Sakana AI

Fugu Ultra

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

sakana/fugu-ultra

Context

1M

Output

—

Released

2026-06-15

Knowledge cutoff

—

Types

InputTextImage
OutputText

Reasoning

Supported

Tool use

Supported

Structured output

Supported

Attachments

Supported

Open weights

—

Provider pricing

CommandCode
InTextImage
OutText
Price
$5.00 / $30.00
Context
1M
Status
Stable
Kilo Gateway
InTextImage
OutText
Price
$5.00 / $30.00
Context
1M
Status
Stable
LLM Gateway
InTextImage
OutText
Price
$5.00 / $30.00
Context
1M
Status
Stable
LLMTR
InTextImage
OutText
Price
$5.00 / $30.00
Context
1M
Status
Stable
Merge Gateway
InTextImage
OutText
Price
$5.00 / $30.00
Context
1M
Status
Stable
NanoGPT
InTextImage
OutText
Price
$5.00 / $30.00
Context
1M
Status
Stable
OpenRouter
InTextImage
OutText
Price
$5.00 / $30.00
Context
1M
Status
Stable
Pioneer
InTextImage
OutText
Price
$5.00 / $30.00
Context
1M
Status
Stable
Vercel AI Gateway
InTextImage
OutText
Price
$5.00 / $30.00
Context
1M
Status
Stable
AI/ML API
InTextImage
OutText
Price
$6.88 / $41.26
Context
1M
Status
Stable

Benchmarks

  • SWE Bench Pro

    73.7

  • Terminal Bench 2.1

    82.1

  • LiveCodeBench

    93.2

  • LiveCodeBench Pro

    90.8

  • Humanity’s Last Exam

    50

  • CharXiv Reasoning

    86.6

  • GPQA Diamond

    95.5

  • SciCode

    58.7

  • τ3 Banking

    20.6

  • Long Context Reasoning

    73.3

  • MRCRv2

    93.6

  • CTI-REALM

    69.4

From the same lab