Fugu Ultra v2

by Sakana

sakana/fugu-ultra-v2
Input
$7.00/1M tokens
Output
$42.00/1M tokens
Context
1Mtokens
Max output
128Ktokens
Knows to
August 2026
Released
11 Sep 2026

About

Fugu Ultra v2 is the higher-performance model in Sakana AI's Fugu family.

Pricing

Input$7.00per 1M prompt tokens
Output$42.00per 1M generated tokens, reasoning included
Cached input$0.70per 1M tokens read back from the prompt cache
Input over 272K$14.00the whole prompt is billed at this rate once it passes the threshold
Output over 272K$63.00applies to replies to those prompts
Web search$0.014per request that uses the provider’s built-in search

What a request costs

Typical requestEachPer 1,000
Short chat reply1,500 in · 400 out$0.027$27.30
Question over a long document40,000 in · 800 out$0.314$313.60
Agent tool step20,000 in · 1,200 out$0.190$190.40
Very long prompt (over 272K)340,000 in · 1,500 out$4.85$4,855

At the developer-API rate, before any provider promotion or prompt-cache saving. In the app, the model picker shows what a message costs on your plan before you send it.

Call it from code

OpenAI-compatible: point any OpenAI SDK at https://api.privateer.pro/v1 and set model. Keys are created in the app under Settings.

cURL
curl https://api.privateer.pro/v1/chat/completions \
  -H "Authorization: Bearer $PRIVATEER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "sakana/fugu-ultra-v2",
    "messages": [{ "role": "user", "content": "Hello" }]
  }'
Python
import os
from openai import OpenAI

client = OpenAI(
    base_url="https://api.privateer.pro/v1",
    api_key=os.environ["PRIVATEER_API_KEY"],
)
reply = client.chat.completions.create(
    model="sakana/fugu-ultra-v2",
    messages=[{"role": "user", "content": "Hello"}],
)
print(reply.choices[0].message.content)
JavaScript
import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://api.privateer.pro/v1",
  apiKey: process.env.PRIVATEER_API_KEY,
});
const reply = await client.chat.completions.create({
  model: "sakana/fugu-ultra-v2",
  messages: [{ role: "user", content: "Hello" }],
});
console.log(reply.choices[0].message.content);

Parameters this model accepts

include_reasoningreasoningreasoning_effortstructured_outputstool_choicetoolsweb_search_options

API reference → · How API billing works →

Prices are USD at the developer-API rate, as of 16 Oct 2026, rebuilt daily from the providers’ live catalogues. ← All models