✨ Why this build
- ~3.5× smaller than the bf16 source — fits comfortably in the Thor's 128 GB unified memory with
room for a large KV cache.
- Memory-bandwidth-optimal decode — NVFP4 moves ~0.55 bytes/param, roughly halving the bytes read
per token versus fp8, which is what sets decode speed on bandwidth-bound edge GPUs.
- Drop-in OpenAI / Anthropic serving via the
anima-vllm:thor-latest engine (vLLM 0.23 · PyTorch
2.11 · CUDA 13), or any vLLM build with NVFP4 (compressed-tensors) support.
🚀 Usage (vLLM)
vllm serve ilessio-aiflowlab/Qwen2.5-Coder-14B-Instruct-NVFP4-anima \ --trust-remote-code --attention-backend TRITON_ATTN \ --gpu-memory-utilization 0.70 --kv-cache-dtype fp8 --max-model-len 32768
from openai import OpenAIclient = OpenAI(base_url="http://localhost:8000/v1", api_key="x")r = client.chat.completions.create( model="ilessio-aiflowlab/Qwen2.5-Coder-14B-Instruct-NVFP4-anima", messages=[{"role": "user", "content": "Write a Python function to check if a string is a palindrome."}],)print(r.choices[0].message.content)
On a Jetson use --runtime nvidia (not --gpus all). The first request JIT-compiles attention (~30–60 s), then it's cached.
🔬 Quantization details
Table | |
|---|
| Method | NVFP4 post-training quantization (NVIDIA TensorRT Model Optimizer, NVFP4_DEFAULT_CFG) |
| Format | compressed-tensors (NVFP4 weights + per-group scales; fp8 KV-cache quant) |
| Calibration | 64 diverse prompts (reasoning, code, translation, general) |
| Produced on | NVIDIA Jetson AGX Thor · sm_110a · CUDA 13 · PyTorch 2.11 · via anima-thor-ui |
| Base model | Qwen/Qwen2.5-Coder-14B-Instruct |
🎯 Intended use & limitations
General-purpose inference on NVFP4-capable hardware (Blackwell and newer). Quality closely tracks the
base model; as with any 4-bit PTQ, expect small deviations on the most numerically sensitive tasks.
Inherits the base model's license, capabilities, biases, and intended-use terms — review the
base model card. This is an independent community quantization,
not affiliated with or endorsed by the base-model authors or NVIDIA.
📄 License & attribution
Released under apache-2.0 (subject to the base model's license). NVIDIA, CUDA, Jetson, and
Blackwell are trademarks of NVIDIA Corporation. Quantized by
RobotFlow Labs / AIFLOW LABS for the ANIMA edge-AI stack
using anima-thor-ui. ⭐ the repo if this is useful.