What Sakana AI does

Sakana AI is a Tokyo-headquartered AI research and product company founded in July 2023 by David Ha (CEO), Ren Ito (Chairman), and Llion Jones (CTO, co-author of the Transformer paper "Attention Is All You Need"). The company develops biologically inspired and nature-driven AI architectures centered on multi-agent orchestration of frontier foundation models, evolutionary model merging, and recursive self-improvement, with research output spanning Nature (AI Scientist, March 2026), ICLR 2026 (Trinity, Conductor, DiffusionBlocks, SSoT), NeurIPS 2025 spotlight (AB-MCTS), ICML 2026 (TwELL with NVIDIA), and ICASSP 2026 (KAME).

Sakana AI's commercial product surface, as of mid-2026, includes Sakana Fugu and Fugu Ultra (a multi-agent orchestration foundation model delivered as an OpenAI-compatible API that routes tasks across pools of frontier models from OpenAI, Anthropic, and Google), Sakana Marlin (an autonomous B2B deep-research agent positioned as a "Virtual CSO" that produces 100+ page strategy reports in long-horizon reasoning loops), Sakana Chat (consumer chatbot), and the Namazu series of Japan-adapted large language models. The company has accumulated ~150 employees, $214M of funding in 2024, a $135M Series B at a $2.65B post-money valuation in November 2025 (Japan's most valuable unicorn), and undisclosed strategic investments from Google, Citi, Salesforce Ventures, and Mitsubishi Electric in early 2026.

The business model combines self-serve API and subscription revenue (Fugu at $20-$200/mo tiers plus token-based pay-as-you-go; Marlin at ¥150K-¥400K/mo plus enterprise custom), with multi-year enterprise and government contracts as the dominant contracted revenue stream. Named customers include MUFG Bank, SMBC Group, Daiwa Securities, Mitsubishi Electric, Japan's ATLA (Ministry of Defense), MIC (Ministry of Internal Affairs and Communications), The Yomiuri Shimbun, Citigroup, Datadog, and Hokkoku Financial Holdings. Distribution is Japan-first with global expansion via Google/Citi strategic partnerships, and EU/EEA products remain restricted pending GDPR compliance.

Name

Sakana AI

Legal name

Sakana AI K.K.

Website

https://sakana.ai

Company type

Private

Founded year

2023

Operating status

Operating

Headcount range

101–250 employees

Short description

Sakana AI is a Tokyo-based AI research and product company founded in 2023 that builds nature-inspired multi-agent orchestration models (Sakana Fugu, Marlin, Namazu) for Japanese financial institutions, defense agencies, and global enterprises, leveraging evolutionary model merging and recursive self-improvement research.

Ownership category

akta.pro rank

Product category

AI Foundation Models and Orchestration

NAICS

Computer Systems Design Services (541512)

SIC

Services-Prepackaged Software (7372)

akta.pro primary industry

Foundation Model Developers (LLM/Multimodal Model Labs) (HDAAACAA)

akta.pro secondary industry

Marketing Automation & Campaign Management CRM (HDAEAFAB)

Keywords

• Foundation model orchestration
• Multi-agent AI systems
• Enterprise AI research
• Sovereign AI infrastructure
• Japanese language models

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Operations, Infrastructure, Marketing or Sales

Revenue model

1. Sakana Fugu Subscriptions: Monthly subscription tiers for individual/developer use: Standard $20/mo, Pro $100/mo, Max $200/mo. Includes access to both Fugu and Fugu Ultra.
2. Sakana Fugu Pay-as-you-go (Token-based): Consumption-based pricing for enterprise and heavy production workloads. Fugu Ultra billed at $5/$30 per 1M input/output tokens (or $10/$45 above 272K context). Pay-as-you-go tokens served at higher priority than subscription.
3. Sakana Marlin Pay-as-you-go Credits: Per-credit pricing at ¥98/credit, 100 credits per research run. Immediate onboarding with credit card.
4. Sakana Marlin Subscription Tiers: Monthly Pro (¥150,000/mo, 2,000 credits), Team (¥400,000/mo, 6,000 credits), and custom Enterprise contracts. Discounted add-on credit rates per tier.
5. Enterprise Applied AI Contracts: Multi-year strategic partnership contracts with large Japanese enterprises (MUFG, SMBC, Daiwa Securities, Mitsubishi Electric, ATLA, MIC). Co-development of AI agents for specific business workflows, often with co-funded pilots and per-project scoping.
6. Government/Defense Research Contracts: Commissioned research contracts from Japanese government agencies (ATLA, MIC/Ministry of Internal Affairs and Communications) for defense and information analysis systems.

Pricing tiers

Go-to-market motion5 records

Distribution channels6 records

Marketing channels9 records

Core offering

Sakana AI builds and sells AI foundation models and orchestration products for enterprises, developers, and consumers. Its core commercial offering is Sakana Fugu, a multi-agent orchestration foundation model delivered as an OpenAI-compatible API that dynamically coordinates pools of frontier foundation models (OpenAI, Anthropic, Google) to execute complex tasks. The company also sells Sakana Marlin, an autonomous B2B deep-research agent ("Virtual CSO"), and offers Sakana Chat, a consumer chatbot powered by Japan-adapted Namazu LLMs. Revenue comes from API subscriptions, token-based consumption, enterprise contracts, and government research commissions.

Product overview

Sakana AI operates as a platform-plus-modules architecture combining commercial AI products with a portfolio of advanced research projects. At the commercial core, Sakana Fugu is a multi-agent orchestration system that routes tasks across foundation models (OpenAI GPT, Anthropic Claude, Google Gemini) through an OpenAI-compatible API. Sakana Marlin serves as a deep research / "Virtual CSO" agent for enterprise users, while Sakana Chat is a consumer chatbot powered by Namazu, a series of Japanese-focused large language models. Underpinning these products is a deep research portfolio that includes The AI Scientist (an end-to-end automated research system published in Nature), Darwin Gödel Machine (a self-improving AI), ShinkaEvolve (evolutionary program optimization), KAME (speech-to-speech architecture), and numerous model merging techniques like Evo-Ukiyoe, Evo-Nishikie, ALMA, and LLM-Squared that combine multiple foundation models for specialized capabilities.

Differentiator

Problem solved

Functional benefit

Brands

• Sakana Fugu: Multi-agent AI orchestration system delivered as a single foundation model. Dynamically coordinates pools of frontier foundation models to handle complex multi-step tasks. Includes Fugu (low latency) and Fugu Ultra (performance-optimized) variants accessible via a single OpenAI-compatible API.
• Sakana Marlin
• Sakana Chat

Products and services

• Sakana Fugu (and Fugu Ultra / Fugu Mini) Multi-agent orchestration foundation model that dynamically selects and coordinates specialized AI models from a pool of frontier foundation models (OpenAI, Anthropic, Google) through a single OpenAI-compatible API. Two variants: Fugu (balanced latency/quality) and Fugu Ultra (max performance). For developers, AI engineers, and enterprises building AI-powered applications.
• Sakana Marlin Sakana AI's first commercial product, positioned as a 'Virtual CSO' / Ultra Deep Research system that runs continuous, self-governing reasoning loops for up to 8 hours to produce 100+ page strategy reports and executive summary slides. Powered by AB-MCTS. For enterprise users in financial institutions, operating companies, consulting firms, and think tanks.
• Sakana Chat Consumer-facing chatbot service powered by the Namazu series of Japan-adapted large language models. Provides web search and multiple conversational styles. Free to use for Japanese consumers.

Quantifiable outcome

• Code review: Fugu Ultra surfaces 20+ issues where competing tools find ~3
• +14 more outcomes

Named customers12 records

Segments3 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration5 records

AI capability17 records

Feature15 records

Partnerships

13 partnerships are on record, tiered core, flagship and minor.

• DEEP DIVE (General Incorporated Association)coreStrategic or Co-development Partner · 29 May 2026Partnership on AI-powered information analysis combining DEEP DIVE's defense/international affairs expertise and open-source data (including satellite imagery) with Sakana AI's technology. DEEP DIVE founded by military/international affairs experts Hideshi Obara and Yu Koizumi.
• NVIDIAcoreTechnology or Integration · 9 May 2026Joint research collaboration on TwELL (Tile-wise ELLPACK), a new sparse data format with custom CUDA kernels for transformer LLMs. Achieved 20.5% inference and 21.9% training speedups. Open-source release. To be presented at ICML 2026.
• Sumitomo Mitsui Financial Group (SMBC Group)flagshipStrategic or Co-development Partner · 30 April 2026Multi-agent AI proposal-generation application for Sumitomo Mitsui Banking Corporation's wholesale banking clients. Uses interconnected AI agents for information gathering, analysis, hypothesis construction, story development, and quality assurance. Reduces 1-2 week process to tens of minutes-hours. Plans to expand across SMBC Group business areas.
• Ministry of Internal Affairs and Communications (MIC), JapancoreStrategic or Co-development Partner · 7 April 2026Sakana AI selected as technology development lead for the FY2025 MIC program on counter-disinformation technology. Developed Novelty Search technology for SNS narrative visualization, multi-AI fake information detection, and the Shachi Agent-Based Modeling framework for SNS space simulation.
• Mitsubishi Electric CorporationflagshipStrategic or Co-development Partner · 25 March 2026Investment in Sakana AI plus co-development of next-generation AI foundation models. Collaboration aims to enhance Mitsubishi Electric's Serendie™ digital platform and create solutions for complex business operations in manufacturing and infrastructure sectors. Mitsubishi Electric expects the partnership to accelerate digital transformation.
• The Yomiuri ShimbuncoreGTM or Marketing Partner · 23 March 2026Joint research project analyzing state-sponsored narratives in over 1.1 million SNS posts about Chinese criticism of Japan. Sakana AI's system extracted narratives, visualized structures, and generated hypotheses; Yomiuri independently verified one hypothesis through interviews with government officials.
• ATLA (Acquisition, Technology & Logistics Agency, Japan Ministry of Defense)flagshipStrategic or Co-development Partner · 13 March 2026Multi-year commissioned research contract ('Demonstration-type Breakthrough Research') to develop multi-AI integrated observation, reporting, information integration, and resource allocation systems for Command & Control (C2) systems across land/sea/air domains. Includes small vision-language model (SVLM) development for edge devices. Part of Sakana AI's Defense & Intelligence focus.
• Datadog, Inc.flagshipStrategic or Co-development Partner · 25 February 2026Strategic partnership for joint research, product innovation, and GTM initiatives focused on enterprise AI adoption and observability. Initially supports large enterprise customers in Japan using Datadog's local data center, with plans for global expansion. Combines Sakana AI's research capabilities with Datadog's observability and security platform.
• Google / Google DeepMindflagshipStrategic or Co-development Partner · 23 January 2026Google made a strategic investment in Sakana AI to strengthen Gemini's presence in Japan, where Gemini currently trails OpenAI's ChatGPT in the corporate market. Sakana AI will use Alphabet's language models to develop products and enhance reliability in critical services, while Google gains access to local Japan expertise. Part of broader Google AI acquisition spree including Common Sense Machines and Hume AI.
• Daiwa Securities GroupcoreStrategic or Co-development Partner · 3 October 2025Joint development of an advanced asset consulting platform (総資産コンサルティングプラットフォーム) to maximize client asset value through AI.
• Hokkoku Financial Holdings (Hokkoku Bank)minorStrategic or Co-development Partner · 10 June 2025MOU for strategic alliance to promote regional finance × AI initiatives.
• Mitsubishi UFJ Financial Group (MUFG) / MUFG BankflagshipStrategic or Co-development Partner · 19 May 2025Multi-year strategic partnership to develop AI Lending Expert (融資業務支援AI) for corporate loan origination. Sakana AI's 'Applied Team' integrates AI agents to support loan analysis, information gathering, financial simulation, and proposal drafting. By 2026 the project moved into real-case validation. Includes Hello AI @ MUFG campaign and Datadog partnership.
• University of British Columbia (UBC), Vector Institute, University of Oxford, MIT, CambridgecoreStrategic or Co-development Partner · 12 May 2025Academic research collaborations on The AI Scientist (Nature paper, 2026), Darwin Gödel Machine (UBC, 2025), LLM-Squared (Oxford and Cambridge, 2024), Digital Red Queen (MIT, 2026).

Scale indicators12 records

Recent moves8 records

Expansion highlights8 records

Direct peers

• DeepSeek: Chinese AI research lab with strong open-weight frontier models and a sample-efficiency narrative. Comparable to Sakana as a non-US frontier lab competing on research quality and post-training adaptation (Namazu is the Japan-specific analog of DeepSeek's domain adaptation).
• Mistral AI: European frontier AI research lab building foundation models and enterprise orchestration products. Closely comparable to Sakana AI in positioning as a non-US frontier research company with sovereign-AI appeal and a mix of open-weight models and commercial APIs.
• Preferred Networks: Japan's leading domestic AI/ML research company, with deep-learning roots in Tokyo and historical ties to Sakana's Defense lead (ex-Preferred Networks). Closest direct Japanese peer for sovereign AI research and industry partnerships.
• AI21 Labs: Foundation model lab with enterprise APIs and agentic orchestration products. Comparable to Sakana in offering frontier-tier LLMs via API with an emphasis on reasoning, tool use, and enterprise reliability.
• Stability AI: Open generative AI research lab with both research output and commercial products. Sakana's Chairman Ren Ito was Stability AI's COO, and the two share an open-research-led, multi-modal product strategy.
• Cohere: Enterprise-focused foundation model company offering orchestration, RAG, and agentic products. Comparable to Sakana in targeting enterprise verticals (financial services, government, defense) and offering API-first deployment.

Broad incumbents

• Anthropic: Frontier AI lab whose Claude models are orchestrated by Sakana Fugu. Anthropic represents both a critical supplier and the most direct competitive threat to Sakana's orchestration value-add, as it ships native tool-use and agentic capabilities.
• xAI: Frontier AI lab (Grok) competing on multi-agent and reasoning capabilities. Comparable to Sakana in frontier-research ambition and pace of model releases, though xAI operates at vastly greater capital scale.
• OpenAI: Frontier lab whose GPT models (GPT-5, GPT-4.1, GPT-4o) are integrated into Sakana Fugu. OpenAI's enterprise reach and ChatGPT dominance in Japan (per Google's stated goal to close the gap) make it both an upstream dependency and competitive incumbent.

Emerging players

• Moonshot AI: China-based AI lab that raised $1B in 2024 and competes on frontier reasoning and long-context models. Comparable in funding scale and research-led positioning, though operating in a different regulatory and customer environment.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat7 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/SakanaAILabs
• GitHubgithub.com/SakanaAI
• LinkedInlinkedin.com/company/sakana-ai
• Facebookfacebook.com/SakanaAI

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 records

Funding overview

Funding rounds6 records

Investors38 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sakana AI