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Model comparison

Nemotron 3 Ultra vs Sakana Fugu-Ultra

Data verified

Head-to-head evidence from 6 shared benchmark results across 3 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.

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No comparison
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0 category wins4 category wins

Evidence parity. Nemotron 3 Ultra and Sakana Fugu-Ultra share 6 comparable benchmark results. 4 of 8 categories are comparable. 32 results are unique to Nemotron 3 Ultra; 5 to Sakana Fugu-Ultra.

Updated July 23, 2026
Shared results
6
Nemotron 3 Ultra only
32
Sakana Fugu-Ultra only
5
Comparable categories
4 / 8

Treat this as a split decision. Nemotron 3 Ultra makes more sense if its workflow fits your team better; Sakana Fugu-Ultra is the better fit if knowledge is the priority.

Confidence note. This is a partial-evidence comparison with 6 shared benchmark results across 3 evidence categories; 4 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.

Why this result

Nemotron 3 Ultra and Sakana Fugu-Ultra finish on the same BenchAlign overall score, so this is less about a single winner and more about where the edge shows up. The BenchAlign headline says tie; the benchmark table is where the real choice happens.

Category breakdown

Exact category averages are shown below. Not measured means BenchLM does not have enough sourced public coverage for that model and category.

Category scores and score margins for Nemotron 3 Ultra and Sakana Fugu-Ultra
CategoryNemotron 3 UltraΔSakana Fugu-Ultra
KnowledgeNemotron 3 Ultra53.8Margin→ 41.7Sakana Fugu-Ultra95.5
ReasoningNemotron 3 Ultra61.9Margin→ 31.7Sakana Fugu-Ultra93.6
AgenticNemotron 3 Ultra51.3Margin→ 30.8Sakana Fugu-Ultra82.1
CodingNemotron 3 Ultra58.3Margin→ 6.2Sakana Fugu-Ultra64.5
MultilingualNemotron 3 Ultra83.0MarginNo overlapSakana Fugu-UltraNot measured
MultimodalNemotron 3 UltraNot measuredMarginNo overlapSakana Fugu-Ultra86.6
Inst. FollowingNemotron 3 Ultra81.7MarginNo overlapSakana Fugu-UltraNot measured

Decisive benchmark drivers

The largest measured benchmark gaps in this matchup, with exact reported values.

More
A · Nemotron 3 UltraB · Sakana Fugu-Ultra

  1. Terminal-Bench 2.0

    Agentic
    Source ↗
    A 56.4%B 82.1%
    Winner: Sakana Fugu-UltraΔ 25.7
    Terminal-Bench 2.0: Nemotron 3 Ultra scored 56.4%; Sakana Fugu-Ultra scored 82.1%. Sakana Fugu-Ultra wins this benchmark.

  2. SciCode

    Coding
    Source ↗
    A 44.6%B 58.7%
    Winner: Sakana Fugu-UltraΔ 14.1
    SciCode: Nemotron 3 Ultra scored 44.6%; Sakana Fugu-Ultra scored 58.7%. Sakana Fugu-Ultra wins this benchmark.

  3. GPQA

    Knowledge
    Source ↗
    A 87%B 95.5%
    Winner: Sakana Fugu-UltraΔ 8.5
    GPQA: Nemotron 3 Ultra scored 87%; Sakana Fugu-Ultra scored 95.5%. Sakana Fugu-Ultra wins this benchmark.

Operational comparison

Runtime and commercial metrics are compared only when both models have a complete sourced value.

MetricNemotron 3 UltraSakana Fugu-UltraComparison
Input / output priceUSD per 1M tokensNemotron 3 Ultra$0 input / $0 outputSakana Fugu-UltraNot availableA complete price comparison is not available.
Generation speedtokens per secondNemotron 3 UltraNot availableSakana Fugu-UltraNot availableA complete speed comparison is not available.
First-answer latencyseconds to first tokenNemotron 3 UltraNot availableSakana Fugu-UltraNot availableA complete latency comparison is not available.
Context windowmaximum listed tokensNemotron 3 Ultra1MSakana Fugu-Ultra1MListed context windows are equal.

Benchmark Deep Dive

AgenticSakana Fugu-Ultra wins
BenchmarkNemotron 3 UltraSakana Fugu-UltraResult
Terminal-Bench 2.0Source 56.4%82.1%Sakana Fugu-Ultra leads
PinchBenchSource 90.0%—Not comparable
BrowseCompSource 44.4%—Not comparable
τ³-bench resultsSource 70.9%—Not comparable
GDPval-AASource 33.2%—Not comparable
HLE w/ toolsSource 37.4%—Not comparable
AA Agentic IndexSource 27.4%—Not comparable
τ²-bench resultsSource 83.3%—Not comparable
GDPval-AASource 1164—Not comparable
AA BriefcaseSource 870—Not comparable
AA EnterpriseOps-GymSource 28.9%—Not comparable
AA Harvey LABSource 81.7%—Not comparable
terminalBenchHardSource 36.4%—Not comparable
CodingSakana Fugu-Ultra wins
BenchmarkNemotron 3 UltraSakana Fugu-UltraResult
SWE-bench VerifiedSource 71.9%—Not comparable
SWE MultilingualSource 67.7%—Not comparable
SciCodeSource 44.6%58.7%Sakana Fugu-Ultra leads
Terminal-Bench 2.0Source 56.4%82.1%Sakana Fugu-Ultra leads
AA Coding IndexSource 49.3%—Not comparable
AA-SciCodeSource 39.9%—Not comparable
SWE-bench ProSource —73.7%Not comparable
LiveCodeBench v6Source —93.2%Not comparable
LiveCodeBench ProSource —90.8%Not comparable
ReasoningSakana Fugu-Ultra wins
BenchmarkNemotron 3 UltraSakana Fugu-UltraResult
AA-LCRSource 67.0%—Not comparable
CritPtSource 3.1%—Not comparable
LongBench v2Source 61.9%—Not comparable
MRCRv2Source —93.6%Not comparable
KnowledgeSakana Fugu-Ultra wins
BenchmarkNemotron 3 UltraSakana Fugu-UltraResult
GPQASource 87%95.5%Sakana Fugu-Ultra leads
GPQA-DSource 87.0%95.5%Sakana Fugu-Ultra leads
HLESource 26.7%—Not comparable
HLE w/o toolsSource 26.7%50%Sakana Fugu-Ultra leads
MMLU-ProSource 86.8%—Not comparable
AA-Omniscience AccuracySource 21.6%—Not comparable
Artificial Analysis Intelligence IndexSource 37.8%—Not comparable
AA-GPQA DiamondSource 86.7%—Not comparable
AA-HLESource 26.6%—Not comparable
AA-Omniscience IndexSource -0.8%—Not comparable
AA-Omniscience Hallucination RateSource 28.5%—Not comparable
AA Openness IndexSource 83.3%—Not comparable
Multilingual
BenchmarkNemotron 3 UltraSakana Fugu-UltraResult
MMLU-ProXSource 83%—Not comparable
Multimodal
BenchmarkNemotron 3 UltraSakana Fugu-UltraResult
Design Arena WebsiteSource 1129—Not comparable
CharXivSource —86.6%Not comparable
Inst. Following
BenchmarkNemotron 3 UltraSakana Fugu-UltraResult
IFBenchSource 81.7%—Not comparable
AA-IFBenchSource 81.4%—Not comparable
Frequently Asked Questions (5)

Which is better, Nemotron 3 Ultra or Sakana Fugu-Ultra?

Nemotron 3 Ultra and Sakana Fugu-Ultra are tied on the BenchAlign overall score, so the right pick depends on which category matters most for your use case.

Which is better for knowledge tasks, Nemotron 3 Ultra or Sakana Fugu-Ultra?

Sakana Fugu-Ultra has the edge for knowledge tasks in this comparison, averaging 95.5 versus 53.8. Inside this category, HLE w/o tools is the benchmark that creates the most daylight between them.

Which is better for coding, Nemotron 3 Ultra or Sakana Fugu-Ultra?

Sakana Fugu-Ultra has the edge for coding in this comparison, averaging 64.5 versus 58.3. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.

Which is better for reasoning, Nemotron 3 Ultra or Sakana Fugu-Ultra?

Sakana Fugu-Ultra has the edge for reasoning in this comparison, averaging 93.6 versus 61.9. Nemotron 3 Ultra stays close enough that the answer can still flip depending on your workload.

Which is better for agentic tasks, Nemotron 3 Ultra or Sakana Fugu-Ultra?

Sakana Fugu-Ultra has the edge for agentic tasks in this comparison, averaging 82.1 versus 51.3. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.

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