S
Sakana: sakana/fugu-ultra
sakana/fugu-ultra
1M context128K outReasoningTools
Released Jun 24, 2026Updated Nov 5, 2026
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...
Inputs used for the providers' own purposes
At least one provider of this model uses your inputs for its own purposes, for example to train AI models. Do not enter personal data of third parties or sensitive data. You can object to this use at any time in your account settings or via "Manage consents" in the chat.
Read the privacy policyPricing
Input price
$5.00/ 1M tokens
Output price
$30.00/ 1M tokens
Compatible endpoints openaiVendor SakanaProvider Routerah
Uptime
Performance
Loading performance data...
Usage & Ranking
Loading usage...
Supported parameters
All providers = every upstream serving this model supports it. Some providers = depends on which upstream handles the request. Default = the value sent when you leave the parameter unset.
| Parameter | Providers | Default |
|---|---|---|
| include_reasoning | Some providers | - |
| reasoning | Some providers | - |
| reasoning_effort | Some providers | - |
| structured_outputs | Some providers | - |
| tool_choice | Some providers | - |
| tools | Some providers | - |
| web_search_options | Some providers | - |