Cutting-edge AI solutions for seamless Japanese-English communication. Empowering global businesses with best-in-class translation, voice synthesis, and speech recognition.
Built on best-in-class research technology and deep respect for Japanese culture
Our models are trained on extensive hand curated bilingual datasets, delivering nuanced translations that capture context, tone, and cultural subtleties with unmatched precision.
Every business is unique. We support custom just-in-time context prompting and optional model fine-tuning to match your industry terminology, brand voice, and specific use cases.
More than translation - we understand Japanese business culture, formal registers, and regional variations to ensure your message resonates authentically.
Powerful APIs to bridge your app to Japan and the world.
Japan's highest-performing bilingual AI models
Access Shisa V2.1 and V2 405B models through an OpenAI-compatible API. Purpose-built for Japanese language excellence with benchmark performance rivaling GPT-4o. Perfect for chatbots, translation, and content generation.
From $0.20 per 1M Tokens
API DocsBest-in-class Japanese-English LLM translation
Powered by Shisa.ai's proprietary large language models, our Translation API delivers unmatched accuracy for Japanese-English translation. Understands context, nuance, and cultural subtleties that generic translation tools miss.
From $0.02 per 1K Characters
API DocsHigh-quality, natural-sounding voice synthesis with emotional tones
Transform text into lifelike speech with our advanced TTS API. Multiple voice options, emotional tone control, and perfect pronunciation for both Japanese and English. Ideal for voiceovers, assistants, and accessibility features.
From $0.08 per 1K Characters
API DocsHighly accurate speech-to-text, optimized for Japanese
Convert spoken Japanese and English into accurate text with our advanced ASR API. Optimized for Japanese accents and dialects, with industry-leading accuracy even in noisy environments. Perfect for transcription, voice commands, and accessibility.
From $0.36 per Hour
API DocsSee how businesses use our APIs
Translate support tickets in real-time, generate voice responses, and transcribe customer calls for multilingual customer service.
Create multilingual course content, generate audio lessons, and transcribe lectures for accessible education.
Translate websites, apps, and marketing materials with context-aware accuracy for the Japanese market.
Build bilingual voice interfaces with ASR for input, LLM for understanding, and TTS for responses.
Generate subtitles, dub content, and create voiceovers for international media distribution.
Localize game content, generate character voices, and enable real-time player communication.
Fast and cost-efficient for everyday tasks
Optimal balance of intelligence and speed
Best-in-class Japanese-English LLM translation
Accurate speech-to-text optimized for Japanese
Native sounding Japanese voice synthesis including support for multilingual and faster monolingual models
Character count includes both input and output.
All prices are subject to applicable taxes.
Volume discounts available. Contact us for details.
Request your API key and make your first call in minutes. Full access to LLM, Translation, TTS, and Speech Recognition — no sales call required.