NVIDIA

Nemotron 3 Ultra 550B A55B

Largest Nemotron 3 model for maximum open-weight reasoning and agent accuracy

nvidia/nemotron-3-ultra-550b-a55b

Context

1M

Output

128K

Released

2026-06-04

Knowledge cutoff

—

Types

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OutputText

Reasoning

Supported

Tool use

Supported

Structured output

—

Attachments

—

Open weights

Supported

Provider pricing

Kilo Gateway
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Price
$0.40 / $1.76
Context
202.8K
Status
Stable
NanoGPT
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Price
$0.50 / $2.50
Context
1M
Status
Stable
Nvidia
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Price
$0.50 / $2.50
Context
1M
Status
Stable
CommandCode
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OutText
Price
$0.60 / $2.40
Context
1M
Status
Stable
OpenRouter
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OutText
Price
$0.60 / $2.40
Context
262.1K
Status
Stable
Together AI
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Price
$0.60 / $3.60
Context
512.3K
Status
Stable
Vercel AI Gateway
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OutText
Price
$0.60 / $2.40
Context
1M
Status
Stable

Benchmarks

  • SWE-Bench Verified

    70.7 · resolved

  • SWE-Bench Multilingual

    67.7 · resolve rate

  • Terminal-Bench

    56.4 · success rate

  • GPQA

    87 · accuracy

  • Humanity's Last Exam

    26.7 · accuracy

  • Humanity's Last Exam

    37.4 · accuracy

  • LiveCodeBench

    89 · pass@1

  • MMLU-Pro

    86.8 · accuracy

  • BrowseComp

    44.4 · accuracy

  • IFBench

    81.7 · accuracy

  • GDPval

    46.7 · wins or ties

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