Upstage has unveiled its self-developed open-weight large language model (LLM) 'Solar Open2,' focusing on creating AI agents capable of performing actual work tasks beyond simple question-and-answer interactions. The company plans to apply this technology to the portal 'Daum' and public services, aiming to enhance AI services that citizens can experience in their daily lives.
On July 22, Upstage held a developer conference titled 'Solar Open Weight Day,' where it presented Solar Open2 along with a technical report detailing its learning methodologies.
The standout feature of Solar Open2 is its optimization for AI agents that can execute various work tasks, such as drafting documents, analyzing Excel data, and creating presentations, all while following human instructions. The model is designed to focus on completing tasks rather than merely answering questions.
Kim Sung-hoon, CEO of Upstage, stated, "These days, it’s not enough to just have a good conversation. We focused on developing a model that can carry out tasks to completion when instructed."
The model boasts a total of 250 billion parameters. However, it employs a mixture of experts (MoE) structure, activating only 15 billion parameters during the actual inference process. This allows the AI agent to maintain high performance while reducing inference costs, even when handling large token workloads.
Document processing capabilities have also been enhanced, with the ability to handle contexts of up to 1 million tokens, enabling the analysis of extensive documents like contracts and reports in one go. With quantization applied, it can run on just two NVIDIA H200 GPUs, lowering the cost burden for companies looking to integrate it into their infrastructure.
In the code generation performance evaluation 'LiveCodeBench,' Solar Open2 scored 92.4, surpassing the comparison models DeepSpeed V4-Flash (92.3) and Mistral Medium 3.5 (84.9). Its performance in Korean also ranks highly compared to OpenAI's GPT-5.4 Mini and Anthropic Claude Haiku 4.5.
Upstage plans to expand services that allow citizens to experience AI in their daily lives through Solar Open2. Initially, it will implement a conversational AI agent on the portal 'Daum' to provide various functions such as search, information exploration, document summarization, and schedule management. Additionally, the company aims to support local governments across the country in easily adopting AI agents based on its recently acquired platform 'Timely.'
Furthermore, Upstage intends to expand specialized AI agents in sectors such as finance, law, healthcare, and defense through a consortium. Kim emphasized, "The most important aspect domestically is the virtuous cycle of the AI ecosystem, and our goal is for Solar Open2 to be widely utilized in real work environments."
* This article has been translated by AI.
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