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Model comparison

LFM2.5-VL-450M vs Sakana Fugu-Ultra

Data verified

Head-to-head evidence from 1 shared benchmark result across 1 category. Overall scores shown here use the public BenchAlign v5 ranking lane.

N/A
No comparison
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0 category wins1 category wins

Evidence parity. LFM2.5-VL-450M and Sakana Fugu-Ultra share 1 comparable benchmark result. 1 of 8 categories are comparable. 6 results are unique to LFM2.5-VL-450M; 10 to Sakana Fugu-Ultra.

Updated July 23, 2026
Shared results
1
LFM2.5-VL-450M only
6
Sakana Fugu-Ultra only
10
Comparable categories
1 / 8

Treat this as a split decision. LFM2.5-VL-450M makes more sense if you would rather avoid the extra latency and token burn of a reasoning model; Sakana Fugu-Ultra is the better fit if knowledge is the priority or you need the larger 1M context window.

Confidence note. This is a partial-evidence comparison with 1 shared benchmark result across 1 evidence category; 1 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.

Why this result

LFM2.5-VL-450M 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.

Sakana Fugu-Ultra is the reasoning model in the pair, while LFM2.5-VL-450M is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use. Sakana Fugu-Ultra gives you the larger context window at 1M, compared with 128K for LFM2.5-VL-450M.

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 LFM2.5-VL-450M and Sakana Fugu-Ultra
CategoryLFM2.5-VL-450MΔSakana Fugu-Ultra
KnowledgeLFM2.5-VL-450M20.5Margin→ 75.0Sakana Fugu-Ultra95.5
AgenticLFM2.5-VL-450MNot measuredMarginNo overlapSakana Fugu-Ultra82.1
CodingLFM2.5-VL-450MNot measuredMarginNo overlapSakana Fugu-Ultra64.5
ReasoningLFM2.5-VL-450MNot measuredMarginNo overlapSakana Fugu-Ultra93.6
MultimodalLFM2.5-VL-450MNot measuredMarginNo overlapSakana Fugu-Ultra86.6
Inst. FollowingLFM2.5-VL-450M61.2MarginNo overlapSakana Fugu-UltraNot measured

Decisive benchmark drivers

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

More
A · LFM2.5-VL-450MB · Sakana Fugu-Ultra

  1. GPQA

    Knowledge
    Source ↗
    A 25.7%B 95.5%
    Winner: Sakana Fugu-UltraΔ 69.8
    GPQA: LFM2.5-VL-450M scored 25.7%; 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.

MetricLFM2.5-VL-450MSakana Fugu-UltraComparison
Input / output priceUSD per 1M tokensLFM2.5-VL-450M$0 input / $0 outputSakana Fugu-UltraNot availableA complete price comparison is not available.
Generation speedtokens per secondLFM2.5-VL-450MNot availableSakana Fugu-UltraNot availableA complete speed comparison is not available.
First-answer latencyseconds to first tokenLFM2.5-VL-450MNot availableSakana Fugu-UltraNot availableA complete latency comparison is not available.
Context windowmaximum listed tokensLFM2.5-VL-450M128KSakana Fugu-Ultra1MSakana Fugu-Ultra lists the larger context window.

Benchmark Deep Dive

Agentic
BenchmarkLFM2.5-VL-450MSakana Fugu-UltraResult
BFCL v4Source 21.1%—Not comparable
Terminal-Bench 2.0Source —82.1%Not comparable
Coding
BenchmarkLFM2.5-VL-450MSakana Fugu-UltraResult
SWE-bench ProSource —73.7%Not comparable
Terminal-Bench 2.0Source —82.1%Not comparable
LiveCodeBench v6Source —93.2%Not comparable
LiveCodeBench ProSource —90.8%Not comparable
SciCodeSource —58.7%Not comparable
Reasoning
BenchmarkLFM2.5-VL-450MSakana Fugu-UltraResult
MRCRv2Source —93.6%Not comparable
KnowledgeSakana Fugu-Ultra wins
BenchmarkLFM2.5-VL-450MSakana Fugu-UltraResult
GPQASource 25.7%95.5%Sakana Fugu-Ultra leads
MMLU-ProSource 19.3%—Not comparable
GPQA-DSource —95.5%Not comparable
HLE w/o toolsSource —50%Not comparable
Multimodal
BenchmarkLFM2.5-VL-450MSakana Fugu-UltraResult
MMMUSource 32.7%—Not comparable
RealWorldQASource 58.4%—Not comparable
CountBenchSource 73.3%—Not comparable
CharXivSource —86.6%Not comparable
Inst. Following
BenchmarkLFM2.5-VL-450MSakana Fugu-UltraResult
IFEvalSource 61.2%—Not comparable
Frequently Asked Questions (2)

Which is better, LFM2.5-VL-450M or Sakana Fugu-Ultra?

LFM2.5-VL-450M 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, LFM2.5-VL-450M or Sakana Fugu-Ultra?

Sakana Fugu-Ultra has the edge for knowledge tasks in this comparison, averaging 95.5 versus 20.5. Inside this category, GPQA is the benchmark that creates the most daylight between them.

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Last updated: July 23, 2026

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