Question 1

What is the Claude (Web) system prompt?

Accepted Answer

The Claude (Web) system prompt is the internal instruction set that defines how Claude (Web) behaves. Anthropic's consumer chat experience on claude.ai and the Claude apps: archived Sonnet 4.6 system prompt (behavior, artifacts, search, and tools).

Question 2

How do I use the Claude (Web) system prompt?

Accepted Answer

Copy the system prompt from this page and use it in your own applications, or study it to understand how Claude (Web) is configured internally.

Question 3

Is the Claude (Web) system prompt official?

Accepted Answer

This prompt is collected from public sources and reverse-engineered for educational purposes. It may not represent the current or official prompt used by Claude (Web).

Claude (Web)

Claude Sonnet 4.6 - Web Chat

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