ELYZA Works

ELYZA, Inc. is a Tokyo-based AI company founded in September 2018 that develops Japanese-specialized large language models and helps large enterprises put LLMs into daily operations. It runs an AI research and solutions business and an AI product business, and KDDI became its controlling shareholder through a 2024 capital and business alliance.

ELYZA Works, launched in September 2025, is a business generative AI tool that lets non-specialist staff build company-specific AI apps by describing a task in plain language, with AI guiding planning, building and refinement. Apps are shared across teams and improved using usage logs. 2026 updates added chaining of several apps with human review steps in between, connection to Microsoft SharePoint so apps use the latest files, and a feature that saves a process completed in conversation with an AI agent (file analysis, web research, multi-step execution) as a reusable app. KDDI resells the product as ELYZA Works with KDDI.

• App creation from task description: generates a business AI app with generative AI built in from a plain-language description of the work.
• AI-guided building: AI supports planning, building and refining each app so no prompt expertise is needed.
• Team sharing and improvement: apps are shared across teams and their accuracy improved using usage logs.
• Chained apps: links several apps into one process with human judgment or added information between steps.
• Apps from AI agents: saves an agent-completed process, including file analysis and web research, as a reusable input-form app.
• External data connection: pulls the latest files from Microsoft SharePoint, with Google Drive and Box announced as planned.

Japanese-owned manufacturers and trading firms in Vietnam can give back-office staff shared apps for drafting reports and checking contracts against company rules. Insurers and banks can standardize customer correspondence drafting and call summaries. Contact center operators can turn senior agents' handling processes into reusable apps for new staff.

Front-line teams build and share task-specific AI apps without prompt engineering skills, so expert know-how is reused across the organization. ELYZA cites customer results such as up to 54% efficiency gains in call summarization at JR West Customer Relations and a 50% workload cut in customer correspondence drafting at Tokio Marine & Nichido. Entry pricing starts at 19,800 yen per month, and the vendor describes security at the level used by major financial firms and government agencies.

Enterprises in Japan and Asia are moving from general chat assistants to task-specific AI apps and agents that encode internal procedures. Demand is strongest where staff handle large volumes of documents, contracts and customer correspondence, and where data security requirements rule out unmanaged consumer tools. Japanese companies operating in Vietnam increasingly look for tools that their headquarters already approve.

ELYZA, Inc. was founded in September 2018 and is headquartered in Hongo, Bunkyo-ku, Tokyo; CEO Yuya Soneoka. Under a March 2024 capital and business alliance, KDDI and KDDI Digital Divergence planned to hold 43.4% and 10.0%, making ELYZA a KDDI consolidated subsidiary. In 2026 it obtained a patent for the ELYZA Works app-creation mechanism and launched ELYZA RSI Research.