Introducing Upstage: Solar Pro 3

Solar Pro 3 delivers efficient text generation for Korean and beyond.

Input: text Output: text Context: 128,000 tokens Release: 2026-01-27
Upstage's Solar Pro 3, released on January 27, 2026, is a cutting-edge Mixture-of-Experts (MoE) language model designed to excel in text generation. With a remarkable 128,000 context length, it effectively handles complex queries and generates coherent responses. The model boasts 102 billion total parameters, with 12 billion active parameters utilized for each forward pass, ensuring both performance and efficiency. It supports text input and output modalities, making it versatile for various applications. Solar Pro 3 is particularly optimized for the Korean language while also accommodating English and Japanese, making it a valuable tool for multilingual communication and content creation.

Use Cases

Here are a few ways teams apply Upstage: Solar Pro 3 (free) in practice—from fast drafting to multimodal understanding. Adapt these ideas to your workflow.

Generate multilingual content effortlessly

Enhance communication in Korean, English, and Japanese

Create detailed responses for various applications

Key Features

A quick look at the capabilities that make this model useful in real projects.

102B total parameters for robust performance

12B active parameters per forward pass

128,000 context length for complex text handling

Optimized for Korean with English and Japanese support

Supports text input and output modalities

Specs

Overview
Vendor
upstage
Model ID
upstage/solar-pro-3:free
Release
2026-01-27
Modalities & context
Input
text
Output
text
Context
128,000 tokens
Parameters & defaults

Supported parameters: include_reasoning, max_tokens, reasoning, response_format, structured_outputs, temperature, tool_choice, tools

Defaults: temperature 0.2, top_p 0.95

Benchmark tests: Upstage: Solar Pro 3 (free)

We ran this model against a few representative prompts to show its range. Review the outputs below and be the judge.

Text

Prompt:
Write 150 words on how AI might positively upend work, leisure and creativity
AI is poised to upend work, leisure, and creativity in ways that amplify human potential while reshaping the very fabric of daily life. In the workplace, generative models automate repetitive tasks, freeing professionals to focus on strategic thinking and interpersonal collaboration. Real‑time data synthesis and predictive analytics enable teams to iterate faster, turning ideas into prototypes within hours rather than weeks. This shift not only boosts productivity but also democratizes expertise, allowing junior staff to access senior‑level insights through conversational interfaces. Leisure is transformed as AI curates personalized experiences—dynamic storytelling, adaptive gaming worlds, and on‑demand music that evolves with mood. Virtual companions can suggest activities, manage schedules, and even co‑create content, turning passive consumption into interactive exploration. Creativity flourishes as AI becomes a co‑author, offering endless variations of text, visual, and auditory material. Artists and writers can experiment with novel styles, remix cultural motifs, and push boundaries without the constraints of traditional tools. By handling the technical scaffolding, AI lets creators concentrate on emotional resonance and conceptual depth, fostering a renaissance of imagination. Together, these changes promise a future where work is meaningful, leisure is immersive, and creativity is boundless.
Run this prompt on Upend.AI

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Chat with Solar Pro 3
up.end
/ˌəpˈend/
verb

To “upend” means to completely disrupt, overturn, or drastically change the established order or structure of something. It implies a significant shift or alteration that can potentially have far-reaching consequences. When something is upended, it is turned upside down or transformed in a way that challenges conventional norms or expectations. The term often carries a sense of innovation, transformation, and sometimes even a hint of upheaval, indicating that the changes are not just minor adjustments but rather a fundamental reimagining of the status quo.