How to Deploy InternVL3-2B with vLLM

# Create a working directory (choose your preferred location)

# Create virtual environment with Python 3.12
# Make sure you have Python 3.12 installed: sudo apt install python3.12 python3.12-venv
python3.12 -m venv venv

# Activate virtual environment
source venv/bin/activate

# Verify Python version (should be 3.12.x)
python --version

# Upgrade pip
pip install --upgrade pip

# Install vLLM (this takes ~5-10 minutes)
pip install vllm

# Make sure you're in your working directory and activate virtual environment
source venv/bin/activate

# Launch vLLM serve (full native context)
vllm serve OpenGVLab/InternVL3-2B \
  --trust-remote-code \
  --dtype bfloat16 \
  --max-model-len 16384 \
  --max-num-batched-tokens 16384 \
  --gpu-memory-utilization 0.9 \
  --port 8000

curl http://localhost:8000/v1/models

{
  "object": "list",
  "data": [{
    "id": "OpenGVLab/InternVL3-2B",
    "object": "model",
    "created": 1770107841,
    "owned_by": "vllm",
    "root": "OpenGVLab/InternVL3-2B",
    "parent": null,
    "max_model_len": 16384
  }]
}

curl http://localhost:8000/v1/completions \
  -H "Content-Type: application/json" \
  -d '{
    "model": "OpenGVLab/InternVL3-2B",
    "prompt": "Hello, how are you?",
    "max_tokens": 50
  }'

# Encode video to base64
VIDEO_BASE64=$(base64 -w 0 /path/to/your/video.mp4)

# Time the request and measure latency
time curl http://localhost:8000/v1/chat/completions \
  -H "Content-Type: application/json" \
  -d "{
    \"model\": \"OpenGVLab/InternVL3-2B\",
    \"messages\": [{
      \"role\": \"user\",
      \"content\": [
        {
          \"type\": \"video_url\",
          \"video_url\": {
            \"url\": \"data:video/mp4;base64,\$VIDEO_BASE64\"
          }
        },
        {
          \"type\": \"text\",
          \"text\": \"Describe the user actions in this video in a sequential list.\"}
      ]
    }],
    \"max_tokens\": 1024
  }"

Certainly. In the video, a man wearing a red jersey is standing on a soccer field.
He appears to be clapping his hands or gesturing with them while speaking, expressing his comments or opinions...