SASakana AI/ Fugu
Fugu Ultra
sakana/fugu/ultra
Quality-first multi-agent model for hard research, analysis, and competitions
Released
2026-06-15
Context window
1M
Max output
128K
Weights
Closed
Modalities
Input
TextImage
Output
Text
Identity
- Version
- fugu-ultra
- Aliases
- Fugu Ultra
Resources
Providers
| Provider | Provider model ID | Protocol | Context | Max output | Input | Output | Capabilities | Notes | Pricing | Streaming |
|---|---|---|---|---|---|---|---|---|---|---|
| LLM Gateway | fugu-ultra | openai_chat | 1M | 128K | TextImage | Text | AttachmentsReasoningTool callStructured | - | input $5/M · cache read $0.5/M output $30/M | Yes |
| Sakana AI | fugu-ultra | custom | 1M | 128K | TextImage | Text | AttachmentsReasoningTool callStructured | - | input $5/M · cache read $0.5/M output $30/M | Yes |
| Pioneer | sakana/fugu-ultra | openai_chat | 1M | 128K | TextImage | Text | AttachmentsReasoningTool callStructured | Interleaved output | input $5/M · cache read $0.5/M output $30/M · cache write $5/M | Yes |
| Merge Gateway | sakana/fugu-ultra | openai_chat | 1M | 128K | TextImage | Text | AttachmentsReasoningTool callStructured | - | input $5/M · cache read $0.5/M output $30/M | Yes |
| Vercel AI Gateway | sakana/fugu-ultra | openai_chat | 1M | 128K | TextImage | Text | AttachmentsReasoningTool callStructured | - | input $5/M · cache read $0.5/M output $30/M | Yes |
| OpenRouter | sakana/fugu-ultra | openai_chat | 1M | 128K | TextImage | Text | AttachmentsReasoningTool callStructured | Default reasoning: xhigh | input $5/M · cache read $0.5/M output $30/M | Yes |
| NanoGPT | sakana/fugu-ultra | openai_chat | 1M | 128K | TextImage | Text | AttachmentsReasoningTool callStructured | - | input $5.25/M · cache read $0.525/M output $31.5/M | Yes |
Capabilities
AttachmentsReasoningTool callStructured
Official price
input $5/M · cache read $0.5/M
output $30/M