Upstage has unveiled its self-developed open-weight large language model (LLM) 'Solar Open2,' focusing on creating AI agents capable of performing actual tasks beyond simple question-and-answer interactions. The company plans to apply this technology to the portal 'Daum' and public services, aiming to provide 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 the Solar Open2 model along with a technical report detailing its learning methodology.
The standout feature of Solar Open2 is its optimization for AI agents that can execute tasks such as document creation, Excel analysis, and presentation preparation based on user instructions. The model is designed to focus on completing actual work 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 given instructions."
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 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 known as 'LiveCodeBench,' Solar Open2 scored 92.4, surpassing the comparison models DeepSeek 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, it aims to support local governments across the country in easily adopting AI agents based on its recently acquired platform, 'Timely.'
Furthermore, the company 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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