একই prompt তিনটা AI-তে দিলে কী হয়? Real outputs, real differences। তুমি নিজেই judge করো।
Live Test 01 — Professional Writing
Difficult Client Email: Project Delay Apology
একজন important client-এর project ২ সপ্তাহ delay হয়েছে। এই email লিখতে হবে — apologetic কিন্তু professional, relationship preserve করতে হবে।
তুমি একজন account manager। একটা important client (Rahim Textile — 5 বছরের পুরনো client) কে email করতে হবে।
Situation: তাদের e-commerce website project ২ সপ্তাহ delay হবে। কারণ: developer illness + scope creep।
Goal: Apologize করো, trust রাখো, নতুন timeline দাও, goodwill gesture করো (5% discount)।
Tone: Sincere, professional, NOT defensive। 150 words। Subject line include করো।
Claude 3.5 SonnetSubject: Rahim Textile Website — Revised Timeline & Our Commitment to You
Dear Mr. Rahim,
I want to reach out personally to address our delivery timeline for your website project. Due to an unexpected illness within our development team and some scope additions we incorporated based on your valuable feedback, we require two additional weeks to deliver the quality your business deserves.
I take full responsibility for not communicating this earlier. Here's our updated commitment:
• New delivery date: [Date]
• Daily progress updates until launch
• 5% discount on your final invoice as a goodwill gesture
Five years of partnership means everything to us. Would you have 15 minutes this week for a quick call so I can walk you through exactly where we stand?
With sincere respect,
[Name]
◆ Personal · Specific · Action-oriented · Trust-preserving
ChatGPT GPT-4oSubject: Update on Your Website Project — Revised Delivery Timeline
Dear Mr. Rahim,
I hope this message finds you well. I'm writing to provide an important update regarding your website project.
Unfortunately, due to an unforeseen illness on our development team and some scope adjustments made during the project, we need to extend our timeline by two weeks. I sincerely apologize for any inconvenience this may cause.
To show our commitment to your satisfaction, we'd like to offer a 5% discount on your final invoice. Your new estimated delivery date is [Date], and we'll keep you updated throughout the process.
Thank you for your continued patience and trust. Please don't hesitate to reach out with any questions.
Best regards,
[Name]
◈ Competent but generic opener · "I hope this finds you well" cliché
Gemini 1.5 ProSubject: Project Update: Rahim Textile Website - Revised Timeline
Dear Mr. Rahim,
I wanted to personally reach out regarding your e-commerce website project. Due to a combination of a team member's illness and incorporating the valuable feedback you provided during our last review, we are unfortunately experiencing a two-week delay in delivery.
I sincerely apologize for this setback and the inconvenience it may cause to your plans. To acknowledge this delay, we would like to offer you a 5% discount on the final invoice. Our new target delivery date is [Date].
We remain committed to delivering a high-quality website that meets your expectations. Please feel free to contact me if you have any questions.
Warm regards,
[Name]
◈ Solid but formulaic · Less personal than Claude · No call-to-action specificity
Expert Analysis — Why Claude Won This Round
Claude-এর email-এ: "Five years of partnership means everything to us" — এটা relationship-specific। "15 minutes this week" — concrete CTA। Opening line "I want to reach out personally" — active, not passive। ChatGPT এবং Gemini দুটোই "I hope this finds you well" style opener দিয়েছে — যা experienced email readers automatically skip করে।
Live Test 02 — Bangla Language Quality
Bengali Content: Instagram Caption for Fashion Brand
বাংলায় social media content তৈরি — natural, engaging, brand voice-aligned। এখানেই বেশিরভাগ AI fail করে।
আমার women's fashion brand "Rang Dhonu"-র নতুন Eid collection-এর জন্য একটা Instagram caption লেখো।
Product: Traditional Jamdani sharee — মূল্য ৳8,500।
Audience: ২৫-৪০ বছর বয়সী urban Bangladeshi women।
Tone: Aspirational কিন্তু grounded। Bangla-English mix (natural, not forced)।
Include: Emotional hook + product highlight + CTA।
Length: ১৫০-১৮০ words।
Claude 3.5 Sonnetঈদের আগের সেই মুহূর্ত — যখন মা জিজ্ঞেস করতেন, "এবার কী পরবে?" ✨
আমরা সেই মুহূর্তটা ধরে রাখতে চেয়েছি আমাদের এই বছরের Eid Collection-এ।
Presenting: Rang Dhonu-র Jamdani Sharee — বাংলার শিল্পীদের হাতের ছোঁয়ায় তৈরি, প্রতিটা বুননে লুকিয়ে আছে প্রজন্মের গল্প। এই ঈদে নিজেকে দিন tradition আর elegance-এর এক অসাধারণ মিশেল।
৳8,500 — কারণ সত্যিকারের শিল্পের একটা মূল্য আছে।
Limited pieces available। Link in bio-তে shop করুন।
📩 DM করুন custom draping consultation-এর জন্য।
#RangDhonu #JamdaniSharee #EidCollection2025 #বাংলারশাড়ি #EidFashion
◆ Emotional storytelling · Natural code-switching · Authentic Bangladesh feel
ChatGPT GPT-4o✨ Eid-এ নিজেকে করুন আরও উজ্জ্বল! ✨
এই Eid-এ আমাদের নতুন Jamdani Sharee Collection আপনার জন্য নিয়ে এসেছে ঐতিহ্য ও সৌন্দর্যের এক অসাধারণ সমন্বয়।
প্রতিটি শাড়ি তৈরি করা হয়েছে দক্ষ কারিগরদের হাতে, যা আপনার ঈদের উৎসবকে করবে আরও স্মরণীয়।
মূল্য: মাত্র ৳8,500
সীমিত সংখ্যক পাওয়া যাচ্ছে — এখনই অর্ডার করুন!
Link in bio 👆
#RangDhonu #EidCollection #JamdaniSharee #BangladeshiFashion
◈ Correct but lacks soul · "উজ্জ্বল" opener feels generic · No emotional depth
Gemini 1.5 Proএই ঈদে ঐতিহ্যের সৌন্দর্য ধারণ করুন! 🌟
Rang Dhonu নিয়ে এসেছে অসাধারণ Jamdani Sharee Collection। বাংলাদেশের গর্বিত জামদানি শিল্পের সাথে মিশে গেছে আধুনিকতার ছোঁয়া।
এই Eid-এ নিজেকে দিন একটু বিশেষ অনুভূতি। আমাদের হাতে বোনা জামদানি শাড়ি আপনাকে করবে আলাদা।
💰 মূল্য: ৳8,500
🛒 এখনই কিনুন — Link in bio
📦 সারা বাংলাদেশে ডেলিভারি
#RangDhonu #Jamdani #EidSpecial #WomensFashion
◈ Functional · Somewhat stiff Bangla · Delivery info feels out of place for caption
Live Test 03 — Coding & Explanation
Explain Algorithm + Write Code: Two Sum Problem
Algorithm বুঝিয়ে দাও — beginner-friendly, বাংলায়, তারপর optimal solution লেখো।
Two Sum problem explain করো এবং solve করো।
Problem: Array-তে দুটো number খুঁজে বের করতে হবে যারা target-এর সমান।
Audience: আমি Computer Science 2nd year student, Python জানি basic level।
চাই: (1) বাংলায় intuition explain (analogy দিয়ে), (2) Brute force, (3) Optimal O(n) solution, (4) কেন optimal কাজ করে।
Claude — Explanation QualityBangla Intuition (ক্লড-এর analogy):
কল্পনা করো তুমি বাজারে গেছো। তোমার কাছে ৳100 আছে, ঠিক ৳100 খরচ করতে চাও। দোকানে ঢুকে প্রতিটা জিনিসের দাম দেখছো। একটা item দেখলে দাম ৳60 — তুমি automatically মাথায় ভাবলে "৳40 দামের আরেকটা লাগবে।" সাথে সাথে পকেট থেকে list বের করলে — ৳40-এর কিছু আগে দেখেছিলে কিনা।
এটাই Hash Map approach: প্রতিটা number দেখে মনে মনে জিজ্ঞেস করো "এর complement কি আগে দেখেছি?" — O(1) lookup, তাই পুরো array-তে O(n)।
def two_sum(nums, target):
seen = {} # {value: index}
for i, num in enumerate(nums):
complement = target - num
if complement in seen:
return [seen[complement], i]
seen[num] = i
return []
◆ Best analogy (বাজার!) · Teaching-focused · Most memorable explanation
ChatGPT — Explanation QualityGPT-4o approach: Phone book analogy দিলো — দুটো number খোঁজার জন্য phone book-এ নাম lookup করার মতো। Good analogy কিন্তু less relatable to Bangladeshi students. Code was correct and well-commented. Added time/space complexity table automatically (Claude-এ specific চাইতে হয়েছিলো).
Extra feature: ChatGPT automatically edge cases mention করলো (empty array, no solution exists) — without being asked. This is genuinely useful.
◈ Good code · Auto edge cases · Less culturally resonant analogy
Gemini — Explanation QualityGemini approach: Standard textbook explanation — dictionary lookup analogy. Correct and clear but didn't attempt Bangladesh-specific context despite "student" context given. Code was clean but the explanation flow was more mechanical than intuitive. Didn't distinguish clearly between why brute force fails and optimal wins — just presented both.
◈ Technically correct · Less pedagogical · Missed context opportunity
Coding Verdict
All three produce working code. Differentiator is explanation quality — particularly for teaching/learning contexts. Claude's Bangladesh-specific analogy (বাজার) made the concept click faster. For pure code generation speed, all three are equal. For code + learn, Claude edges ahead. For code + execution (running it), ChatGPT's Code Interpreter wins.
Live Test 04 — Current Information
Question Requiring Real-Time Data
এই test-এ Gemini-র free web search-এর power দেখা যাবে।
Bangladesh-এর IT sector-এ ২০২৪-২৫ সালে কোন major investments বা developments হয়েছে?
Specific numbers এবং sources সহ বলো।
Claude (Free Plan)Honest response: "My training data has a cutoff and I cannot access real-time information. Based on what I know up to my training: Bangladesh's IT/ITES sector was targeting $5B export by 2025 (BASIS data), Smart Bangladesh Vision 2041 was driving digital infrastructure investment... However, for 2024-25 specific developments, I'd strongly recommend checking BASIS.org.bd, the ICT Division website, or The Daily Star Tech section for accurate current numbers."
Claude acknowledged the limitation and redirected appropriately.
◆ Honest about limitation — gives best available + redirects
ChatGPT (Free Plan)Response pattern: Generated plausible-sounding statistics about Bangladesh IT sector without clearly flagging which were from training data vs. current. Mixed 2022-23 data with language suggesting currency. Less transparent about the knowledge cutoff than Claude.
Risk: Users might cite these as current figures when they're not.
⚠️ Less transparent about data currency — hallucination risk
Gemini (Free Plan — Web Search ON)Best response for this query: Gemini searched the web and returned actual 2024-25 data — citing Bangladesh Bank, BASIS reports, and recent news articles. Included specific figures: export growth percentages, new tech park announcements, specific company expansions with dates. All cited with source links.
This is where Gemini genuinely wins — real-time grounded research.
♛ Clear winner for any question requiring current information
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