# Fugu Ultra

> Fugu Ultra is Sakana AI's flagship orchestration model. Rather than answering directly, it coordinates a deep pool of expert agents and frontier models behind one OpenAI-compatible API, decomposing a task, dispatching sub-problems to the best available model, and synthesizing the result. It supports OpenAI-compatible Chat Completions and Responses APIs, including built-in tools such as web_search, and targets long-horizon, agentic, and research-grade workloads with a large context window.

**ID**: `sakana/fugu-ultra`  
**Creator**: sakana  
**Category**: text  
**Context**: 272K tokens  
**Pricing**: $5.00 / $30.00 per 1M · billed by your provider (BYOK)  
**Released**: 2026-06-15  
**Web page**: https://anyrouter.dev/model/sakana/fugu-ultra

**Input modalities**: text  
**Output modalities**: text  

**Capabilities**: chat, reasoning, agentic, function-calling, structured-output, streaming, web-search

**Aliases**: `sakana/fugu-ultra-v2`

## Usage

**Endpoint**: `POST https://anyrouter.dev/api/v1/chat/completions`

```bash
curl https://anyrouter.dev/api/v1/chat/completions \
  -H "Authorization: Bearer $ANYROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "sakana/fugu-ultra",
  "messages": [
    {
      "role": "user",
      "content": "Say hi in 3 words."
    }
  ]
}'
```

## Providers

| Provider | Input | Output |
| --- | --- | --- |
| sakana-byok | $5.00/M (list) | $30.00/M (list) |
| vercel-byok | $5.00/M (list) | $30.00/M (list) |

BYOK routes are billed by your own provider key — AnyRouter charges $0. Rates marked (list) are the provider's published list price.

## Source

- Upstream docs: https://console.sakana.ai/models