Running Qwen3.5-27B locally as the primary model in OpenCode
r/LocalLLaMA
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Generative AI
AI Hardware
Open Source AI
This weekend I wanted to test how well a local LLM can work as the primary model for an agentic coding assistant like OpenCode or OpenAI Codex. I picked Qwen3.5-27B, a hybrid architecture model that has been getting a lot of attention lately for its performance relative to its size, set it up locally and ran it with OpenCode to see how far it could go. I set it up on my NVIDIA RTX4090 (24GB) workstation running the model via llama.cpp and using it with OpenCode running on my macbook (connection via Tailscale.