Fugu Ultraon Krater.ai

Fugu Ultra is the higher-performance model in Sakana AI's Fugu family. Rather than a single monolithic model, Fugu is a learned multi-agent orchestration system: a language model trained to route

Released June 24, 2026

Specifications

Fugu Ultra at a glance

Context

1M tokens

Max output

128K tokens

Input

Text, Image

Output

Text

Input price

$5.00 / 1M

Output price

$30.00 / 1M

Krater rank

#85

Image inputTool callingStructured outputsReasoning support

Capabilities

What it is good at

Catalog capabilities

  • Accepts image input
  • Generates text responses
  • Supports tool calling
  • Supports structured outputs

Good for

Image understandingLong documentsUse with toolsStructured responsesDeep analysis

FAQ

Questions about Fugu Ultra

Clear answers based on the model catalog and Krater access.

Fugu Ultra supports a context window of 1,000,000 tokens.

Use Fugu Ultra in your API

Connect with Krater's unified API.

API access

Ready to use Fugu Ultra?

Access leading models in one focused workspace.