Editing Models with Task Arithmetic
Paper • 2212.04089 • Published • 8
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 "pmahdavi/Olmo-3-7B-Think-Math-Code" \
--host 0.0.0.0 \
--port 30000# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:30000/v1/completions" \
-H "Content-Type: application/json" \
--data '{
"model": "pmahdavi/Olmo-3-7B-Think-Math-Code",
"prompt": "Once upon a time,",
"max_tokens": 512,
"temperature": 0.5
}'This is a merge of pre-trained language models created using mergekit.
This model was merged using the Task Arithmetic merge method using allenai/Olmo-3-1025-7B as a base.
The following models were included in the merge:
The following YAML configuration was used to produce this model:
# Task arithmetic merge: Apply Math+Code task vectors to Think-SFT
#
# Mathematical formulation:
# output = Think-SFT + 0.5*(RL-Zero-Math - base) + 0.5*(RL-Zero-Code - base)
#
# This is achieved by treating Think-SFT as a model with weight=1.0:
# output = base + 1.0*(Think-SFT - base) + 0.5*(Math - base) + 0.5*(Code - base)
#
# Usage:
# modal run modal_merge.py --config examples/olmo-think-math-code.yaml --hf-repo pmahdavi/Olmo-3-7B-Think-Math-Code
merge_method: task_arithmetic
base_model: allenai/Olmo-3-1025-7B
models:
- model: allenai/Olmo-3-7B-Think-SFT
parameters:
weight: 1.0
- model: allenai/Olmo-3-7B-RL-Zero-Math
parameters:
weight: 0.5
- model: allenai/Olmo-3-7B-RL-Zero-Code
parameters:
weight: 0.5
dtype: bfloat16
Install from pip and serve model
# Install SGLang from pip: pip install sglang# Start the SGLang server: python3 -m sglang.launch_server \ --model-path "pmahdavi/Olmo-3-7B-Think-Math-Code" \ --host 0.0.0.0 \ --port 30000# Call the server using curl (OpenAI-compatible API): curl -X POST "http://localhost:30000/v1/completions" \ -H "Content-Type: application/json" \ --data '{ "model": "pmahdavi/Olmo-3-7B-Think-Math-Code", "prompt": "Once upon a time,", "max_tokens": 512, "temperature": 0.5 }'