Sakana AI / sakana/fugu-ultra

Fugu Ultra - access through LLMTR

Fugu Ultra is Sakana AI's OpenAI-compatible multi-agent reasoning model. It uses a deeper expert-agent pool for hard coding, security analysis, scientific research, and long-context synthesis tasks.

Technical specifications

Canonical IDsakana/fugu-ultra
ProviderSakana AI
Context window1,000,000 tokens
OperationsCHAT_COMPLETIONS, RESPONSES
Modalitiestext, image

Pricing

A 6% platform margin applies to credit top-ups; model usage prices are not separately marked up.

OperationMetricUnitPrice
CHAT_COMPLETIONSINPUT_TEXTPER_1M_TOKENS$5.00
CHAT_COMPLETIONSCACHE_READPER_1M_TOKENS$0.500000
CHAT_COMPLETIONSOUTPUT_TEXTPER_1M_TOKENS$30.00
RESPONSESINPUT_TEXTPER_1M_TOKENS$5.00
RESPONSESCACHE_READPER_1M_TOKENS$0.500000
RESPONSESOUTPUT_TEXTPER_1M_TOKENS$30.00

Example usage

With existing OpenAI SDK flows, change only the base URL and model identifier.

curl https://llmtr.com/v1/chat/completions \
  -H "Authorization: Bearer llmtr-your_key" \
  -H "Content-Type: application/json" \
  -d '{"model":"sakana/fugu-ultra","messages":[{"role":"user","content":"Hello"}]}'

Related models