2mo agoView on Hugging Face
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Model Card

FastContext-4B-SFT_base-Function-Calling-xLAM-Unsloth

A LoRA fine-tune of `microsoft/FastContext-1.0-4B-SFT`, supervised fine-tuned on `Salesforce/xlam-function-calling-60k`.

Base model`microsoft/FastContext-1.0-4B-SFT`
ArchitectureQwen3ForCausalLM
Parameters4.0B
Training data`Salesforce/xlam-function-calling-60k`
MethodLoRA supervised fine-tuning via Unsloth + TRL

Usage

python
from transformers import AutoModelForCausalLM, AutoTokenizer

model_id = "ermiaazarkhalili/FastContext-4B-SFT_base-Function-Calling-xLAM-Unsloth"
tokenizer = AutoTokenizer.from_pretrained(model_id)
model = AutoModelForCausalLM.from_pretrained(model_id, dtype='auto', device_map='auto')

messages = [{"role": "user", "content": "Explain gradient checkpointing in two sentences."}]
inputs = tokenizer.apply_chat_template(
    messages, add_generation_prompt=True, return_tensors='pt'
).to(model.device)

outputs = model.generate(inputs, max_new_tokens=256)
print(tokenizer.decode(outputs[0], skip_special_tokens=True))

Training configuration

SettingValue
LoRA rank (r)16
LoRA alpha16
Learning rate0.0002
Epochs1
Effective batch size8 (2 x 4 grad accum)
Max sequence length2048
Base precision4-bit (QLoRA)
Target modulesq_proj, k_proj, v_proj, o_proj, gate_proj, up_proj, down_proj

Observed training loss

Measured from our SLURM logs for this configuration. These are training-loss observations only — no downstream benchmark evaluation has been run on this model, so they should not be read as a quality claim.

SLURM jobStepsFirst lossFinal loss
451691487,5001.06400.1171

Limitations

  • —No benchmark evaluation has been run on this checkpoint. The only reported numbers are training-loss observations.
  • —Inherits the biases, knowledge cutoff and failure modes of the base model.
  • —Fine-tuned on a single instruction-following dataset; behaviour outside that distribution is untested.
  • —LoRA adapters were merged into the base weights, so the merged model cannot be detached from this fine-tune.

Reproducing

Trained by notebooks/xlam_function_calling_fastcontext-4b-sft_unsloth.ipynb, executed non-interactively with papermill on a SLURM H100 partition (Unsloth + TRL, LoRA).


Card generated from the training run's own configuration and logs by `scripts/generate_hub_model_card.py`.