Which company provides the enterprise AI agent service 'ChatSense' and when did they start offering GPT-5.4?

Knowledge Sense Inc. provides the enterprise AI agent service 'ChatSense' and began offering OpenAI's GPT-5.4 model on March 30, 2026.

What is the expected timeline for GPT-5.4 availability to ChatSense users on Business plans and above?

The release of GPT-5.4 for all ChatSense users on Business plans and above is expected to be completed by the end of March 30, 2026.

How many major companies, including Tokyo Stock Exchange Prime Market firms, have adopted ChatSense as of the announcement?

ChatSense has been adopted by over 500 major companies, including firms listed on the Tokyo Stock Exchange Prime Market.

What are the key capabilities integrated into the GPT-5.4 model now supported by ChatSense?

GPT-5.4 integrates the coding strengths of GPT-5.3 Codex and the advanced reasoning abilities of GPT-5.2 for superior agent-based workflows.

Has the base fee for ChatSense changed with the introduction of the GPT-5.4 model, and what is the current price?

The base fee for ChatSense remains unchanged at 980 yen per month, excluding tax, despite the addition of the GPT-5.4 model.

Enterprise AI Agent 'ChatSense' Begins Offering GPT-5.4

Published Mar 30, 2026 8:17 PM ・ Updated Jun 17, 2026 9:00 AM ・ 8 min read ・ Source: PR TIMES

Knowledge Sense Inc. has announced the integration of OpenAI's latest frontier model, GPT-5.4, into its enterprise AI agent service, 'ChatSense.' The update will be available to all users on Business plans and above by the end of the day on March 30, 2026.

Knowledge Sense Inc. provides the enterprise AI agent service 'ChatSense.' We are pleased to announce that we have begun offering OpenAI's latest frontier model, 'GPT-5.4,' as an AI model available for use within ChatSense.

We expect the release to be completed for all users on Business plans and above by the end of today (March 30, 2026). If you have any questions, please contact us via our inquiry form.

Background: 'We want to utilize the latest AI securely' Generative AI, including ChatGPT, is being adopted by many companies for the purpose of improving operational efficiency. 'ChatSense,' provided by Knowledge Sense, has gained attention for its enterprise-grade strengths such as security, and has been adopted by over 500 major companies, including those listed on the Tokyo Stock Exchange Prime Market.

Recently, OpenAI announced the official release of its latest model, 'GPT-5.4.' To ensure our users can quickly leverage this latest and most powerful AI for their business operations, ChatSense has promptly integrated it into our system and begun offering it.

About the new model 'GPT-5.4' supported by ChatSense GPT-5.4 is the latest frontier model that integrates the exceptional coding capabilities of GPT-5.3 Codex with the advanced reasoning capabilities of GPT-5.2. It demonstrates outstanding performance in agent-based workflows, coding, and business operations.

Please be assured that there is no change to the base fee (980 yen excluding tax).

What is the enterprise AI agent 'ChatSense'? ChatSense is an AI agent service specialized for corporate use. It provides an environment where the latest generative AI models, including GPT, can be utilized for business while balancing security and convenience.

1. Features that protect chat content from AI training This is a common feature available across all plans, including the Enterprise plan, Standard plan, and the free Starter plan.

2. Abundant unique features, such as the ability to share prompts internally It features functions for corporate contracts not found in standard ChatGPT. We are also continuously updating the service with features such as bulk member management and folder/drag-and-drop organization, most of which are also applied to the free plan.

3. ChatSense has no initial costs and no minimum usage period To meet the needs of corporate clients who want to 'try it before committing,' we have lowered the hurdles for adoption as much as possible and significantly expanded the scope of what is available for free.

Please also see here for the benefits of corporate contracts for ChatGPT: https://chatsense.jp/blog/chatgpt-business-plan?utm_source=295

About Knowledge Sense Knowledge Sense Inc. is a company that plans, develops, and operates services for corporations utilizing generative AI. Through the provision of the enterprise AI agent 'ChatSense' and the generative AI testing service 'Ozone,' we support corporate AI utilization and DX promotion.

Company Overview Company Name: Knowledge Sense Inc. Headquarters: Sumitomo Fudosan Roppongi-dori Bldg. 2F, 7-18-18 Roppongi, Minato-ku, Tokyo Representative: Atsushi Kadowaki, CEO Established: April 10, 2019 Business Content: - Planning and operation of 'ChatSense' and the generative AI testing service 'Ozone' - DX strategy consulting utilizing generative AI - Solution development for internal and external use

AI Agent: https://chatsense.jp/blog/chatgpt-ai-agent Corporate RAG utilizing internal data: https://chatsense.jp/function/rag-chatbot-service Transcription: https://chatsense.jp/blog/chatgpt-transcribe

Company names and product/service names mentioned in the text are registered trademarks or trademarks of their respective companies.

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Source: PR TIMES
Category: product_launch

Enterprise AI Agent 'ChatSense' Begins Offering GPT-5.4

⚡ Key Points

What is the enterprise AI agent 'ChatSense'? ChatSense is an AI agent service specialized for corporate use. It provides an environment where the latest generative AI models, including GPT, can be utilized for business while balancing security and convenience.

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