# Upstage — Introducing Solar Pro 2

- Company: Upstage (upstage.ai)
- Announced: 2025-07-10
- Category: not stated
- Coverage: not counted
- Announcement: yes
- Group: announcements
- Source: https://www.upstage.ai/news/solar-pro-2
- Record: https://forck.live/items/18431-introducing-solar-pro-2
- Subject: Solar Pro / Solar Mini

Upstage today officially released Solar Pro 2, its next-generation large language model (LLM) designed to perform complex reasoning and tool-integrated task execution—all with just 31 billion parameters. Solar Pro 2 builds on the foundation of its predecessor with a significant performance upgrade, increasing its parameter size from 22B to 31B while remaining in the small language model (sLLM) category. The model introduces a hybrid architecture with two user-selectable modes: “Chat Mode” for fast responses and “Reasoning Mode” for structured, multi-step logical thinking. Its Chain-of-Thought (CoT) reasoning approach significantly improves performance in advanced tasks like math, coding, and logic-heavy workflows. “Solar Pro 2 represents a new generation of AI agents that don’t just talk but think, reason, and act,” said Sung Kim, CEO and co-founder of Upstage. “Our mission is to fundamentally reshape how work gets done with AI, and Solar Pro 2 marks a key milestone in advancing that future of work.” …

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Record: https://forck.live/items/18431-introducing-solar-pro-2
Catalogue: https://forck.live/llms.txt
Current issue: https://forck.live/feed.md