In the pack: ChatGPT, Claude & Gemini Prompts for Sales Reps and Teams
Plain, Specific Subject Lines for a Cold Email
Prompt
Email body: {{EMAIL_BODY}}
Prospect role and industry: {{PROSPECT_ROLE}}
Tone I want: {{TONE}}
Rules:
- Each subject line must be 2 to 6 words, lowercase or sentence case, no emojis, no ALL CAPS, no exclamation marks, no "RE:" or "FWD:" tricks that fake a prior conversation.
- Never promise something the email does not deliver, and avoid spam trigger words like "free", "guaranteed", "act now".
- Each subject must accurately describe what is inside the email.
- Do not claim that any line "will" lift open rates. Treat them as variants to test.
Output:
1. Eight subject lines, grouped by approach: topic-based, question-based, observation-based, and name-the-specific-thing-based.
2. For each, a 10-word note on why it fits this reader.
3. Your top two picks, and a simple way for me to test them against each other without confusing the results (what to hold constant, how many sends to wait for before drawing a conclusion).
4. Preview-text suggestions for the top two.
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About this prompt
“Plain, Specific Subject Lines for a Cold Email” is a free prompt for ChatGPT in the Copywriting category, 180 words long, added to The Prompt Index on October 28, 2026 by The Prompt Index. Copy it with the button above, paste it into ChatGPT or any other AI chat assistant, and send it.
It has 3 placeholders to fill in first:
{{EMAIL_BODY}}, {{PROSPECT_ROLE}}, {{TONE}}.
Use the “Customize this prompt” fields to personalise it before you copy.
Recommended models: ChatGPT, Claude, Gemini.
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