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sakana/fugu-ultra

Fugu Ultra

Quality-first multi-agent model for hard research, analysis, and competitions

This model's cache

This model page returns the exact headers below. The page and /api/models/sakana--fugu-ultra share the model:sakana--fugu-ultra tag, so invalidation stays scoped to this model.

Cache key/models/sakana--fugu-ultra
Cache-Controlpublic, max-age=300, stale-while-revalidate=3600
Cache-Tagcatalogmodel:sakana--fugu-ultra

Workers Cache derives the key from this path/query, plus the Worker entrypoint and current Worker version.

export const Route = createFileRoute('/models/$modelSlug')({
  headers: () => ({
    'Cache-Control': 'public, max-age=300, stale-while-revalidate=3600',
    'Cache-Tag': 'catalog,model:sakana--fugu-ultra',
  }),
})

Invalidate this cache tag

await ctx.cache.purge({ tags: ['model:sakana--fugu-ultra'] })

Use this when one model changes and you do not want to evict the whole catalog.

FuguReasoningTool callingStructured outputAttachments
Released
Jun 15, 2026
Last updated
Jun 15, 2026
Context window
1M tokens
Max output
— tokens
Open weights
No
Family
Fugu

Starts at

$5

per 1M input tokens

Output

$30

Sellers

3

No cart or checkout in this MVP — pick a provider below and open their docs when you're ready to use it.

Capabilities & modalities
Reasoning
Tool calling
Structured output
Attachments
InputText, Image
OutputText
Provider shelf
Where to get Fugu Ultra

Sorted by lowest input price

ProviderInput / 1MOutput / 1MContext

Vercel AI Gateway

sakana/fugu-ultra

$5$301MDocs

Sakana AI

fugu-ultra

$5$301MDocs

OpenRouter

sakana/fugu-ultra

$5$301MDocs
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