您的郵件在每個收件匣中都與100多封其他郵件競爭。這些提示詞幫助您打造能被開啟的主旨行、不會讓人厭煩的培養序列,以及真正會被點擊的行動呼籲。已在ChatGPT、Gemini和Claude上測試,讓您知道哪個模型能寫出受眾不會忽視的郵件。
| 您想做的事 | 最適合 |
|---|---|
| 建立高開信率的郵件主旨行 | ChatGPT |
| 建構新訂閱者的歡迎郵件序列 | Claude |
| 重新激活休眠客戶 | Gemini |
| 設計長期培養的郵件序列 | ChatGPT |
| 設計會被閱讀的電子報格式 | Gemini |
| 規劃郵件的A/B測試 | Claude |
提示詞
建立高開信率的郵件主旨行
I'm sending an email about [topic/offer/announcement]. Audience: [who they are and what they care about] Email type: [newsletter/promotional/transactional/re-engagement] Brand voice: [formal/casual/witty/urgent] Current open rate: [percentage if known] Generate: 1. 10 subject lines using curiosity gaps 2. 10 subject lines using specificity and numbers 3. 10 subject lines using personalization placeholders 4. 5 subject lines with matching preview text 5. Rank the top 5 overall with reasoning 6. 3 subject lines to AVOID (common mistakes in [industry])
最適合: CHATGPT
ChatGPT能產生最多樣的主旨行變體,也能有效建立A/B測試的配對。擅長避開垃圾郵件過濾器的措辭。
已測試 Feb 15, 2026
進階技巧
主旨行控制在40個字元以下。考慮手機顯示,較短的主旨行能完整顯示,開信率更高。
建構新訂閱者的歡迎郵件序列
Build a welcome email sequence for new [subscribers/customers/trial users]. Product/service: [what you offer] Main value proposition: [why they signed up] Desired end action: [purchase/upgrade/book a call] Sequence length: [5-7 emails over how many days] For each email, provide: 1. Send timing (days after signup) 2. Subject line and preview text 3. Full email copy (150-250 words each) 4. The single CTA for each email 5. The psychological principle behind each email's approach 6. Segmentation trigger: what to do if they click vs. don't click
最適合: CLAUDE
Claude能設計最自然流暢的歡迎序列,不強迫推銷但能提供價值的語調出色。
已測試 Feb 15, 2026
進階技巧
設定第一封郵件在註冊後5分鐘內送達。註冊後是互動度最高的時刻。
重新激活休眠客戶
I have [number] subscribers who haven't opened an email in [timeframe]. What they originally signed up for: [lead magnet/offer] Last email topic they engaged with: [if known] What's changed since they went cold: [new features, offers, content] Build a 3-email re-engagement sequence: 1. Email 1: 'We miss you' approach with a compelling reason to return 2. Email 2: Best content/offer roundup of what they've missed 3. Email 3: Final email with clear stay-or-go choice 4. Subject lines for each (optimized for cold subscribers) 5. Win-back incentive recommendations 6. Sunset policy: when to remove unresponsive subscribers and exact criteria
最適合: GEMINI
ChatGPT能建立最有效的再互動郵件,不顯得強迫地傳達「歡迎回來」的訊息。
已測試 Feb 15, 2026
進階技巧
在再互動之前,先分析為什麼流失。在不了解原因的情況下重複相同的做法沒有效果。
設計長期培養的郵件序列
I need an automated drip campaign for [purpose: lead nurture / onboarding / upsell / event]. Trigger event: [what starts the sequence] Audience segment: [who enters this campaign] Campaign goal: [desired conversion] Timeline: [days/weeks the campaign runs] Existing content assets: [blog posts, case studies, webinars to reference] Design the complete campaign: 1. Campaign flowchart with decision branches (if opened/clicked vs. didn't) 2. Email copy for each node (subject, body, CTA) 3. Wait times between emails with reasoning 4. Branch logic: what happens at each decision point 5. Exit conditions: when someone leaves the campaign 6. KPIs to track at each stage and benchmarks to aim for
最適合: CHATGPT
Gemini能設計最有邏輯的滴漏式序列,各郵件之間的時間間隔和內容進展出色。
已測試 Feb 15, 2026
進階技巧
郵件之間的最佳間隔因受眾而異。B2B一般3到5天,B2C一般1到3天,但透過測試來最佳化。
設計會被閱讀的電子報格式
I want to launch a [frequency] newsletter for [audience]. Topics I'll cover: [3-5 content areas] Tone: [educational/entertaining/curated/opinionated] Time I can spend per issue: [hours] Monetization plan: [ads/sponsorships/premium/lead gen/none yet] Design my newsletter: 1. A name and tagline (5 options with reasoning) 2. A repeatable section structure (e.g. intro, main story, quick hits, CTA) 3. Word count targets for each section 4. A content sourcing system: where to find material each week 5. A sample first issue with full copy 6. Growth strategy for the first 1,000 subscribers
最適合: GEMINI
ChatGPT能設計最易讀的電子報版面,段落分隔和視覺層次清晰。
已測試 Feb 15, 2026
進階技巧
電子報的長度目標是500字以下。太長的電子報即使被開啟也不會被讀完。
規劃郵件的A/B測試
I want to A/B test my emails to improve [open rate/click rate/conversion rate]. Current metrics: [open rate, click rate, list size] Email platform: [Mailchimp/ConvertKit/ActiveCampaign/etc.] Send frequency: [how often you email] Biggest unknown: [what you're most unsure about] Build a 4-week testing plan: 1. Week 1 test: what to test, hypothesis, and how to measure 2. Week 2 test: building on week 1 results 3. Week 3 test: a more advanced element to test 4. Week 4 test: final optimization 5. Minimum sample size needed per test for statistical significance 6. A testing rules document: when to call a winner and when to keep testing
最適合: CLAUDE
Gemini能建立最具統計學基礎的A/B測試計劃,樣本大小的計算和測試期間的建議準確。
已測試 Feb 15, 2026
進階技巧
一次只測試一個變數。同時改變主旨行和內文,就無法知道是哪個影響了效果。
基於實際測試結果 — 非假設推測。 查看測試方法
Gemini
Best for re-engagement campaigns and newsletter design. Creates sustainable email formats with realistic production timelines. Less effective at emotional or story-driven copy.
結果來源: Gemini 2.0 Flash · 已測試 Feb 15, 2026ChatGPT
Best for subject lines, drip campaign logic, and platform-specific copy. Generates the most natural-sounding email copy but can over-optimize for clicks at the expense of authenticity.
結果來源: GPT-4o · 已測試 Feb 15, 2026Claude
Best for welcome sequences and A/B test design. Builds psychologically sophisticated email journeys and catches statistical errors in testing plans. Sometimes writes emails that are too long.
結果來源: Claude 3.5 Sonnet · 已測試 Feb 15, 2026Grok
Generates the punchiest subject lines and writes emails with a distinctive, scroll-stopping voice. Strong at creating urgency without sounding desperate. Less effective at building long-form nurturing sequences that require patience and gradual trust-building.
結果來源: Grok 2 · 已測試 Feb 15, 2026Write the PS line first. The PS is the second most-read part of any email after the subject line. Write it before the body and put your most important message there. Many people scroll straight to the bottom.
One email, one ask. Every email with multiple CTAs converts worse than one with a single clear action. If you have three things to say, send three emails. AI will try to stuff everything in — tell it to pick one CTA.
Send time matters less than you think. The difference between the 'best' and 'worst' send time is usually 2-3% open rate. Spend that optimization energy on better subject lines instead — they swing open rates by 20%+.