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Model spotlight

Fugu Ultra

Quality-first multi-agent model for hard research, analysis, and competitions

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Core capabilities

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Fugu Ultra FAQ

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Fugu Ultra

sakana/fugu-ultra

Quality-first multi-agent model for hard research, analysis, and competitions

Core specifications

Released
2026-06-15
Context window
1M
Max output
128K
Weights
Closed

Modalities

Input
ImageText
Output
Text

Identity

Version
fugu-ultra
Aliases
Fugu Ultra

Capabilities

AttachmentsReasoningStructuredTool call

Pricing

IN $5/M
OUT $30/M
Read $0.5/M

Capabilities and fit

Model summary

Quality-first multi-agent model for hard research, analysis, and competitions

Text
AttachmentsReasoningStructuredTool call
Output
Text
Capabilities
4
Catalog updated
2026-06-22T00:00:00.000Z
Status

Benchmark results

BenchmarkTypeScore / rankEvaluated
SWE Bench ProCoding73.72026-08-05T03:37:00.044Z
Terminal Bench 2.1Coding82.12026-08-05T03:37:00.044Z
LiveCodeBenchCoding93.22026-08-05T03:37:00.044Z
LiveCodeBench ProCoding90.82026-08-05T03:37:00.044Z
Humanity’s Last ExamGeneral502026-08-05T03:37:00.044Z
CharXiv ReasoningReasoning86.62026-08-05T03:37:00.044Z
GPQA DiamondReasoning95.52026-08-05T03:37:00.044Z
SciCodeCoding58.72026-08-05T03:37:00.044Z
τ3 BankingGeneral20.62026-08-05T03:37:00.044Z
Long Context ReasoningReasoning73.32026-08-05T03:37:00.044Z
MRCRv2General93.62026-08-05T03:37:00.044Z
CTI-REALMGeneral69.42026-08-05T03:37:00.044Z

Provider coverage

ProviderInputOutputPricing
LLM Gateway
IN $5/M
OUT $30/M
Read $0.5/M
Sakana AI
IN $5/M
OUT $30/M
Read $0.5/M
Pioneer
IN $5/M
OUT $30/M
Read $0.5/M
Merge Gateway
IN $5/M
OUT $30/M
Read $0.5/M
Vercel AI Gateway
IN $5/M
OUT $30/M
Read $0.5/M
OpenRouter
IN $5/M
OUT $30/M
Read $0.5/M
NanoGPT
Fugu Ultra
IN $5/M
OUT $30/M
Read $0.5/M

FAQ