Sakana AI

Fugu Ultra v2

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

sakana/fugu-ultra-v2

Context

Output

128K

Released

2026-09-11

Knowledge cutoff

2026-08-28

Types

InputTextImagePDF

OutputText

Reasoning

Supported

Tool use

Supported

Structured output

Supported

Attachments

Supported

Open weights

—

Provider pricing

Kilo Gateway

InTextImagePDF

OutText

Price: $5.00 / $30.00
Context: 1M
Status: Stable

OpenRouter

InTextImagePDF

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

InTextImagePDF

OutText

Price: $6.88 / $41.26
Context: 1M
Status: Stable

Provider	Types	Price	Context	Status
Kilo Gateway	InTextImagePDF OutText	$5.00 / $30.00	1M	Stable
OpenRouter	InTextImagePDF OutText	$5.00 / $30.00	1M	Stable
Vercel AI Gateway	InTextImage OutText	$5.00 / $30.00	1M	Stable
AI/ML API	InTextImagePDF OutText	$6.88 / $41.26	1M	Stable

From the same lab

Fugu Max

sakana/fugu-max

Sakana Namazu

sakana/sakana-namazu

Fugu

sakana/fugu

Fugu Ultra

sakana/fugu-ultra