Applied Research Engineer @SakanaAILabs ← PFN ← Sony
Interests: Agentic Foundation Models(Ex. Deep Research)/Physical AI/Matlantis/Trading
Kaggle 2x Grandmaster
Sakan Fugu release was really successful and we need to expand our capability quickly.
If you are interested to build unique collective intelligence product to go global market, please check and apply!
We’re Hiring: Software Engineer (R&D, Infrastructure and Platform Reliability) 🐟
https://t.co/WqsayV24hg
Sakana Fugu, our Multi-Agent System as a Model, launched publicly last month and is growing fast. We’re hiring an engineer to keep Fugu fast, dependable, and cost-efficient at scale.
・GKE, Vertex AI & Terraform on GCP
・AWS services equivalent to GCP services are also appreciated
・Monitoring, incident response & on-call
・High autonomy, working closely with R&D and Product
Based in Tokyo. If this sounds like you, we’d love to hear from you 🚀
Fugu is now available on OpenCode! ✨
When our team was developing Fugu’s multi-agent orchestration, OpenCode was our tool of choice to verify our models.
We share a core philosophy with the OpenCode team: the future of coding agents should be an open, collective ecosystem.
Excited to partner with @OpenRouter ⚡
Products like OpenRouter Fusion and Sakana Fugu have sparked a serious conversation about dependency and resilience in AI.
I believe this is just the start of a great architectural shift to come in AI development.
Introducing Sakana Fugu: A full multi-agent orchestration system accessible via a single model API.
Our ‘Fugu Ultra’ model matches the performance of Fable and Mythos, delivering frontier capability without the risk of export controls.
Try it: https://t.co/hhO6qTawgb 🐡
Human intelligence is fundamentally a collective intelligence. We solve complex problems by participating in a vast cultural network that builds upon ideas across generations.
I believe the strongest AI systems will become a collective intelligence, too.
Since we started Sakana AI, our core conviction has been that the most powerful AI systems will be collaborative ecosystems, not isolated monoliths. Evolution innovates under constraints, and the future belongs to systems that explicitly learn how to coordinate collective intelligence.
Today, we are taking a major step toward that future with the launch of Sakana Fugu.
Fugu dynamically orchestrates the world’s best models to tackle complex tasks. We are proving that a well-orchestrated pool of swappable agents can match restricted frontier models like Fable and Mythos.
But Fugu is about more than just performance. I believe that Orchestration Models are the next frontier, beyond bigger models.
Relying on a single company’s model for national infrastructure is a massive risk. As recent export controls have shown, access to top models can disappear overnight.
Collective intelligence is the practical hedge against this concentration of power. Fugu simply routes around vendor restrictions by relying on an entirely swappable agent pool.
I am incredibly proud of our Tokyo team for shipping this. By orchestrating the world’s models, we are delivering the resilient blueprint required for AI sovereignty.
Read our full vision and results here:
https://t.co/EONDdWx5Ld 🐡
Claude Fable 5 shows impressive performance on ALE-Bench!
A significant jump over Claude Opus 4.8, and it's now at the frontier.
This is the first time an Anthropic model has topped this benchmark.
https://t.co/espu4KdEXY
Member of Technical Staff (RSI Lab)
https://t.co/ptU2Xh4aO1
If you are a visionary builder ready to move to Tokyo and engineer the engine of recursive discovery, we invite you to apply.
Building AI that Builds AI: Introducing the Sakana AI RSI Lab 🚀
https://t.co/AskX3J5oEJ
Today, we are announcing the Sakana AI Recursive Self-Improvement (RSI) Lab: a dedicated research group in Tokyo tasked with redesigning the AI development process itself using AI.
While the industry increasingly speculates about the theoretical potential of self-improving AI, we’ve spent the last two years actively laying the foundations to make it a reality:
▪ LLM²: AI models automating research to invent better preference optimization algorithms.
▪ Darwin Gödel Machine: Agents autonomously rewriting their own codebase to double software-engineering performance.
▪ ShinkaEvolve: Hyper-sample-efficient program evolution that builds novel loss functions for MoE models.
▪ ALE-Agent: Reinforcement agents outperforming hundreds of human experts via self-learning.
▪ Digital Red Queen: Open-ended adversarial coevolution laying the groundwork for RSI in cybersecurity.
▪ The AI Scientist: Towards end-to-end automation of AI research, recently published in Nature.
Now, we are unifying these breakthroughs. The Sakana AI RSI Lab is officially tasked with building open-ended, adaptive architectures that collectively self-improve.
Human intelligence did not emerge from limitless resources; it was forged through the open-ended, compounding process of evolution operating under strict constraints. We are applying this exact principle to AI.
We believe recursive self-improvement is achievable on modest, sample-efficient compute. It shouldn’t be a winner-take-all asset locked inside hyperscale clusters, but a democratized public good.
We’re scaling our team to execute this mission. We are looking for frontier scientists and engineers who are entirely unsatisfied with the brute-force status quo. If you are ready to break away from standard benchmarking and build the self-improving future in Japan, come build with us.