SPADER: Step-wise Peer Advantage with Diversity-Aware Exploration Rewards for Multi-Answer Question Answering
Paper • 2606.00593 • Published
How to use KhanCold/llama3-8b-spader with Transformers:
# Use a pipeline as a high-level helper
from transformers import pipeline
pipe = pipeline("text-generation", model="KhanCold/llama3-8b-spader")
messages = [
{"role": "user", "content": "Who are you?"},
]
pipe(messages) # Load model directly
from transformers import AutoTokenizer, AutoModelForCausalLM
tokenizer = AutoTokenizer.from_pretrained("KhanCold/llama3-8b-spader")
model = AutoModelForCausalLM.from_pretrained("KhanCold/llama3-8b-spader", device_map="auto")
messages = [
{"role": "user", "content": "Who are you?"},
]
inputs = tokenizer.apply_chat_template(
messages,
add_generation_prompt=True,
tokenize=True,
return_dict=True,
return_tensors="pt",
).to(model.device)
outputs = model.generate(**inputs, max_new_tokens=40)
print(tokenizer.decode(outputs[0][inputs["input_ids"].shape[-1]:]))How to use KhanCold/llama3-8b-spader with vLLM:
# Install vLLM from pip:
pip install vllm
# Start the vLLM server:
vllm serve "KhanCold/llama3-8b-spader"
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:8000/v1/chat/completions" \
-H "Content-Type: application/json" \
--data '{
"model": "KhanCold/llama3-8b-spader",
"messages": [
{
"role": "user",
"content": "What is the capital of France?"
}
]
}'docker model run hf.co/KhanCold/llama3-8b-spader
How to use KhanCold/llama3-8b-spader with SGLang:
# Install SGLang from pip:
pip install sglang
# Start the SGLang server:
python3 -m sglang.launch_server \
--model-path "KhanCold/llama3-8b-spader" \
--host 0.0.0.0 \
--port 30000
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:30000/v1/chat/completions" \
-H "Content-Type: application/json" \
--data '{
"model": "KhanCold/llama3-8b-spader",
"messages": [
{
"role": "user",
"content": "What is the capital of France?"
}
]
}'docker run --gpus all \
--shm-size 32g \
-p 30000:30000 \
-v ~/.cache/huggingface:/root/.cache/huggingface \
--env "HF_TOKEN=<secret>" \
--ipc=host \
lmsysorg/sglang:latest \
python3 -m sglang.launch_server \
--model-path "KhanCold/llama3-8b-spader" \
--host 0.0.0.0 \
--port 30000
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:30000/v1/chat/completions" \
-H "Content-Type: application/json" \
--data '{
"model": "KhanCold/llama3-8b-spader",
"messages": [
{
"role": "user",
"content": "What is the capital of France?"
}
]
}'How to use KhanCold/llama3-8b-spader with Docker Model Runner:
docker model run hf.co/KhanCold/llama3-8b-spader
This repository contains the fine-tuned Llama-3.1-8B model checkpoint developed using the SPADER reinforcement learning framework, as presented in the paper SPADER: Step-wise Peer Advantage with Diversity-Aware Exploration Rewards for Multi-Answer Question Answering.
SPADER is a reinforcement learning framework designed for long-horizon tool-use agents in Multi-Answer QA. It introduces:
This checkpoint represents the Llama-3.1-8B-Instruct base model trained with SPADER.
@misc{shi2026spaderstepwisepeeradvantage,
title={SPADER: Step-wise Peer Advantage with Diversity-Aware Exploration Rewards for Multi-Answer Question Answering},
author={Qiming Shi and Zhaolu Kang and Yunfan Zhou and Di Weng and Yingcai Wu},
year={2026},
eprint={2606.00593},
archivePrefix={arXiv},
primaryClass={cs.CL},
url={https://arxiv.org/abs/2606.00593},
}
Base model
meta-llama/Llama-3.1-8B