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Fugu Ultra v2 🧩 Multi-Agent

by Sakana AI · Text & Chat · Code · AI Agents

Multi-agent orchestration flagship · DeepSWE 74.3 (edges GPT-6 Astra) · Chartography 48.3 · best-or-tied on 5/8 benchmarks · 1M context.

97/100AIVerso score
#6 of 54in Text & Chat
$5/$30 per 1M tokensStarting price
NoFree tier
Try Fugu Ultra v2 →Compare with alternatives →

What is Fugu Ultra v2?

Fugu Ultra v2 is Sakana AI’s orchestration model, which coordinates several AI agents to solve complex tasks. It is offered through an API with a 1M-token context.

Best for

Fugu Ultra v2 pricing

Fugu Ultra v2 has no free tier. Price: $5/$30 per 1M tokens.

Plans & prices

Looking for something cheaper? Gemini 4 Carbon by Google costs $2/$10 per 1M tokens (API, until Nov 30).

Prices as published by Sakana AI. This page was last updated on November 13, 2026; prices and plans change often, so check the provider’s pricing page before you buy.

Check current Fugu Ultra v2 prices →

At a glance

ProviderSakana AI
CategoryText & Chat, Code, AI Agents
Starting price$5/$30 per 1M tokens
Free tierNo
API accessYes
Open sourceNo
Context window1M tokens
Mobile appNo

Key facts

Capability ratings

Math & Logice.g. AIME, MATH-500
94
Programminge.g. SWE-bench, LiveCodeBench
93
Reasoninge.g. GPQA, ARC
96
Knowledgee.g. MMLU-Pro
92
Long Contexte.g. MRCR, needle tests
95
Instruction Followinge.g. IFEval
95
Agent Capabilitye.g. Terminal-Bench, tool use
97

AIVerso capability ratings (0–100), an editorial summary informed by public benchmark results. Higher is better.

Features

✗ Image generation
✗ Video generation
✗ Native audio model
✓ Web search
✗ Voice mode (app)
✓ PDF analysis

Strengths

Top-tier AIVerso score (97/100)
Versatile — covers Text & Chat, Code, AI Agents
Large 1M token context window
Built-in web search
API access for developers

Limitations

No free tier
Closed model — cannot be self-hosted
No official mobile app

Best alternatives to Fugu Ultra v2

Claude Fable 5.2
Anthropic · $8/$40 per 1M tokens — Higher score (99 vs 97)
99
Gemini 4 Carbon
Google · $2/$10 per 1M tokens (API, until Nov 30) — Higher score (98 vs 97)
98
GPT-6 Astra
OpenAI · From $20/mo (Plus) — Higher score (98 vs 97)
98
Kimi K3.1 Pro
Moonshot AI · Free – API · free tier — Has a free tier
95
Muse Wonder 1.0
Meta · $4/$20 per 1M tokens (API) — Lower API price ($4/$20 per 1M tokens (API) vs $5/$30 per 1M tokens)
93

🔗 Comparisons & guides

Best AI Chatbot 2026: Top 7 AI Assistants RankedBest-of guide
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❓ Frequently Asked Questions

What is Fugu Ultra v2?

Fugu Ultra v2 is Sakana AI’s orchestration model, which coordinates several AI agents to solve complex tasks. It is offered through an API with a 1M-token context.

What is Fugu Ultra v2 best for?

Fugu Ultra v2 is a strong pick for: Complex multi-step agent workflows; Research and analysis pipelines; Developers experimenting with multi-agent systems.

How much does Fugu Ultra v2 cost?

Fugu Ultra v2 starts at $5/$30 per 1M tokens ($5/$30 per 1M). There is no free tier. A cheaper option from another provider is Gemini 4 Carbon ($2/$10 per 1M tokens (API, until Nov 30)).

Is Fugu Ultra v2 free?

No, Fugu Ultra v2 has no free tier. Pricing: $5/$30 per 1M tokens (details: $5/$30 per 1M).

What are the best alternatives to Fugu Ultra v2?

The highest-rated AI chatbots & text models from other providers on AIVerso are Claude Fable 5.2 (99/100), Gemini 4 Carbon (98/100), GPT-6 Astra (98/100).

Does Fugu Ultra v2 have an API?

Yes, Fugu Ultra v2 can be used via an API.

Is Fugu Ultra v2 open source?

No, Fugu Ultra v2 is a closed, proprietary model from Sakana AI.

How does AIVerso rate Fugu Ultra v2?

Fugu Ultra v2 scores 97/100 on AIVerso and ranks #6 of 54 in Text & Chat. Scores combine public benchmark results, features and pricing; commissions never influence them.

How we rate: Scores and capability ratings are based on public benchmarks, provider documentation, features and pricing — not on commission rates. Prices can change; check the provider's site before buying. Last updated: November 13, 2026.