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Model comparison

Ornith-1.0-397B vs Sakana Fugu-Ultra

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.

Ornith-1.0-397B
DeepReinforce AI
N/A
No comparison
N/A
1 category wins1 category wins

Evidence parity. Ornith-1.0-397B and Sakana Fugu-Ultra share 3 comparable benchmark results. 2 of 8 categories are comparable. 4 results are unique to Ornith-1.0-397B; 8 to Sakana Fugu-Ultra.

Updated July 23, 2026
Shared results
3
Ornith-1.0-397B only
4
Sakana Fugu-Ultra only
8
Comparable categories
2 / 8

Treat this as a split decision. Ornith-1.0-397B makes more sense if coding is the priority; Sakana Fugu-Ultra is the better fit if agentic is the priority or you need the larger 1M context window.

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

Ornith-1.0-397B 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 gives you the larger context window at 1M, compared with 256K for Ornith-1.0-397B.

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 Ornith-1.0-397B and Sakana Fugu-Ultra
CategoryOrnith-1.0-397BΔSakana Fugu-Ultra
CodingOrnith-1.0-397B74.6Margin← 10.1Sakana Fugu-Ultra64.5
AgenticOrnith-1.0-397B77.5Margin→ 4.6Sakana Fugu-Ultra82.1
ReasoningOrnith-1.0-397BNot measuredMarginNo overlapSakana Fugu-Ultra93.6
KnowledgeOrnith-1.0-397BNot measuredMarginNo overlapSakana Fugu-Ultra95.5
MultimodalOrnith-1.0-397BNot measuredMarginNo overlapSakana Fugu-Ultra86.6

Decisive benchmark drivers

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

More
A · Ornith-1.0-397BB · Sakana Fugu-Ultra

  1. SWE-bench Pro

    Coding
    Source ↗
    A 62.2%B 73.7%
    Winner: Sakana Fugu-UltraΔ 11.5
    SWE-bench Pro: Ornith-1.0-397B scored 62.2%; Sakana Fugu-Ultra scored 73.7%. Sakana Fugu-Ultra wins this benchmark.

  2. Terminal-Bench 2.0

    Agentic
    Source ↗
    A 77.5%B 82.1%
    Winner: Sakana Fugu-UltraΔ 4.6
    Terminal-Bench 2.0: Ornith-1.0-397B scored 77.5%; Sakana Fugu-Ultra scored 82.1%. Sakana Fugu-Ultra wins this benchmark.

Operational comparison

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

MetricOrnith-1.0-397BSakana Fugu-UltraComparison
Input / output priceUSD per 1M tokensOrnith-1.0-397B$0 input / $0 outputSakana Fugu-UltraNot availableA complete price comparison is not available.
Generation speedtokens per secondOrnith-1.0-397BNot availableSakana Fugu-UltraNot availableA complete speed comparison is not available.
First-answer latencyseconds to first tokenOrnith-1.0-397BNot availableSakana Fugu-UltraNot availableA complete latency comparison is not available.
Context windowmaximum listed tokensOrnith-1.0-397B256KSakana Fugu-Ultra1MSakana Fugu-Ultra lists the larger context window.

Benchmark Deep Dive

AgenticSakana Fugu-Ultra wins
BenchmarkOrnith-1.0-397BSakana Fugu-UltraResult
Terminal-Bench 2.0Source 77.5%82.1%Sakana Fugu-Ultra leads
Claw-EvalSource 77.1%—Not comparable
CodingOrnith-1.0-397B wins
BenchmarkOrnith-1.0-397BSakana Fugu-UltraResult
SWE-bench VerifiedSource 82.4%—Not comparable
SWE-bench ProSource 62.2%73.7%Sakana Fugu-Ultra leads
SWE MultilingualSource 78.9%—Not comparable
NL2RepoSource 48.2%—Not comparable
Terminal-Bench 2.0Source 77.5%82.1%Sakana Fugu-Ultra leads
LiveCodeBench v6Source —93.2%Not comparable
LiveCodeBench ProSource —90.8%Not comparable
SciCodeSource —58.7%Not comparable
Reasoning
BenchmarkOrnith-1.0-397BSakana Fugu-UltraResult
MRCRv2Source —93.6%Not comparable
Knowledge
BenchmarkOrnith-1.0-397BSakana Fugu-UltraResult
GPQASource —95.5%Not comparable
GPQA-DSource —95.5%Not comparable
HLE w/o toolsSource —50%Not comparable
Multimodal
BenchmarkOrnith-1.0-397BSakana Fugu-UltraResult
CharXivSource —86.6%Not comparable
Frequently Asked Questions (3)

Which is better, Ornith-1.0-397B or Sakana Fugu-Ultra?

Ornith-1.0-397B 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 coding, Ornith-1.0-397B or Sakana Fugu-Ultra?

Ornith-1.0-397B has the edge for coding in this comparison, averaging 74.6 versus 64.5. Inside this category, SWE-bench Pro is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, Ornith-1.0-397B or Sakana Fugu-Ultra?

Sakana Fugu-Ultra has the edge for agentic tasks in this comparison, averaging 82.1 versus 77.5. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.

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Last updated: July 23, 2026

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