Prompt Engineering

Tell It What to Be, and It Becomes That

By specifying a role in the System Prompt, the same model can transform into a completely different assistant. Role-play is the most fundamental and effective Prompt technique. Click the roles and formats below to see how the output changes.

Choose a role (switches System Prompt)

Same question, different roles

System Prompt (role definition)

👤 User asks: "I've been under a lot of stress lately and feel exhausted"

Role response (same question, different role)

Output format control

🎭 Role = system preset. Every AI product is essentially a different role definition written into the System Prompt. Change the role, change the product.