What Elyza does

Elyza (株式会社ELYZA, founded 2018, Tokyo, Japan) is a generative-AI company focused on the research, development, and commercialization of Japanese-specialized large language models. The company originated as a spinout of the University of Tokyo's Matsuo Laboratory and rebranded to ELYZA in September 2019. Since developing its own LLM in 2020, Elyza has built a portfolio of proprietary Japanese-language model families — including a Japanese base LLM, the reasoning model ELYZA-Thinking-1.0-Qwen-32B, the medical-domain ELYZA-LLM-Med developed under Cabinet Office SIP Phase 3, and the diffusion-architecture ELYZA-LLM-Diffusion — alongside cloud services (ELYZA DIGEST for summarization, ELYZA Pencil for article writing, ELYZA Brain) and the enterprise generative-AI SaaS product ELYZA Works, launched in September 2025 at ¥19,800/month. Approximately 100 employees support R&D, enterprise solutions, and product development.

Elyza operates three business pillars — R&D, Solution (custom AI consulting and LLM implementation for large Japanese enterprises), and Product (ELYZA Works and other SaaS) — with revenue derived from professional services, recurring SaaS subscriptions, and technology licensing. Distribution is delivered through direct enterprise field sales, self-serve SaaS, and a strategic reseller channel via KDDI, which acquired Elyza in 2024 and serves as both parent company and primary distribution partner for ELYZA Works. The customer base is concentrated in large Japanese corporations across insurance (Sompo Japan, Tokio Marine, Meiji Yasuda Life), financial services (Mitsubishi UFJ Research & Consulting, Mitsui Sumitomo Card), transportation (JR West Japan), media (SmartNews, Tokyo News Communications), HR (Mynavi), legal (Mori Hamada Matsumoto Law), professional services (Deloitte Touche Tomatsu), retail/loyalty (Lawson/Ponta), and government (Digital Agency), with documented outcomes including ~50% reductions in call handling / after-call work and ~54% efficiency gains in contact-center operations.

The company maintains ISMS certification, NVIDIA Inception Program partner status, and an academic affiliation through Special Advisor Professor Yutaka Matsuo. It has received multiple recognitions including EY Innovative Startup 2021 and Weekly Toyo Keizai Great Venture 100 2021. As of early 2026 Elyza had rolled out five major model or product releases in a 12-month window, expanded its executive bench, and launched a co-branded video campaign with KDDI for ELYZA Works — indicating active scaling of both the underlying LLM roadmap and the go-to-market surface.

Name

Elyza

Legal name

株式会社ELYZA

Website

https://elyza.ai

Company type

Private

Founded year

2018

Operating status

Operating

Headcount range

11–50 employees

Short description

Elyza is a Tokyo-based generative-AI company developing Japanese-specialized large language models and enterprise AI solutions, serving large Japanese corporations across insurance, finance, government, media, and professional services via custom consulting, SaaS (ELYZA Works), and KDDI-channel distribution.

Ownership category

akta.pro rank

Product category

Enterprise Generative AI Platform

NAICS

Computer Systems Design Services (541512), Custom Computer Programming Services (541511)

SIC

Services-Computer Programming Services (7371), Services-Computer Integrated Systems Design (7373)

akta.pro primary industry

LLMOps & Generative AI Platforms (Prompt/Agent Orchestration, RAG) (HDAEANAD)

akta.pro secondary industries

AI/ML Engineering & Model Development Services (BPAEAHAF), Enterprise Foundation Model Integration & APIs (Connectors, Governance, Deployment) (HDAAACAO), Fine-Tuning, Adaptation & Custom Model Training (PEFT/LoRA/RLHF) (HDAAACAC)

Keywords

• Japanese language models
• Enterprise generative AI
• LLM development
• AI consulting services
• Sovereign AI Japan

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, Infrastructure, Marketing or Sales, Operations

Revenue model

1. AI Solution Provision: Custom AI solutions developed and delivered to enterprise clients, addressing specific business needs through consulting and implementation services.
2. ELYZA Works Product Sales: SaaS product offering ELYZA Works available through subscription model, both direct sales and via KDDI channel partnership.
3. Technology Licensing: Licensing of proprietary LLM technology and specialized AI models to enterprise customers and partners.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels7 records

Core offering

ELYZA develops proprietary Japanese-specialized large language models (LLMs) and delivers enterprise generative AI solutions. Its offerings include the ELYZA Works SaaS platform for field-led creation of custom business AI apps, the ELYZA LLM model series (general-purpose, medical, reasoning, diffusion-based), summarization (ELYZA DIGEST), and article writing (ELYZA Pencil). The company also provides AI consulting, custom LLM development, fine-tuning, and joint research services to large Japanese enterprises across insurance, financial services, media, transportation, government, and professional services sectors.

Product overview

ELYZA operates two business segments: AI Research & Solution (enterprise consulting and custom LLM development) and AI Product (generative AI SaaS). The product portfolio centers on the ELYZA LLM series of Japanese large language models powering cloud services including ELYZA DIGEST for document summarization and ELYZA Pencil for article writing, unified under the '大規模言語AI イライザ' brand. The flagship consumer product is ELYZA Works (launched September 2025), enabling field-led creation of custom enterprise AI apps without coding skills. Specialized domain models include ELYZA-LLM-Med for healthcare and ELYZA-Thinking-1.0-Qwen-32B for reasoning tasks. The company also offers co-development services and joint research programs for enterprise LLM customization.

Differentiator

Problem solved

Functional benefit

Products and services

• ELYZA Works Enterprise generative AI SaaS platform enabling non-technical business users to create, share, and improve company-specific AI apps through natural language descriptions. Includes built-in enterprise-grade security for financial and government use, external service integrations (Microsoft SharePoint, Google Drive, Box), and an AI conversation/consultation feature for app improvement. Pricing starts at ¥19,800/month.
• ELYZA DIGEST Article and document summarization AI service. Generates 3-line summaries of news articles, reports, and documents. Handles both clean documents and rough transcripts including call logs. Available as enterprise cloud service 'ELYZA Doc DIGEST'.
• ELYZA Pencil Japanese article writing AI that generates text from keywords in approximately 6 seconds. Supports news articles, business emails, and resume generation. Achieved 300,000 users and 960,000 writing sessions within 6 months of launch.
• ELYZA LLM (Japanese LLM series) ELYZA's series of Japanese large language models achieving domestic top-tier performance comparable to GPT-4o. Powers ELYZA's cloud services and is available for enterprise licensing and custom deployment.
• ELYZA-Thinking-1.0-Qwen-32B Reasoning model with enhanced logical thinking capabilities using Chain of Thought. 32 billion parameters, achieves performance comparable to OpenAI o1-mini. Commercially available.
• ELYZA-LLM-Med Japanese medical LLM achieving domestic highest performance and global top-tier accuracy for medical domain tasks. Developed under Cabinet Office SIP Phase 3 for healthcare system integration and clinical verification.
• ELYZA-LLM-Diffusion Japanese diffusion language model series enabling high-speed text generation. Commercially available in base (ELYZA-Diffusion-Base-1.0-Dream-7B) and instruction-tuned (ELYZA-Diffusion-Instruct-1.0-Dream-7B) variants.
• ELYZA Brain Japanese-specific AI engine developed using post-BERT algorithms. Foundation technology that preceded and enabled ELYZA's LLM development program.
• AI Research & Solution Service Enterprise solution services including generative AI practicalization support, specialized learning (fine-tuning), and enterprise/industry-specific LLM development. Accompanies clients from exploration through implementation using GPT or proprietary models to strengthen competitive advantage.

Quantifiable outcome

• 50% reduction in customer service handling time
• +1 more outcomes

Named customers13 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

AI capability6 records

Feature5 records

Partnerships

Three partnerships are on record, tiered core and minor.

• SOMPO HoldingscoreStrategic or Co-development PartnerSOMPO Holdings is a key strategic partner, with Elyza developing AI solutions for Sompo Japan insurance operations. This partnership includes co-development of insurance-specific AI applications.
• Altius LinkminorStrategic or Co-development PartnerStrategic partnership for business development and AI solution delivery.
• NVIDIAcoreTechnology or IntegrationNVIDIA Inception Program partner providing Elyza with GPU computing resources, technical support, and ecosystem access for training and deploying large language models.

Scale indicators4 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• Preferred Networks: Japan's leading deep-learning research company developing foundation models (PLaMo) and AI infrastructure. Comparable to Elyza as a domestic competitor building sovereign Japanese LLMs for enterprise applications.
• Stockmark: Japanese AI startup developing domain-specific Japanese LLMs (e.g., Stockmark LLM for business documents) and enterprise SaaS like AIRC. Closely comparable to Elyza's verticalized Japanese LLM and document-AI approach.
• Sakana AI: Tokyo-based AI research lab building Japanese-focused foundation models with efficient training approaches. Directly comparable to Elyza as a Japan-headquartered, Japanese-language LLM specialist targeting enterprise and research use cases.
• ABEJA: Long-standing Japanese AI company offering enterprise AI platforms including LLM-powered products (ABEJA LLM) and DX services. Comparable to Elyza in targeting Japanese large enterprises with managed AI/LLM solutions and industry-specific deployments.

Broad incumbents

• OpenAI: Creator of GPT-4o and o-series models with growing Japanese language capability, distributed in Japan through SoftBank. A broad incumbent competing for the same Japanese enterprise LLM budget Elyza targets.
• Anthropic: US-based AI lab behind Claude models, increasingly adopted by Japanese enterprises for document and coding workflows. Comparable as a broad LLM incumbent competing with Elyza for Japanese enterprise workloads.
• Snowflake (Cortex AI): Cloud data platform offering enterprise LLM and AI features inside its data cloud. Comparable as an infrastructure incumbent enabling Japanese enterprises to deploy AI on their own data, adjacent to Elyza's sovereign AI offering.

Emerging players

• Turing Inc. Japanese AI company originally focused on autonomous driving, now expanding into Japanese LLMs (e.g., Heron, Karakuri). Partially comparable to Elyza as a Japanese full-stack LLM developer targeting Japanese-language applications.
• Rinna Co. Japanese conversational AI company known for Japanese-tuned LLMs and character-driven dialogue models. Comparable to Elyza in Japanese-language model specialization but smaller scale and less enterprise-focused.
• Cohere: Enterprise-focused LLM provider offering secure, customizable models and deployment options. Comparable to Elyza in targeting enterprise customers with private/specialized LLM deployment rather than consumer applications.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/ELYZA_inc
• Facebookfacebook.com/elyza.jp
• LinkedInlinkedin.com/company/elyza

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 records

Funding overview

Funding rounds1 record

Investors

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 Elyza