Instructions to use teng-pan/Agent-R2-4B with libraries, inference providers, notebooks, and local apps. Follow these links to get started.

Libraries

How to use teng-pan/Agent-R2-4B with Transformers:

# Use a pipeline as a high-level helper
from transformers import pipeline

pipe = pipeline("text-generation", model="teng-pan/Agent-R2-4B")
messages = [
    {"role": "user", "content": "Who are you?"},
]
pipe(messages)

# pip install -U transformers accelerate
# Load model directly
from transformers import AutoTokenizer, AutoModelForCausalLM

tokenizer = AutoTokenizer.from_pretrained("teng-pan/Agent-R2-4B")
model = AutoModelForCausalLM.from_pretrained("teng-pan/Agent-R2-4B", 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=256)
print(tokenizer.decode(outputs[0][inputs["input_ids"].shape[-1]:]))

Notebooks
Google Colab
Kaggle
Local Apps Settings

vLLM

How to use teng-pan/Agent-R2-4B with vLLM:

Install from pip and serve model

# Install vLLM from pip:
pip install vllm
# Start the vLLM server:
vllm serve "teng-pan/Agent-R2-4B"
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:8000/v1/chat/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "teng-pan/Agent-R2-4B",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Use Docker

docker model run hf.co/teng-pan/Agent-R2-4B

SGLang

How to use teng-pan/Agent-R2-4B with SGLang:

Install from pip and serve model

# Install SGLang from pip:
pip install sglang
# Start the SGLang server:
python3 -m sglang.launch_server \
    --model-path "teng-pan/Agent-R2-4B" \
    --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": "teng-pan/Agent-R2-4B",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Use Docker images

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 "teng-pan/Agent-R2-4B" \
        --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": "teng-pan/Agent-R2-4B",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Docker Model Runner
How to use teng-pan/Agent-R2-4B with Docker Model Runner:
```
docker model run hf.co/teng-pan/Agent-R2-4B
```

teng-pan commited on 5 days ago

Commit

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@@ -19,13 +19,6 @@ tags:
 It is the model introduced in *Agent-R²: Scaling Agents for Realistic Productivity Work via Real-Source Data Synthesis*.
-## Highlights
-- Trained on **4,000 task instances** distilled from 10,000 web-corpus candidates. Every instance pairs **real, multi-format attachments** with **fine-grained, deliverable-level rubrics** — no LLM-generated files and no hand-specified workflows.
-- Training recipe: **supervised fine-tuning (SFT)** followed by **rubric-based reinforcement learning**.
-- Surpasses **Qwen3-235B-A22B-Thinking-2507** on both evaluation benchmarks despite being ~59x smaller.
-- Reduces **shortcut behavior** — the tendency to emit a superficially plausible deliverable before grounding, constructing, or verifying it — and sustains longer exploration.
 ## Results
 | Benchmark | Agent-R²-4B | Qwen3-235B-A22B-Thinking-2507 |

 It is the model introduced in *Agent-R²: Scaling Agents for Realistic Productivity Work via Real-Source Data Synthesis*.
 ## Results
 | Benchmark | Agent-R²-4B | Qwen3-235B-A22B-Thinking-2507 |