Who are the recommended platform-type vendors?

The guide lists JAPAN AI, Exawizards, PKSHA Technology, and Couzen as platform-type vendors offering monthly SaaS services.

What is a typical starting price for custom AI agent development?

WEEL publicly lists basic AI agents from ¥2 million, with business-specific ones ranging ¥4–8 million and autonomous ones at ¥5–10 million or more.

How do I choose between the different vendor types?

Match the type to your needs: platform-type for quick starts, custom development for unique requirements, consulting-type for business design and adoption, and SIer-type for large-scale integration with core systems.

AI Business & IndustryAINOW2h agoSep 4, 2026, 01:00 JST2 min read

AI agent vendors: 16 firms in 4 types compared

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Key takeaway

A new guide compares 16 AI agent vendors in four types. Platform-type offers monthly SaaS; custom development tailors to needs.
Consulting-type aids adoption; major SIer type handles large-scale integration. Costs vary, with custom builds from ¥2 million.
The guide suggests focusing on a type first.

3 Key Points

What happened
A guide compares 16 AI agent vendors across four types: platform, custom development, consulting, and major SIer. It details services like JAPAN AI AGENT, WEEL's custom builds from ¥2 million, and IBM watsonx Orchestrate.
Why it matters
The choice shapes upfront costs and rollout speed. Platform-type SaaS can start within weeks, while SIer projects take longer and cost more due to integration needs. Consulting-type firms help with business redesign and adoption.
What to watch
Vendors like WEEL publish starting prices (¥2 million for basic agents). IBM offers free trial plans. NTT Data's LITRON Builder launches April 2026. The guide advises picking a type first, then shortlisting three vendors.

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Context & Analysis

The comparison reflects a maturing market where vendors are positioning by business model rather than just technology. Platform-type firms like JAPAN AI and Exawizards aim for low-friction adoption, often highlighting security certifications like ISMS and ISO 27001. This signals that buyers increasingly prioritize data governance.

Custom developers such as WEEL and AVILEN target specific pain points, with WEEL publishing pricing and AVILEN showing scale with about 1,000 client companies. Meanwhile, consulting-led firms like Giburley emphasize organizational change and training, suggesting that many deployments fail without business process alignment.

The appearance of major SIers like NTT Data and Fujitsu indicates that AI agents are entering enterprise core-system territory. Their offerings, such as NTT Data's LITRON Builder, are set for release in 2026, marking a shift toward infrastructure-level adoption. The guide's five selection criteria—including support scope, system integration, and data handling—offer practical filters for buyers navigating this landscape.

FAQ

Who are the recommended platform-type vendors?: The guide lists JAPAN AI, Exawizards, PKSHA Technology, and Couzen as platform-type vendors offering monthly SaaS services.
What is a typical starting price for custom AI agent development?: WEEL publicly lists basic AI agents from ¥2 million, with business-specific ones ranging ¥4–8 million and autonomous ones at ¥5–10 million or more.
How do I choose between the different vendor types?: Match the type to your needs: platform-type for quick starts, custom development for unique requirements, consulting-type for business design and adoption, and SIer-type for large-scale integration with core systems.

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