PriceIndex
SA

Fugu Ultra v2

fugu-ultra-v2
APIProvider site

Fugu Ultra v2 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... Built by Sakana AI.

Prices updated

Input price

$5.00

per 1M tokens · Standard

Output price

$30

per 1M tokens · Standard

Input limit

1M

tokens

Output limit

128K

tokens

Input formats

TextImageVideoAudioPDF

Output formats

TextImageVideoAudioPDF
Compare

Fugu Ultra v2 price history

2 price records since 10/8/2026

Fugu Ultra v2 cost calculator

Input20M tokens
Output5M tokens

$250/month

Standard pricing

    Overview

    What is Fugu Ultra v2?

    Fugu Ultra v2 is a text & reasoning and vision model from Sakana AI. Fugu Ultra v2 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... Its 1M context window and $5.00 input price make it a candidate for quality-focused production applications.

    Image understandingDocument analysisContent workflowsClassification

    Rates

    Fugu Ultra v2 pricing

    Pricing is based on token usage. Provider-specific caching, batch, regional, and tool charges may affect the final cost.

    Input · Standard

    $5.00

    Per 1M tokens

    Cached input · Standard

    $0.50

    Per 1M tokens

    Capabilities

    Fugu Ultra v2 Tools

    Tools available when using Fugu Ultra v2 through supported provider APIs.

    Function calling

    Supported

    Structured outputs

    Supported

    JSON mode

    Not supported

    Reasoning

    Supported

    Built-in web search

    Supported

    Log probabilities

    Not supported

    Deterministic seed

    Not supported

    Parallel tool calls

    Not supported

    Prompt caching

    Supported

    Strengths and limitations

    Strengths

    • Priced at $5.00 input and $30 output per million tokens.
    • 1M context supports large documents, repositories and extended conversations.
    • Supports text & reasoning and vision workloads in one model.

    Limitations

    • Generated tokens cost 6× more than input tokens, which matters for verbose responses.
    • Large context capacity does not guarantee consistent retrieval across the entire prompt.
    • Arena Elo and MMLU-Pro are directional; test accuracy, latency and reliability on your own workload before committing.

    Arena Elo, MMLU-Pro and pricing figures are illustrative; validate current vendor terms before purchase.

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    Frequently asked questions about Fugu Ultra v2

    Fugu Ultra v2 is a text & reasoning and vision model from Sakana AI. Fugu Ultra v2 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...