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Model comparison

Laguna S 2.1 vs Sakana Fugu

Data verified

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
Sakana Fugu
Sakana AI
N/A
0 category wins2 category wins

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

Updated July 21, 2026
Shared results
3
Laguna S 2.1 only
3
Sakana Fugu only
8
Comparable categories
2 / 8

Treat this as a split decision. Laguna S 2.1 makes more sense if its workflow fits your team better; Sakana Fugu is the better fit if agentic is the priority.

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 Sakana Fugu 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 Laguna S 2.1 and Sakana Fugu
CategoryLaguna S 2.1ΔSakana Fugu
AgenticLaguna S 2.170.2Margin→ 10.0Sakana Fugu80.2
CodingLaguna S 2.159.4Margin→ 0.3Sakana Fugu59.7
ReasoningLaguna S 2.1Not measuredMarginNo overlapSakana Fugu86.6
KnowledgeLaguna S 2.1Not measuredMarginNo overlapSakana Fugu95.5
MultimodalLaguna S 2.1Not measuredMarginNo overlapSakana Fugu85.1

Decisive benchmark drivers

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

More
A · Laguna S 2.1B · Sakana Fugu

  1. Terminal-Bench 2.0

    Agentic
    Source ↗
    A 70.2%B 80.2%
    Winner: Sakana FuguΔ 10
    Terminal-Bench 2.0: Laguna S 2.1 scored 70.2%; Sakana Fugu scored 80.2%. Sakana Fugu wins this benchmark.

  2. SWE-bench Pro

    Coding
    Source ↗
    A 59.4%B 59%
    Winner: Laguna S 2.1Δ 0.4
    SWE-bench Pro: Laguna S 2.1 scored 59.4%; Sakana Fugu scored 59%. Laguna S 2.1 wins this benchmark.

Operational comparison

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

MetricLaguna S 2.1Sakana FuguComparison
Input / output priceUSD per 1M tokensLaguna S 2.1$0.1 input / $0.2 outputSakana FuguNot availableA complete price comparison is not available.
Generation speedtokens per secondLaguna S 2.1Not availableSakana FuguNot availableA complete speed comparison is not available.
First-answer latencyseconds to first tokenLaguna S 2.1Not availableSakana FuguNot availableA complete latency comparison is not available.
Context windowmaximum listed tokensLaguna S 2.11MSakana Fugu1MListed context windows are equal.

Benchmark Deep Dive

AgenticSakana Fugu wins
BenchmarkLaguna S 2.1Sakana FuguResult
Terminal-Bench 2.0Source 70.2%80.2%Sakana Fugu leads
Toolathlon-VerifiedSource 49.7%—Not comparable
CodingSakana Fugu wins
BenchmarkLaguna S 2.1Sakana FuguResult
Terminal-Bench 2.0Source 70.2%80.2%Sakana Fugu leads
SWE MultilingualSource 78.5%—Not comparable
SWE-bench ProSource 59.4%59%Laguna S 2.1 leads
deepSweSource 40.4%—Not comparable
LiveCodeBench v6Source —92.9%Not comparable
LiveCodeBench ProSource —87.8%Not comparable
SciCodeSource —60.1%Not comparable
Reasoning
BenchmarkLaguna S 2.1Sakana FuguResult
MRCRv2Source —86.6%Not comparable
Knowledge
BenchmarkLaguna S 2.1Sakana FuguResult
GPQASource —95.5%Not comparable
GPQA-DSource —95.5%Not comparable
HLE w/o toolsSource —47.2%Not comparable
Multimodal
BenchmarkLaguna S 2.1Sakana FuguResult
CharXivSource —85.1%Not comparable
Frequently Asked Questions (3)

Which is better, Laguna S 2.1 or Sakana Fugu?

Laguna S 2.1 and Sakana Fugu 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 Sakana Fugu?

Sakana Fugu has the edge for coding in this comparison, averaging 59.7 versus 59.4. 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 Sakana Fugu?

Sakana Fugu has the edge for agentic tasks in this comparison, averaging 80.2 versus 70.2. 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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