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NVIDIA Nemotron 3 Ultra 550B-A55B NVFP4

NVIDIA·Operational·Released 2026-06-04text
Context1,000k
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Benchmarks6

Benchmarks

Cited public sources · rank is exact-benchmark, apples-to-apples

LMArena Elo#20/621444.7 ↗
BrowseComp#14/1541.4% ↗
GPQA Diamond#28/7087.9% ↗
Humanity's Last Exam (no tools)#16/2926.1% ↗
SWE-bench Verified#30/4569.7% ↗
Terminal-Bench 2.1#16/1753.9% ↗

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vs GPT-6 Astravs GPT-5.6 Solvs GPT-5.6 Terravs GPT-5.6 Lunavs Claude Fable 5.1vs Claude Opus 5vs Claude Sonnet 5vs Claude Haiku 4.5

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Access NVIDIA Nemotron 3 Ultra 550B-A55B NVFP4 and every other model through one endpoint with automatic failover: Respan gateway.