Claude: System Prompts
What happened
Claude now supports system prompts, letting developers prepend a special instruction that shapes the model’s behavior, tone, and knowledge for the entire conversation. This feature works like a hidden, immutable message that the model sees before any user input, enabling more consistent and controllable outputs without cluttering the chat history.
Why it matters
System prompts give developers finer control over Claude’s responses, making it easier to build reliable, purpose‑specific AI applications and setting a new standard for prompt engineering across the industry.
Is this a big deal?
Get stories like this every morning
The day's AI news in plain English, in your inbox at 8:30 IST. Free.
More from Anthropic
Anthropic Upgrades Claude Code Projects to Run Parallel AI Workers Hands-FreeAnthropic · 14 Nov 2026Claude designed FPGA scaler board for 6th-gen consolesAnthropic · 13 Nov 2026I asked Claude Fable 5.2 to turn my site into a 90s Silicon Graphics workstationAnthropic · 13 Nov 2026Anthropic is endorsing SB 53Anthropic · 13 Nov 2026Understanding and addressing AI harmsAnthropic · 13 Nov 2026This page was collected from platform.claude.com and summarised automatically by AIPulsee's pipeline. See how it runs.