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Sakana: Fugu Ultra v2

sakana/fugu-ultra-v2

Sakana: Fugu Ultra v2 is a 1,000,000-token model served on Composite at $6.25 per million tokens in and $37.5 per million tokens out.

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Specifications

Specifications and pricing as served by Composite
Model IDsakana/fugu-ultra-v2
Providercv11
Context window1,000,000 tokens
Acceptstext, image, file
Returnstext
Input price$6.25 per million tokens
Output price$37.5 per million tokens
Prompt cachingSupported — cached input is billed at the provider's cache rate, on credits and plans alike
Web search$0.0125 per result
ThinkingAlways on for this model
ModeratedNo
Cost on a monthly planAbout 70 plan credits per typical call (8k in, 1k out)
Routing endpoints2 (base plus 1 routing variant)

Measured on Composite

This model has not carried enough traffic on Composite yet to publish a success rate, a latency figure or a traffic rank. The numbers appear here once it has.

Routing variants

The same model behind 1 alternative endpoint. Call the id directly to pin a route; the base id above picks for you.

RouteModel IDProviderPrice
cheapThink sakana/fugu-ultra-v2:cheapThink cv11 $6.25 per million tokens input · $37.5 per million tokens output

Pricing

$6.25 per million tokens input · $37.5 per million tokens output

Credits pay the provider’s price plus 25%; cache hits cost less.

On a monthly plan, a typical call (8k tokens in, 1k out) uses about 70 plan credits, at the provider's own price.

Provider

cv11

Roleplay fit

This model is available on Composite alongside dozens of others from other labs, so it is easy to compare against similar options.

Context behavior

With a 1,000,000-token context window, it can hold a long-running roleplay or a full lorebook in memory without losing earlier plot details, so it suits multi-session campaigns and character cards with heavy backstory.

Cost for regular use

It is priced for quality-sensitive scenes, where writing quality and instruction-following matter more than minimizing per-message cost.

From the provider

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...

Supplied by cv11, not written by Composite.