English 
KnowledgeSense Inc. provides “ChatSense,” a ChatGPT system for businesses that allows them to utilize ChatGPT in a secure environment. We are pleased to announce the release of OpenAI’s advanced inference model, “GPT-5 Thinking,” as an AI model available within ChatSense. “GPT-5 Thinking” is a model that excels at step-by-step thinking for complex problem settings. Starting today, the inference model previously offered within ChatSense as “o3” will be replaced with “GPT-5 Thinking.” Pricing remains the same as the previous “o3” model, with a flat rate of 980 yen (excluding tax).
本サービスは、本日（2025年8月19日）より提供を開始し、エンタープライズプランおよびビジネスプランをご利用の一部のお客様を対象に順次提供を開始する予定です。
ChatGPT is an AI chatbot that is capable of natural, human-like conversations and is expected to contribute to improving business efficiency and service quality. ChatGPT’s strengths, such as security, have also attracted attention in ChatSense, a generative AI service for businesses provided by KnowledgeSense, and it has been adopted by over 500 major companies, including companies listed on the Tokyo Stock Exchange Prime and some of Japan’s largest universities.
こちらもお読みください： ちば興銀アプリが生活密着型サービスを開始
ChatSense is committed to supporting businesses in their efforts to utilize generative AI in a secure manner. “GPT-5 Thinking” is considered a versatile model that is particularly suited to complex reasoning in fields such as text generation, mathematics, and coding, as well as decision support involving long contexts. By supporting “GPT-5 Thinking,” ChatSense will enable businesses to use generative AI in a secure environment, discover use cases, and further improve business efficiency.
About the new model “GPT-5 Thinking” released by ChatSense
GPT-5 Thinkingは、米国OpenAI社が提供する最新のGPT-5をベースとした推論モデルです。前世代の特殊推論モデルから大幅に改良され、長期推論時の一貫性の向上、幻覚の抑制、コマンド追従性の向上など、実運用における信頼性を高めています。
What is the in-house ChatGPT service “ChatSense”?
ChatGPTはOpenAIが2022年秋に発表した大規模言語モデルの一種。ChatSenseは ナレッジセンスChatGPTとクロード4を利用したセキュアな自社サービスです。
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