Best Open-Weight LLMs for AI Agents in 2026 (Compared) A head-to-head guide to open-weight LLMs for agents in 2026: Kimi K2.6, DeepSeek V4, GLM-5.1, Qwen 3.6. Which to pick for tool-use, context, or cost. Model Comparison June 6, 2026 ai-agentopen-source-llmkimi-k2.6
