Text model
Fugu Ultra
sakana/fugu-ultra
sakana/fugu-ultra is a language model from Sakana AI you can call on the OceanToken API at $5.00 per 1M input tokens and $30.00 per 1M output tokens, with a 1M-token context window and up to 128K output tokens; it supports reasoning, tool calling, image input.
At a glance
| Model ID | sakana/fugu-ultra |
|---|---|
| Type | Text |
| Publisher | Sakana AI |
| Context window | 1,000,000 tokens |
| Max output | 128,000 tokens |
| Input price | $5.00 per 1M tokens |
| Output price | $30.00 per 1M tokens |
| Cached input price | $0.50 per 1M tokens |
| Capabilities | reasoning, tool calling, image input |
| Endpoint | /v1/chat/completions, /v1/responses |
| API shape | OpenAI-compatible |
| In the catalog since | 2026-06-24 |
Call it
Base URL https://api.oceantoken.ai/v1, your OceanToken key as the bearer token, and the model ID above as model. The OpenAI SDKs work unchanged; see your first request.
curl https://api.oceantoken.ai/v1/chat/completions \
-H "Authorization: Bearer $OCEANTOKEN_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "sakana/fugu-ultra", "messages": [{"role": "user", "content": "Hello"}]}'
Compared with similar models
Text models on OceanToken closest to sakana/fugu-ultra in price. Every price is what you pay, in US dollars, with no platform fee on top.
| Model | Publisher | Context | Price (per 1M tokens) |
|---|---|---|---|
| Fugu Ultra | Sakana AI | 1,000,000 | $5.00 / $30.00 |
GPT-4 Turboopenai/gpt-4-turbo | OpenAI | 128K | $10.00 / $30.00 |
GPT-5.5openai/gpt-5.5 | OpenAI | 1.05M | $5.00 / $30.00 |
GPT Chat Latestopenai/gpt-chat-latest | OpenAI | 272K | $5.00 / $30.00 |
More from Sakana AI
- Fugu Max
sakana/fugu-max - Fugu Ultra V2
sakana/fugu-ultra-v2
All Sakana AI models on OceanToken
Use it
Create an account All models and prices
Prices and capabilities on this page were read from the live OceanToken catalog on 2026-10-18 (UTC), when the documentation was built. If a price has changed since, the console's Models page shows the current one.