Model comparison

Laguna S 2.1 vs Nemotron 3 Ultra

Data verified July 21, 2026

Head-to-head evidence from 3 shared benchmark results across 2 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.

Laguna S 2.1

Poolside

N/A

No comparison

Nemotron 3 Ultra

NVIDIA

N/A

2 category wins0 category wins

Evidence parity. Laguna S 2.1 and Nemotron 3 Ultra share 3 comparable benchmark results. 2 of 8 categories are comparable. 3 results are unique to Laguna S 2.1; 35 to Nemotron 3 Ultra.

Updated July 21, 2026

Shared results: 3
Laguna S 2.1 only: 3
Nemotron 3 Ultra only: 35
Comparable categories: 2 / 8

Treat this as a split decision. Laguna S 2.1 makes more sense if agentic is the priority; Nemotron 3 Ultra is the better fit if you want the cheaper token bill.

Confidence note. This is a partial-evidence comparison with 3 shared benchmark results across 2 evidence categories; 2 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.

Why this result

Laguna S 2.1 and Nemotron 3 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.

Laguna S 2.1 is also the more expensive model on tokens at $0.10 input / $0.20 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Nemotron 3 Ultra. That is roughly Infinityx on output cost alone.

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 Laguna S 2.1 and Nemotron 3 Ultra
Category	Laguna S 2.1	Δ	Nemotron 3 Ultra
Agentic	Laguna S 2.170.2	Margin← 18.9	Nemotron 3 Ultra51.3
Coding	Laguna S 2.159.4	Margin← 1.1	Nemotron 3 Ultra58.3
Reasoning	Laguna S 2.1Not measured	MarginNo overlap	Nemotron 3 Ultra61.9
Knowledge	Laguna S 2.1Not measured	MarginNo overlap	Nemotron 3 Ultra53.8
Multilingual	Laguna S 2.1Not measured	MarginNo overlap	Nemotron 3 Ultra83.0
Inst. Following	Laguna S 2.1Not measured	MarginNo overlap	Nemotron 3 Ultra81.7

Decisive benchmark drivers

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

A · Laguna S 2.1B · Nemotron 3 Ultra

Terminal-Bench 2.0
Agentic
Source ↗
A 70.2%B 56.4%
Winner: Laguna S 2.1Δ 13.8
Terminal-Bench 2.0: Laguna S 2.1 scored 70.2%; Nemotron 3 Ultra scored 56.4%. Laguna S 2.1 wins this benchmark.

Operational comparison

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

Metric	Laguna S 2.1	Nemotron 3 Ultra	Comparison
Input / output priceUSD per 1M tokens	Laguna S 2.1$0.1 input / $0.2 output	Nemotron 3 Ultra$0 input / $0 output	Nemotron 3 Ultra has the lower combined listed price.
Generation speedtokens per second	Laguna S 2.1Not available	Nemotron 3 UltraNot available	A complete speed comparison is not available.
First-answer latencyseconds to first token	Laguna S 2.1Not available	Nemotron 3 UltraNot available	A complete latency comparison is not available.
Context windowmaximum listed tokens	Laguna S 2.11M	Nemotron 3 Ultra1M	Listed context windows are equal.

Benchmark Deep Dive

AgenticLaguna S 2.1 wins

14 benchmarks

Benchmark	Laguna S 2.1	Nemotron 3 Ultra	Result
Terminal-Bench 2.0Source	70.2%	56.4%	Laguna S 2.1 leads
Toolathlon-VerifiedSource	49.7%	—	Not comparable
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

CodingLaguna S 2.1 wins

8 benchmarks

Benchmark	Laguna S 2.1	Nemotron 3 Ultra	Result
Terminal-Bench 2.0Source	70.2%	56.4%	Laguna S 2.1 leads
SWE MultilingualSource	78.5%	67.7%	Laguna S 2.1 leads
SWE-bench ProSource	59.4%	—	Not comparable
deepSweSource	40.4%	—	Not comparable
SWE-bench VerifiedSource	—	71.9%	Not comparable
SciCodeSource	—	44.6%	Not comparable
AA Coding IndexSource	—	49.3%	Not comparable
AA-SciCodeSource	—	39.9%	Not comparable

Reasoning

3 benchmarks

Benchmark	Laguna S 2.1	Nemotron 3 Ultra	Result
AA-LCRSource	—	67.0%	Not comparable
CritPtSource	—	3.1%	Not comparable
LongBench v2Source	—	61.9%	Not comparable

Knowledge

12 benchmarks

Benchmark	Laguna S 2.1	Nemotron 3 Ultra	Result
GPQASource	—	87%	Not comparable
GPQA-DSource	—	87.0%	Not comparable
HLESource	—	26.7%	Not comparable
HLE w/o toolsSource	—	26.7%	Not comparable
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

1 benchmarks

Benchmark	Laguna S 2.1	Nemotron 3 Ultra	Result
MMLU-ProXSource	—	83%	Not comparable

Multimodal

1 benchmarks

Benchmark	Laguna S 2.1	Nemotron 3 Ultra	Result
Design Arena WebsiteSource	—	1129	Not comparable

Inst. Following

2 benchmarks

Benchmark	Laguna S 2.1	Nemotron 3 Ultra	Result
IFBenchSource	—	81.7%	Not comparable
AA-IFBenchSource	—	81.4%	Not comparable

Frequently Asked Questions (3)

Which is better, Laguna S 2.1 or Nemotron 3 Ultra?

Laguna S 2.1 and Nemotron 3 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 coding, Laguna S 2.1 or Nemotron 3 Ultra?

Laguna S 2.1 has the edge for coding in this comparison, averaging 59.4 versus 58.3. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, Laguna S 2.1 or Nemotron 3 Ultra?

Laguna S 2.1 has the edge for agentic tasks in this comparison, averaging 70.2 versus 51.3. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.

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Last updated: July 21, 2026

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