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SASakana AI/ Fugu

Fugu Ultra

sakana/fugu-ultra

Quality-first multi-agent model for hard research, analysis, and competitions

Model information

Released
2026-06-15
Context window
1M
Max output
128K
Weights
Closed

Modalities

Input
ImageText
Output
Text

Identity

Version
fugu-ultra
Aliases
Fugu Ultra

Capabilities

AttachmentsReasoningStructuredTool call

Official price

input $5/M · output $30/M
cache read $0.5/M

Providers

ProviderProvider model IDProtocolContextMax outputInputOutputCapabilitiesNotesPricingStreaming
LLM Gatewayfugu-ultraopenai_chat1M128K
AttachmentsReasoningTool callTemperature
-
input $5/M · output $30/M
cache read $0.5/M
Yes
Sakana AIfugu-ultracustom1M128K
AttachmentsReasoningTool callStructured
-
input $5/M · output $30/M
cache read $0.5/M
Yes
Pioneersakana/fugu-ultraopenai_chat1M128K
AttachmentsReasoningTool callStructured
-
input $5/M · output $30/M
cache read $0.5/M · cache write $5/M
Yes
Merge Gatewaysakana/fugu-ultraopenai_chat1M128K
AttachmentsReasoningTool call
-
input $5/M · output $30/M
cache read $0.5/M
Yes
Vercel AI Gatewaysakana/fugu-ultraopenai_chat1M128K
AttachmentsReasoningTool callStructuredTemperature
-
input $5/M · output $30/M
cache read $0.5/M
Yes
OpenRoutersakana/fugu-ultraopenai_chat1M128K
AttachmentsReasoningTool callStructured
Reasoning levels: max, xhigh, high, Default reasoning: xhigh, Reasoning required
input $5/M · output $30/M
cache read $0.5/M
Yes
NanoGPTsakana/fugu-ultraopenai_chat1M128K
AttachmentsReasoningTool callStructured
-
input $5.25/M · output $31.5/M
cache read $0.525/M
Yes

FAQ