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Sakana Fugu Ultra

Sakana AICurrentReleased Jun 22, 2026
Overall Score
Unranked
Arena Elo
N/A
Categories Ranked
0of 8
Price (1M tokens)
$5 in / $30 out
Speed
N/A
Context
1M
ProprietaryReasoning
Confidence
ultra

BenchLM is tracking Sakana Fugu Ultra, but this profile is currently excluded from the public leaderboard because it still lacks enough non-generated benchmark coverage to rank safely. Only non-generated public benchmark rows appear below.

Sakana Fugu Ultra is a proprietary model with a 1M token context window. It uses explicit chain-of-thought reasoning, which typically improves performance on math and complex reasoning tasks at the cost of higher latency and token usage.

Sakana Fugu Ultra sits inside the Sakana Fugu family alongside Sakana Fugu. This profile currently has 6 of 249 tracked benchmarks. BenchLM only exposes non-generated benchmark rows publicly, so missing categories stay blank until a sourced evaluation is available.

Ranking Distribution

Category rank across 3 benchmark categories — sorted by best rank

Category Performance

Scores across all benchmark categories (0-100 scale)

Category Breakdown

Agentic

100.0/ 100
Weight: 22%1 benchmark
Terminal-Bench 2.0BrowseCompOSWorld-VerifiedGAIATAU-benchWebArena

Coding

100.0/ 100
Weight: 20%3 benchmarks
SWE-bench VerifiedLiveCodeBenchSWE-bench ProSWE-RebenchSciCode

Reasoning

0.0/ 100
Weight: 17%0 benchmarks
MuSRLongBench v2MRCRv2ARC-AGI-2

Knowledge

100.0/ 100
Weight: 12%2 benchmarks
GPQASuperGPQAMMLU-ProHLEFrontierScienceSimpleQA

Math

0.0/ 100
Weight: 5%0 benchmarks
AIME 2025BRUMO 2025MATH-500FrontierMath

Multilingual

0.0/ 100
Weight: 7%0 benchmarks
MGSMMMLU-ProX

Multimodal

0.0/ 100
Weight: 12%0 benchmarks
MMMU-ProOfficeQA ProCharXivCharXiv w/o tools

Inst. Following

0.0/ 100
Weight: 5%0 benchmarks
IFEvalIFBench

Benchmark Details

Only benchmark rows with an attached exact-source record are shown here. Source-unverified manual rows and generated rows are hidden from model pages.

Sakana Fugu Family

Ultra

Frequently Asked Questions

How does Sakana Fugu Ultra perform overall in AI benchmarks?

Sakana Fugu Ultra has 6 published benchmark scores on BenchLM, but it does not yet have enough non-generated coverage to receive a global overall rank.

Is Sakana Fugu Ultra good for knowledge and understanding?

Sakana Fugu Ultra has visible benchmark coverage in knowledge and understanding, but BenchLM does not currently assign it a global category rank there.

Is Sakana Fugu Ultra good for coding and programming?

Sakana Fugu Ultra has visible benchmark coverage in coding and programming, but BenchLM does not currently assign it a global category rank there.

Is Sakana Fugu Ultra good for agentic tool use and computer tasks?

Sakana Fugu Ultra has visible benchmark coverage in agentic tool use and computer tasks, but BenchLM does not currently assign it a global category rank there.

Which sibling models are related to Sakana Fugu Ultra?

Sakana Fugu Ultra belongs to the Sakana Fugu family. Related variants on BenchLM include Sakana Fugu.

Does Sakana Fugu Ultra have full benchmark coverage on BenchLM?

Not yet. Sakana Fugu Ultra currently has 6 published benchmark scores out of the 249 benchmarks BenchLM tracks. BenchLM only exposes non-generated public benchmark rows, so missing categories stay blank until a sourced evaluation is available.

What is the context window size of Sakana Fugu Ultra?

Sakana Fugu Ultra has a context window of 1M, which determines how much text it can process in a single interaction.

Last updated: June 29, 2026 · Runtime metrics stay blank until BenchLM has a sourced snapshot.

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