- Built for Japan, trained by Japan
- Trustworthy local AI for on-prem, in private cloud, or on your own GPUs
- Efficient and mighty: light, fast, and yet precise at under 32B parameters
Upstage introduces Syn Pro—a major leap forward for Japan’s AI future with the release of Syn Pro, a next-generation Japanese Large Language Model (LLM) co-developed locally with Karakuri Inc., a leader in Japanese AI development.
Already earning top-tier recognition on the global stage, Syn Pro is Japan’s top-performing locally trained LLM — ranked #1 under 32B parameters and placed in the global top 20 on the Nejumi Leaderboard by Weights & Biases Japan. In Japanese-language tasks, Syn Pro outperforms even larger models like GPT OSS-120B, delivering the precision and cultural nuance required by Japan’s most demanding industries.
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Purpose-built for Japan’s enterprises and public institutions, Syn Pro reflects deep linguistic, regulatory, and cultural alignment — and is deployable entirely on-premises, in private cloud, or through integrated hardware.
1. Syn Pro is built for Japan, trained by Japan.
- Co-developed with Karakuri Inc., it understands Japanese language, culture, and business logic at a native level.
- It’s Japan’s #1 locally trained model under 32B parameters, ranked in the global Top 20 on the Nejumi Leaderboard.
- Syn Pro even outperforms larger models like GPT OSS-120B in Japanese accuracy and nuance.
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2. Syn Pro is trustworthy with built-in data sovereignty.
- Enterprises can run Syn Pro wherever they need — on-prem, in private cloud, or on their own GPUs.
- No external API calls. No uncontrolled data flow. Your data stays yours.
- That’s why it’s trusted in Japan’s most regulated sectors — from finance and healthcare to government.
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3. Syn Pro is efficient and mighty.
- At under 32B parameters, Syn Pro is lighter, faster, yet more precise than models several times its size.
- Its ‘reasoning budget’ feature automatically balances speed and complexity — delivering stable, production-ready results without heavy infrastructure costs.
A scalable LLM family for Japan
Syn Pro joins the original Syn (11B) model — already powering mission-critical solutions across industries — to form a scalable LLM family purpose-built for Japan. From lightweight deployments to complex reasoning workloads, Syn and Syn Pro offer a continuum of capability designed to help organizations innovate securely and scale with confidence. This vision extends through collaborations like SolarBox, a joint solution with HP Japan, which brings Syn’s trusted AI performance into secure, on-premise environments — enabling enterprises and public institutions to deploy generative AI with full control over their data.
Who Syn Pro is for
- CIOs and IT leaders bringing generative AI in-house
- Legal, compliance, and risk teams seeking verifiable AI
- Enterprises requiring on-prem or private cloud control
- Public institutions demanding high Japanese accuracy
- AI builders developing domain-specific applications
Experience Syn Pro
Ready to experience the new frontier of Japanese AI? Syn Pro is now available. Begin your journey with a locally tuned, efficient, and high-performing model built for real-world applications.
