Free trial
The homepage invites visitors to try Sakana Chat and Sakana Translate, but does not state trial terms or usage limits.
Learn moreSakana AI
Japanese frontier AI lab with LLM orchestration, research agents and translation
Intermediate
What is Sakana AI?
Sakana AI is a Japanese frontier AI lab offering Fugu, an LLM orchestrator, Namazu for Japanese, Marlin for deep strategy research, and Translate, plus bespoke enterprise and government builds backed by published research.
Sakana AI is a Tokyo-based AI lab that pairs published research with commercial products. Its lineup centers on language models and agents: Sakana Fugu, Namazu, Marlin and Translate, all reachable from a single chat interface or a dedicated site. The company also runs an applied team that builds custom systems for large organizations. Fugu is an orchestration model. Instead of relying on one network, it coordinates several of the strongest LLMs and hands each step of a task to the model best suited to it, aiming to improve the balance of cost against performance. The design also means work continues if a closed model becomes unavailable. Variants are named Ultra (maximum performance), Cyber (cybersecurity) and Max (the cost and performance frontier), and the homepage positions the family as a fit for agentic chatbots. Namazu is a Japanese-focused LLM with web search and code execution built in, presented as a showcase of the lab's post-training process. Marlin is an autonomous research agent that reasons for hours and produces strategy reports for M&A consultants, strategy departments and think tanks. Translate runs on Namazu and handles Japanese, English and Chinese with control over register, from casual to formal. Buyers fall into two groups. Individuals and teams can try the models in Sakana Chat or use Translate directly. Enterprises and government bodies work with the Applied team, which scopes a use case with client experts and then builds and evaluates the system. Named engagements include MUFG Bank, SMBC Group, Daiwa Securities Group, the Ministry of Defense, ATLA and the Ministry of Internal Affairs and Communications. Among alternatives, Sakana AI sits between a general chatbot vendor and a research institute. Its orchestration approach differs from single-model providers, and its Japanese-language strength and domestic institutional ties set it apart from global labs. Research on evolution, collective intelligence and self-improving systems, including The AI Scientist, appears at ICLR, NeurIPS and in Nature, and feeds the products directly.
How do you use Sakana AI?
1Open Sakana Chat
Go to the chat site to try the models directly in the browser. Fugu and Namazu are both offered there.
2Review the Fugu variants
Read the Fugu page to compare Ultra, Cyber and Max, then pick the one matching your priority: top performance, security work or cost balance.
3Test Japanese tasks with Namazu
Read about Namazu, then run Japanese prompts that use its built-in web search and code execution in Sakana Chat.
4Translate and proofread text
Open Sakana Translate, choose among Japanese, English and Chinese, and set the register from casual to formal.
5Explore Marlin for research reports
Read the Marlin page to see whether its hours-long autonomous research fits strategy or M&A work, then contact the team from the homepage.
Pros and cons
Pros
- Fugu routes each step to the best available model, targeting a better cost to performance balanceAI
- Namazu is tuned for Japanese and includes web search and code executionAI
- Translate offers register control from casual to polite across Japanese, English and ChineseAI
- Marlin produces long-running, analyst-style strategy reports for consulting and policy workAI
- Strong research record at ICLR, NeurIPS and Nature that feeds directly into productsAI
Cons
- Pricing is not published on the homepage, so costs for Fugu, Namazu or Marlin are unclearAI
- Marlin and the Applied team are aimed at enterprises, with no self-serve path statedAI
- Case studies are written in Japanese, which limits evaluation for non-Japanese readersAI
- Translate covers only Japanese, English and Chinese, far narrower than general translatorsAI
- No API, integrations or documentation are described on the homepageAI
How much does Sakana AI cost?
Support
Enterprise customers can reach the team through a contact form, and the Applied team scopes, builds and evaluates systems alongside clients. No public help centre is described.
Features
Fugu orchestrates multiple LLMs (Ultra, Cyber, Max variants). Namazu is a Japanese LLM with web search and code execution. Marlin is an autonomous research agent for strategy reports. Translate handles Japanese, English and Chinese with adjustable register. Custom enterprise builds via the Applied team.
Learn moreFrequently asked questions about Sakana AI
Does Sakana AI offer a free trial?
The homepage invites visitors to try Sakana Chat and Sakana Translate, but does not state trial terms or usage limits.How do you use Sakana AI?
The walkthrough on this page covers 5 steps: 1. Open Sakana Chat 2. Review the Fugu variants 3. Test Japanese tasks with Namazu 4. Translate and proofread text 5. Explore Marlin for research reports.What platforms does Sakana AI support?
Sakana AI is available on Web App.What are the limitations of Sakana AI?
Pricing is not published on the homepage, so costs for Fugu, Namazu or Marlin are unclear. Marlin and the Applied team are aimed at enterprises, with no self-serve path stated. Case studies are written in Japanese, which limits evaluation for non-Japanese readers.
