Solar Open 2

Open-weight model releases this week include Nanbeige 4.2 3B with looped depth sharing, poolside's Laguna S 2.1 (118B sparse MoE, 8B active, 1M-token context), Motif-3-Beta (314B-A13B sparse MoE with …

Upstage, a Korean AI company, released Solar Open 2, an open-weight large language model with 250 billion parameters that activates only 15 billion at a time using a mixture-of-experts structure, desi…

South Korean AI company Upstage released Solar Open 2, an open-weight foundation model optimized for agentic use, featuring a 250B-parameter MoE architecture with 15B active parameters per token and a…