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Can I run this LLM?

Can a NVIDIA GB300 Grace Blackwell (288GB HBM + 480GB) run Ornith 1.5 35B-A3B (MoE)?

Ornith · MIT · estimated for a 288.0 GB machine at 4K context.

Yes — it runs great.

Runs great

Best fit: Ornith 1.5 35B-A3B (MoE) at FP16 · 71.1 GB weights · 266–399 tok/s on a NVIDIA GB300 Grace Blackwell (288GB HBM + 480GB).

Arena Text Overall · style-controlled

UnratedNo exact match

No reviewed exact Arena match

No reviewed exact model/configuration match in the Arena Text Overall style-controlled snapshot. No family or editorial score is substituted. Local quantization quality is unmeasured.

Snapshot published 2026-10-08 · snapshot imported 2026-10-11 UTC · validated last-good data · manual refresh

Arena leaderboard dataset · Arena / lmarena-ai, Arena Leaderboard Dataset (CC BY 4.0). Selected Text Overall style-controlled rows; field names adapted, ratings unchanged. · dataset CC BY 4.0 · revision e16f90232986

Total memory at 4K context
72.0 GB
Weights + KV cache + runtime overhead
Estimated generation
266–399 tok/s
Estimated first token
~0.1s

Every quantization on this machine

On small screens, each quant lists every metric below its name. On wider screens, scroll sideways for total memory, speed and fit. Keyboard: focus the table, then use the arrow keys. Quant names stay visible.

Ornith 1.5 35B-A3B (MoE) quantizations on NVIDIA GB300 Grace Blackwell (288GB HBM + 480GB), estimated at 4K context. Weights and total memory are shown separately.
QuantWeightsTotal memorySpeedFit
Q2_K13.1 GB14.0 GB342–512 tok/sRuns great
Q3_K_M16.7 GB17.6 GB336–503 tok/sRuns great
Q4_K_M21.9 GB22.8 GB328–491 tok/sRuns great
Q5_K_M25.5 GB26.4 GB322–483 tok/sRuns great
Q6_K30.5 GB31.4 GB315–472 tok/sRuns great
Q8_037.8 GB38.7 GB305–457 tok/sRuns great
FP1671.1 GB72.0 GB266–399 tok/sRuns great

Ran Ornith 1.5 35B-A3B (MoE) on a NVIDIA GB300 Grace Blackwell (288GB HBM + 480GB)? Add your real numbers →