System Prompt for Claude Opus 4.6

A user from the LocalLLaMA community has published a full system prompt for Claude Opus 4.6. The sharing occurred via a post on Reddit, with direct links to the full prompt hosted on GitHub.

The availability of this prompt offers a window into the instructions and guidelines that define the model's behavior. Analyzing these prompts can be helpful in better understanding how large language models (LLMs) are instructed and controlled.

For those evaluating on-premise deployments, there are trade-offs to consider. AI-RADAR offers analytical frameworks on /llm-onpremise to evaluate these aspects.