Dimension scores are derived from public data and fields; weighted into the composite. Reference only.
コトバの盾 is a Japanese-language-focused AI talk coach provided by AJTC株式会社. Its core focus is not generic “sales talk” improvement, but training users to adapt their wording appropriately across different business situations. It breaks communication down into six CLEARS dimensions: empathy, listening, expression, adaptability, respect, and structure, which are then used for scoring and feedback.
The product offers three modes: Rehearsal Mode, where the AI plays the other party so users can practice repeatedly before a formal meeting; “お守り Mode,” which suggests what to say next in real time during business discussions or meetings; and Review Mode, where users can paste transcribed recordings to analyze their communication tendencies. Typical scenarios include 1-on-1s, feedback to subordinates, complaint handling, B2B sales, price negotiations, apologies, proposals, and meeting remarks. On the model side, the page mentions GPT-4.1 mini, Claude Sonnet, and a hybrid LLM setup for Standard/Pro, but does not disclose more detailed model routing or evaluation methods.
The free plan provides a total of 3 sessions, valid indefinitely, with registration taking about 1 minute and no credit card required. Standard costs ¥1,980/month and includes 50 sessions/month; Pro costs ¥4,980/month and includes 150 sessions/month plus priority support. You can cancel at any time, and unused sessions do not roll over. One point to note is that the page gives inconsistent descriptions of the character limit per session in different places: Free is listed as both 1,500 and 3,500 characters, Standard as both 4,000 and 6,000 characters, and Pro as both 8,000 and 10,000 characters. Before purchasing, it is best to rely on the checkout page or the limits shown in the dashboard.
On privacy, the page says practice content is encrypted and not shared externally. The FAQ states that session text is stored on the server for scoring, that audio data is not collected, and that all data is deleted when the account is deleted. The tool runs in the browser, supports phones, tablets, and PCs, and requires no app installation, making it fairly easy to use. However, AI responses are clearly marked as reference information and do not guarantee real-world business outcomes, so sensitive negotiations or HR-related situations still require human judgment.
It is suitable for managers, customer support staff, salespeople, and general business professionals who need to practice communication in Japanese workplaces, especially those who feel anxious about conflict, complaints, or interviews/meetings. If you need Chinese-language training, API integration, enterprise team management, or localized deployment, the current materials do not indicate support for these capabilities. Availability of access and payment from mainland China is not disclosed, so China access is currently unknown. Alternatives may include general-purpose or communication-training tools such as ChatGPT, Claude, Yoodli, and Poised.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on clears.jp official site.
clears.jp is an Japan AI Apps provider. TG4G tracks its product information, an overall rating of 7.0/10, and a China-accessibility score of Workable. Click "Visit Official Site" to reach clears.jp directly.