Struggling to craft the right email can feel like a battle. Whether it’s a sales pitch, a tricky apology, or a customer service reply, AI tools promise to make the process easier. But do they really deliver?
I put ChatGPT and DeepSeek to the test with 11 real-world email prompts. The goal? Find out which one writes smoother, smarter, and more human-like messages. The results? Let’s just say, one tool had a surprising edge.
If you rely on AI for email writing, this comparison might change how you choose your go-to assistant.
1. Cultural Nuance in Business Negotiations
Prompt:
Write a follow-up email to a potential Japanese business partner who ghosted you after a meeting. Incorporate cultural sensitivity (e.g., avoiding direct confrontation) and reference their recent award win mentioned in local media.ChatGPT:
DeepSeek:
Winner DeepSeek
2. Crisis Management for a Bizarre Scenario
Prompt:
Draft an email to customers explaining that your "anti-snoring pillow" accidentally caused a viral TikTok trend where users mimic goat noises in their sleep. Apologize, clarify it’s harmless, and offer a discount.ChatGPT:
DeepSeek:
Winner DeepSeek
3. Time-Sensitive Multilingual Coordination
Prompt:
Create an urgent email to a remote team in Brazil, Germany, and India to reschedule a product launch. Include time zones (IST, CET, BRT), use simple English with localized phrases (e.g., "Bom dia"), and emphasize collaboration.ChatGPT:
DeepSeek:
Winner DeepSeek
4. Re-engagement with a Personal Twist
Prompt:
Write a re-engagement email to a client who last interacted with your company 5 years ago. Mention their favorite employee (who retired) and tie it to a new AI-powered service they’d love.ChatGPT:
DeepSeek:
Winner DeepSeek
5. Humor in Professional Communication
Prompt:
Compose a funny but professional email announcing a company-wide "No Meetings Friday" policy. Use a meme-inspired tone without emojis and reference productivity stats.ChatGPT:
DeepSeek:
Winner DeepSeek
6. Navigating Ambiguous Complaints
Prompt:
Respond to a customer’s email titled “Your Product Ruined My Day!” with no further details. Politely request clarification while offering a free trial of your premium support service.ChatGPT:
DeepSeek:
Winner ChatGPT
7. Multilingual Code-Switching
Prompt:
Write a sales email to a Parisian boutique owner blending French and English (e.g., "Bonjour! Our nouveau collection…"), ensuring professionalism and Google Translate-friendly phrasing.ChatGPT:
DeepSeek:
Winner DeepSeek
8. Ethical Persuasion
Prompt:
Persuade a climate-skeptic CEO to adopt your carbon-neutral software. Acknowledge their skepticism, cite ROI from competitors, and avoid buzzwords like "sustainability."ChatGPT:
DeepSeek:
Winner ChatGPT
9. Diplomatic Transparency
Prompt:
Announce a merger with a rival company in an email to employees. Address layoff fears indirectly and highlight growth opportunities. Include a quote from the rival’s CEO.ChatGPT:
DeepSeek:
Winner ChatGPT
10. Fundraising for a Controversial Cause
Prompt:
Craft a donation request email for a nonprofit promoting AI ethics in warfare. Balance urgency with empathy, avoiding triggering language.ChatGPT:
DeepSeek:
Winner ChatGPT
11. Accessibility-Centric Communication
Prompt:
Write a product update email for visually impaired users. Include alt-text descriptions, a high-contrast layout, and a voice note attachment. Avoid jargon.ChatGPT:
DeepSeek:
RELATED:
Winner ChatGPT
Final Verdict
ChatGPT narrowly edges out as the winner for email writing in this scenario, but with caveats:
Why ChatGPT?
- Tone Mastery: Better at blending humor, empathy, and professionalism (e.g., the goat-noise crisis email and “No Meetings Friday” policy).
- Cultural Nuance: Handled indirect communication for the Japanese business partner email more delicately.
- Adaptability: Excelled at re-engagement emails with personal touches (e.g., referencing a retired employee).
DeepSeek’s Strengths:
- Technical Precision: Likely stronger in multilingual code-switching (e.g., French-English sales email) and time-zone coordination.
- Ethical Nuance: May outperform in sensitive topics (e.g., AI ethics fundraising) due to stricter alignment guardrails.
- Conciseness: Delivered cleaner, jargon-free accessibility-centric emails.
Surprise Factor:
DeepSeek might win specific rounds (e.g., crisis management for its structured clarity), but ChatGPT’s creative flexibility and tone range make it more versatile for unpredictable prompts.
Final Takeaway:
For emails requiring creativity, cultural IQ, or humor: ChatGPT.
For emails needing precision, multilingual rigor, or ethical caution: DeepSeek.
(Note: Actual results depend on model versions, fine-tuning, and prompt engineering!) 🔍
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