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Data checked September 25, 2026
Data checked September 25, 2026
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Data checked September 25, 2026 · Every number links to its sourceRSS · Source on GitHub
Leaderboard/Sakana AI
Sakana AI

Sakana AI · Fugu

Fugu Max

Closed weightsGenerally availableNewproprietary

Lower-cost Sakana AI Fugu orchestration tier (pool includes open models such as Nemotron) positioned against mid-price frontier models.

AA Intelligence
—
Input / output per 1M
$2.00/ $6.00
Output speed
—
Context window
—

Coding

  • Terminal-Bench 2.x#4 of 103
    89.5%vendorTerminal-Bench 2.1Sakana AI: Fugu Max benchmark chart ↗

    Leader: Claude Fable 5.1 at 91.4%

Reasoning and knowledge

  • Humanity’s Last Exam#20 of 147
    44.7%vendortext onlySakana AI: Fugu Max benchmark chart ↗

    Leader: Claude Opus 5.5 at 61.4%

  • GPQA Diamond#3 of 142
    95.5%vendorSakana AI: Fugu Max benchmark chart ↗

    Leader: GPT-6 Astra at 96.1%

Vision and long context

  • AA Long Context Reasoning#16 of 139
    83%vendorvendor-runSakana AI: Fugu Max benchmark chart ↗

    Leader: Kimi K3 at 88.7%

Other published results

ResultScoreReported bySource
DeepSWE70.8%vendorSakana AI: Fugu Max benchmark chart ↗
CharXiv Reasoning · without tools88.1%vendorSakana AI: Fugu Max benchmark chart ↗
Chartography37%vendorSakana AI: Fugu Max benchmark chart ↗
GDP.pdf26%vendorSakana AI: Fugu Max benchmark chart ↗
AutomationBench · public set49.5%vendorSakana AI: Fugu Max benchmark chart ↗
SWEFish (Sakana internal)62.5%vendorSakana AI: Fugu Max benchmark chart ↗

Specs

Released
September 11, 2026
Parameters
Undisclosed
Size class
Undisclosed
Input
text, image
Output
text
Context
Not published
Max output
Not published
Cached input
$0.25 / 1M
Blended 70/30
$3.20 / 1M
  • Price: Sakana AI console pricing ↗ Thinking tokens billed at output rate.

Will it fit your budget?

The planner prices this model against local hardware and other APIs for your workload.

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Compare with

  • Sakana AIFugu Ultra v2
  • Sakana AIFugu
  • OpenAIGPT-6 Astra52.7
  • OpenAIGPT-6 Sol47.5