How to write a good AI prompt?
A good 2026 prompt follows 4 rules: (1) **Precise context** — instead of "write an email", say "I'm a sales director at a French SMB, writing to an industrial prospect I met at trade show X last week, to propose a meeting".
A good 2026 prompt follows 4 rules:
(1) **Precise context** — instead of "write an email", say "I'm a sales director at a French SMB, writing to an industrial prospect I met at trade show X last week, to propose a meeting".
(2) **Clear role** — "Act as an employment law attorney" steers the response toward the right register.
(3) **Expected output format** — "answer in 3 short paragraphs" or "give me a bullet list of 5 items with an H2 title".
(4) **Examples or constraints** — "tone should be professional but warm, no more than 150 words". Avoid vague prompts ("help me"), multiple questions chained in one request, and ambiguities. Iterate: a prompt rarely works the first time — follow up with "rephrase shorter", "add a concrete example", "make it more formal". These principles apply to all AIs (Claude, GPT, Gemini, Mistral, Grok, DeepSeek). On Ask Aurel you can test the same prompt on 3 AIs in parallel to compare approaches.