How much does Fugu Ultra cost per million tokens?

Fugu Ultra costs $5 per million input tokens and $30 per million output tokens at list price, and $0.5 per million cached input tokens.

What is the context window of Fugu Ultra?

Fugu Ultra accepts up to 1,000,000 tokens of context and returns up to 128,000 output tokens.

How much do 1,000 chat messages cost with Fugu Ultra?

About $20.00, assuming 1,000 input + 500 output tokens per message.

Is there a cheaper alternative to Fugu Ultra?

In the same price range, OpenAI GPT-6.1 Sol Pro ($2 / $10), OpenAI GPT-6.1 Sol ($2 / $10), Anthropic Claude Sonnet 5.5 ($2 / $10) cost less per token. Quality differs: test on your own prompts.

Where can I buy Sakana API credits for less?

Discount credit books resell OpenRouter usage below face value within their depth, OpenRouter adds a 5.5% card fee, and Sakana sells its own credits at face value. The live table on this page ranks them for $100 of usage.

Sakana · live price

Fugu Ultra API pricing

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...

Frontier (blended $5+ per 1M)Tool callingReasoningimage input

Input: $5; per 1M tokens
Output: $30; per 1M tokens
Cached input: $0.5; per 1M tokens
Context: 1M; 128K max output

List price from OpenRouter, which passes Sakana's price through without markup. Refreshed hourly. Released June 24, 2026. Model id sakana/fugu-ultra.

What Fugu Ultra costs in practice

At list price, before any batch or caching discount.

1,000 chat messages

$20.00

1,000 input + 500 output tokens each

1,000 RAG questions

$55.00

8,000 input + 500 output tokens each

100 coding-agent steps

$21.00

30,000 input + 2,000 output tokens each, no caching

Fugu Ultra price history

No price change since we started tracking on 2026-10-01. We record prices daily; changes will show here.

Fugu Ultra price by host

One host serves this model through OpenRouter.

Sakana AI$5 in · $30 out · 1M ctx · 100.0% uptime 24h

Where to buy Sakana credits for less

Fugu Ultra costs the same per token everywhere it's sold through OpenRouter. What changes is the price of the credits. Live quotes for $100 of usage:

#	Where you buy	You payYou pay for $100.00 of usage	vs list price	Price source
1	OrbioCardCheapest right now Credits from a discount book, plus a 5% platform fee and card processing, both included in the quote.	$85.10 incl. $2.60 card processing	-14.9%	live quote
2	smaaartCard Credits from a discount book, plus a 5% platform fee on face value. Card processing and taxes shown at checkout.	$95.00 + card processing and tax at checkout (not in this number)	-5.0%	live quote
3	Direct from the labCard Prepaid credits at face value (OpenAI, Anthropic, Google…). Taxes may apply.	$100.00 no top-up fee	list price	face value
4	OpenRouterCrypto 5% on crypto purchases. No markup on model prices.	$105.00 fees included	+5.0%	published fee
5	OpenRouterCard 5.5% on card purchases, $0.80 minimum. No markup on model prices.	$105.50 fees included	+5.5%	published fee

Disclosure: this site is run by the team behind smaaart, one of the options compared. Tables are ranked by price only, from live quotes and published fees, including when smaaart isn't first. How we compare

Fugu Ultra cost calculator

Enter your monthly tokens to price your own usage.

Model$5.00 in / $30.00 out per 1M tokens · list price, liveInput tokens / month (millions)Output tokens / month (millions)

Usage at list price$550.00/ month

Cheaper alternatives to Fugu Ultra

Other labs' models in the same price range or the one below, cheaper per token.

Model	Input / 1M	Output / 1M	Blended 3:1	Context
OpenAI: GPT-6.1 Sol Pro	$2	$10	$4	1.1M
OpenAI: GPT-6.1 Sol	$2	$10	$4	1.1M
Anthropic: Claude Sonnet 5.5	$2	$10	$4	1M
Z.ai: GLM 5.3 Prime	$2.80	$8.80	$4.30	1M
Qwen: Qwen3.8 Max Prime	$4	$12	$6	1M
OpenAI: GPT-6 Sol Pro	$2	$10	$4	1.1M

Other Sakana models

Model	Input / 1M	Output / 1M	Blended 3:1	Context
Sakana Namazu	$0.95	$4	$1.71	262K
Fugu Max	$2	$6	$3	1M
Fugu Ultra v2	$5	$30	$11.25	1M

All Sakana API prices