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Ornith-1.5-35B-A3B

NVFP4 · sglang · 128K context · RTX PRO 6000 Blackwell · 96 GB

Ornith 1.5, a 35B mixture-of-experts with built-in MTP.

– tok/sdecode
– tok/sprefill
128Kcontext window
Earlier checkearlier
Run it

Follow the steps below to download and run this recipe. Omarchy Local AI lists the recipes it can launch on your hardware. The server then answers on http://localhost:8000/v1.

  1. 1 Download the weights
    hf download ornith-ai/Ornith-1.5-35B-A3B-NVFP4 \
      --revision 0f0b1b59b879ccde1353e6ebd0fb10c204d4c544
  2. 2 Start the server
    docker run --rm \
      --gpus all \
      -p 8000:30000 \
      --shm-size 16g \
      -e HF_HOME=/root/.cache/huggingface \
      -v ~/.cache/huggingface:/root/.cache/huggingface \
      --entrypoint /opt/sglang/bin/python \
      lmsysorg/sglang:dev-cu13@sha256:6cd4635214f279e0a43019f88e3120d407567640a58aa7dcc0085e3d91402cc4 \
      -m sglang.launch_server \
      --model-path ornith-ai/Ornith-1.5-35B-A3B-NVFP4 \
      --revision 0f0b1b59b879ccde1353e6ebd0fb10c204d4c544 \
      --tp 1 \
      --host 0.0.0.0 \
      --port 30000 \
      --context-length 131072 \
      --mem-fraction-static 0.87 \
      --attention-backend flashinfer \
      --kv-cache-dtype fp8_e4m3 \
      --max-running-requests 4 \
      --cuda-graph-max-bs-decode 4 \
      --enable-cache-report \
      --trust-remote-code \
      --reasoning-parser qwen3 \
      --tool-call-parser qwen3_coder \
      --moe-runner-backend flashinfer_cutlass
What it passed
✓ loadLoads and serves within an hour
✓ chatAnswers a plain question and stops on its own
– reasoningThinks separately and gets 17 × 23 right
– toolsCalls a tool with the right arguments and uses the result
– contextRecalls a code buried in a prompt that fills 85% of the window
– speedDecodes at 15 tok/s or more

Passed the older check (loads and chats); a full six-check run is pending.

Details
Weights
ornith-ai/Ornith-1.5-35B-A3B-NVFP4 @ 0f0b1b59b8 ›
Image
lmsysorg/sglang:dev-cu13@sha256:6cd4635214f279e0a43019f88e3120d407567640a58aa7dcc0085e3d91402cc4
Launch
sglang-ornith-1.5-35b-a3b-nvfp4-128k-v3 ›
Recipe file
registry/recipes/nvidia/rtx-pro-6000-blackwell-96gb/ornith-1.5-35b-a3b.sglang.128k.json ›
Model released
Aug 18, 2026
Tested
earlier acceptance