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America’s top AI, Claude, was recently banned worldwide. Just days later, Japan launched Sakana Fugu, an AI that tops Claude in critical head-to-head challenges. This isn’t just a new AI; it’s a whole team working in sync, redefining what artificial intelligence can do.
How Fugu Reinvents AI With a Team Behind the Scenes
Unlike traditional AI systems that operate with a single brain, Japan’s Fugu functions as a manager orchestrating a team. Behind one login, it accesses multiple specialized models—ranging from closed systems like GPT, Gemini, and Claude to various open-source engines. When you submit a question, Fugu selects the right AI experts, sometimes three or more, lets them debate, fact-check each other, then presents you with a polished answer.
This collective approach means Fugu doesn’t rely on a single company’s technology, making it immune to abrupt bans or export restrictions—a crucial edge following Claude’s worldwide removal.
Getting Fugu Ready: Simplicity Beneath the Complexity
Setting up Fugu might seem intimidating, especially with a terminal window and code commands, but it boils down to just three steps. First, enter an API key, basically a password that confirms authorized access. Second, run an installation command that sets everything up automatically. Finally, launch Codeex, which serves as Fugu’s workspace—the desk where the brain gets busy. Despite this technical façade, the process is remarkably straightforward.
The Five Rounds That Put Fugu and Claude to the Test
Round One: Building a Personal AI Learning Roadmap
Given the exact prompt to create a single-file app for a personalized AI learning plan, Claude produced a clear, gentle user experience—asking questions step by step before building out a final flow. Fugu responded by presenting all questions upfront on one screen and instantly generated a clickable 90-day roadmap with live course links. Faster, equally polished, and more interactive, Fugu took the first point.
Round Two: Crafting a 2D Run-and-Gun Game
Both AIs produced functional, smooth games with minimal setup. Claude’s Jungle Strike and Fugu’s Jungle Steel were nearly indistinguishable in playability and responsiveness. This one was a draw, demonstrating parity when it comes to straightforward coding tasks.
Round Three: Design Critique and Landing Page Improvement
Claude created a minimal, attractive redesign of a landing page—clean and elegant. Fugu, however, started with an in-depth critique covering visual hierarchy, accessibility, color contrast, typography, and cognitive load before building an interactive landing page featuring customizable themes and a full, functional reservation flow. This comprehensive, professional-grade effort earned Japan a decisive round three win.
Round Four: Creating an Interactive Website for “One Wish Willow”
Claude delivered a charming, polished site with tactile sound effects and engaging visuals, winning on visual appeal and polish. Fugu’s site lacked the same finesse but compensated with clever, vibrant copywriting and sharp interactivity. The verdict here favored Claude’s visual excellence.
Round Five: Running an Equity Research War Room
This round showed Fugu’s true power. Commanded to analyze a real company—Reliance—the AI assembled a full team: business analyst, valuation expert, market bull, market bear, fact-checker, and judge. The team debated, fact-checked, and synthesized insights to produce an interactive dashboard with live financials, opposing investment cases, and a dynamic scenario lab that recalculates valuations in real-time. Completing what would take a human analyst days in mere minutes, Fugu sealed a clear win.
Why Fugu’s Multi-Model Team Beats Single-Brain AI
The Fugu system isn’t a lone intelligence; it’s a coordinated team of specialists that bring rigorous cross-checking and diverse perspectives to complex problems. This design makes it more reliable for multi-step reasoning and adaptable to various tasks simultaneously—advantages crucial in complicated workflows like equity research or detailed design critique.
Cost and Accessibility: Advanced but Affordable
Contrary to fears about expense, running these five rounds only cost a few dollars, with paid plans starting at $20 monthly. This affordability combined with Fugu’s decentralized architecture means it can avoid the fate that befell Claude and potentially serve a global market without disruption.
What This Means for The Future of AI
Fugu’s approach challenges the dominance of single-model AI by proving that a managed consortium of specialists delivers stronger, more versatile outcomes. Its resilience to bans reflects a crucial strategic shift at a time when governments are scrutinizing AI capabilities and controls. The real competition is no longer about the smartest AI alone, but about who can build the most robust, unshakable architecture—and Japan just raised the bar.
If you want to dive deeper, the exact prompts used for these tests—including the equity research war room—are publicly shared for anyone to try. This is just the beginning of a fresh rivalry in AI powered by teamwork rather than solitary brains.
