Shisa AI Launches Real-Time Speech Recognition API with Low Latency and High Accuracy

Shisa AI's Advanced Real-Time Speech Recognition API

In a remarkable advancement for communication technology, Shisa Corporation, headquartered in Minato, Tokyo, has announced the launch of its proprietary real-time speech recognition API. This innovative service leverages cutting-edge AI models to deliver not only high precision in voice recognition but also an extremely low latency response time. This becomes particularly valuable across various applications, including real-time transcription during meetings, call centers, and live broadcasts, where immediacy is essential.

Key Features of Shisa’s Speech Recognition API

The Shisa Real-time ASR API has achieved a character error rate (CER) of 5.0%, as validated by the Japanese Voice Recognition Benchmark, SPREDS. With a flexible pricing model starting at just $0.45 per hour, this service becomes increasingly economical the more it’s utilized—offering $0.40 per hour for a commitment of 2,000 hours, and $0.36 for 10,000 hours. For customers needing 50,000 hours or more, bespoke pricing models are available. The response time is impressive, with system latency averaging at a mere 38.6 milliseconds. In extensive testing involving over 100 samples of diverse 10-second audio clips, results were confirmed approximately 254 milliseconds after a speaker finished talking—even with 10 simultaneous connections, the response time remained just under 500 milliseconds.

Please note that these latency and accuracy figures are intended as references based on Shisa's testing environment. Actual response times can vary significantly depending on the specific use conditions and requirements. Additionally, since the service bills in US dollars, the equivalent in Japanese yen will fluctuate in accordance with the current foreign exchange rates.

Data Security with Localized Processing

A significant advantage of the Shisa API is its strict adherence to data security protocols. All voice data processing is conducted on servers and infrastructure within Japan. This localized handling alleviates concerns regarding cross-border data transfer and provides a reliable environment for organizations with stringent security requirements, making implementation easier for these enterprises.

Transparent and Competitive Pricing Structure

Shisa’s transparent pricing model ensures clarity for clients, allowing them to manage initial implementation costs effectively. The API can be utilized flexibly, adapting to varying scales of use while offering superior cost performance—a critical consideration for modern businesses.

For further details about pricing and packages, potential users can visit: Shisa AI Pricing.

Dedicated Local AI Research and Support

Shisa AI takes pride in its dedicated in-house AI research and development team based in Japan. This team ensures continuous updates and enhancements to the models based on direct feedback from users and enterprises. This approach enables the API to effectively accommodate unique Japanese expressions, honorifics, dialects, and cultural nuances.

Moreover, Shisa provides timely technical support during implementation and customization tailored to the specific requirements of individual businesses.

Multi-Dialect Support and Custom Lexicons

Notably, the API doesn't just support standard Japanese, but also regional dialects like Kansai-ben, making it particularly well-suited for the Japanese language landscape. Plans to expand this support to include dialects from Tohoku and Kyushu regions are underway.

Additionally, Shisa has integrated a custom lexicon feature that allows companies to pre-register terms—such as industry-specific vocabulary, company names, and more—enhancing recognition accuracy in specialized fields like healthcare and law.

Overview of Shisa Real-time ASR API

- Service Name: Shisa Real-time ASR API
- Launch Date: September 1, 2026
- Pricing: Starting at $0.45 per hour
- Languages Supported: Japanese and English
- Service Page: Shisa ASR API
- Contact Information: [email protected]

About Shisa Corporation (Shisa AI)

Founded to address the unique challenges posed by the Japanese language, Shisa Corporation specializes in developing optimized open models for speech and translation APIs. The firm emphasizes the importance of context, politeness, and cultural subtleties, aiming to create AI models and services that are user-friendly for Japanese companies and developers alike.