How to use from
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 "HerrHruby/Qwen3.5-4B-TMax-CISPO" \
    --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": "HerrHruby/Qwen3.5-4B-TMax-CISPO",
		"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 "HerrHruby/Qwen3.5-4B-TMax-CISPO" \
        --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": "HerrHruby/Qwen3.5-4B-TMax-CISPO",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'
Quick Links

Qwen3.5-4B-TMax-CISPO

Qwen3.5-4B fine-tuned with CISPO (Clipped IS-weight Policy Optimization) on the TMax-15K terminal-agent RL environment, using a fully-asynchronous rollout/trainer setup (verl).

Training

  • Base model: Qwen/Qwen3.5-4B
  • Algorithm: CISPO (rollout-anchored), clip high 0.28 / low 10
  • Sampling: temperature 1.0, top_p 1.0, group size 16
  • Data: TMax-15K, text-only short/moderate complexity split (AppTainer-compatible allowlist)
  • Agent: terminal_echo_tool_agent (Terminus-2 command interface)
  • Precision: fp32 generation/LM head + fused chunked cross-entropy
  • Exported from trainer checkpoint (global_step 51).

Intended use

Research checkpoint for terminal/agentic RL. Not instruction-tuned for general chat.

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