Try It — RefereAI x Cosmos Reason 2

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▶ Setup instructions

HuggingFace

vLLM

Edge 2B

GGUF

# Download model (~16GB)
huggingface-cli download nvidia/Cosmos-Reason2-8B \
  --local-dir ./models/cosmos-reason2-8b

# Start the server
python cosmos_server.py --model-path ./models/cosmos-reason2-8b
# Serves at http://localhost:8000/v1

pip install vllm

vllm serve nvidia/Cosmos-Reason2-8B \
  --allowed-local-media-path "$(pwd)" \
  --max-model-len 16384 \
  --reasoning-parser qwen3 \
  --port 8000

# INT4 quantized 2B model — runs on 8GB VRAM
pip install vllm

vllm serve embedl/Cosmos-Reason2-2B-W4A16-Edge2 \
  --allowed-local-media-path "$(pwd)" \
  --max-model-len 8192 \
  --gpu-memory-utilization 0.75 \
  --port 8000

brew install llama.cpp

huggingface-cli download prithivMLmods/Cosmos-Reason2-8B-GGUF \
  Cosmos-Reason2-8B.Q8_0.gguf \
  Cosmos-Reason2-8B.mmproj-q8_0.gguf \
  --local-dir ./models

# Note: GGUF uses llama-mtmd-cli directly,
# not an OpenAI-compatible server.
# Use demo.py with --endpoint for server-based options.

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