Solar Pro 4

Solar Pro 4

Upstage
Syn

Syn

Upstage AI
+
+

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About

Solar Pro 4 is an agentic AI model built to carry real work to the finish: reading documents, running tools, producing deliverables, and stopping when the evidence runs out. It targets longer, more complex workloads that move across multiple documents, execute tasks in a terminal, and chain tool calls over many steps. The model supports a 512K context window with up to 128K output tokens, allowing agents to load contracts, reports, and data files into a single session without splitting them. It handles English, Korean, and Japanese for both input and output, while adjustable reasoning effort lets users choose deeper analysis or faster, real-time interaction. Solar Pro 4 is designed to stay accurate through long documents, multi-turn tool use, and terminal tasks, and to preserve values and conclusions across sequential deliverables such as Excel workbooks, reports, and slide decks.

About

Syn is a next‑generation Japanese large language model co‑developed by Upstage and Karakuri, featuring under 14 billion parameters and optimized for enterprise use in finance, manufacturing, legal, and healthcare. It delivers top‑tier benchmark performance on the Weights & Biases Nejumi Leaderboard, achieving industry‑leading scores for accuracy and alignment, while maintaining cost efficiency through a lightweight architecture derived from Solar Mini. Syn excels in Japanese “truthfulness” and safety, understanding nuanced expressions and industry‑specific terminology, and offers flexible fine‑tuning to integrate proprietary data and domain knowledge. Built for scalable deployment, it supports on‑premises, AWS Marketplace, and cloud environments, with security and compliance safeguards tailored to enterprise requirements. Leveraging AWS Trainium, Syn reduces training costs by approximately 50 percent compared to traditional GPU setups, enabling rapid customization of use cases.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Developers and organizations seeking to run complex AI agent workflows across documents, tools, terminals, and multi-step business tasks with verifiable outputs

Audience

Companies seeking a tool tailored for enterprise‑grade applications and seamless integration with industry‑specific workflows

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

$0.03 per 1M tokens
Free Version
Free Trial

Pricing

$0.1 per 1M tokens
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Upstage
Founded: 2020
United States
www.upstage.ai/blog/en/solar-pro-4

Company Information

Upstage AI
Founded: 2020
United States
www.upstage.ai/news/introducing-upstage-japan

Alternatives

Solar Pro 2

Solar Pro 2

Upstage AI

Alternatives

Solar Mini

Solar Mini

Upstage AI
Solar Mini

Solar Mini

Upstage AI
Solar Pro 2

Solar Pro 2

Upstage AI
Seed2.1 Turbo

Seed2.1 Turbo

ByteDance
Phi-4-reasoning

Phi-4-reasoning

Microsoft
Pokee-Isaac

Pokee-Isaac

Pokee AI
Xgen-small

Xgen-small

Salesforce

Categories

Categories

Integrations

Upstage AI
AWS Marketplace
AWS Trainium
Amazon Web Services (AWS)
Hermes Agent
OpenAI
OpenRouter
Solar Mini

Integrations

Upstage AI
AWS Marketplace
AWS Trainium
Amazon Web Services (AWS)
Hermes Agent
OpenAI
OpenRouter
Solar Mini
Claim Solar Pro 4 and update features and information
Claim Solar Pro 4 and update features and information
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