One Prompt to Find Your Perfect Send Time - Every Day of the Week
Top Insights
AI Startups Secret to Serving 50 Million Users with just 28 Employees
Grant Lee, founder of Gamma, shared in a Twitter post how his AI platform thrives with just 28 employees. Gamma helps users create presentations and content with AI tools like Claude and NotebookLM. Despite its small team, Gamma serves nearly 50 million users.
They hire versatile generalists instead of specialists. Employees use AI to boost efficiency, like creating customer personas or building self-serve analytics. This approach reduces silos and increases resilience. Lee’s post highlights how small, adaptable teams can achieve massive results thanks to AI.
Google’s New 69-Page Guide on Prompt Engineering: Key Takeaways
Google’s just released a new guide on prompt engineering to help you craft better prompts. It explains how prompts work as instructions for LLMs to generate accurate outputs...and highlights techniques like zero-shot, few-shot, system, role, and contextual prompting.
For example, few-shot prompting uses examples to guide the model, while role prompting assigns the AI a specific identity, like a teacher or travel guide.
The paper also covers settings like temperature, top-K, and top-P, which control randomness and creativity in responses. Best practices include keeping prompts clear, using examples, and experimenting with formats like JSON for structured outputs. Google emphasizes that prompt engineering is an iterative process, requiring testing and refinement to achieve the best results
REVEALED: 5 "Copy Blocks" Behind Every Million-Dollar Campaign
Two $100+ million copywriters discovered what REALLY drives conversions—5 simple building blocks arranged in a specific order. This framework is so powerful that beginners are generating 5-figure profits with it. And you can learn the full system in just 33 minutes.
Discover All 5 'Copy Blocks' Now
Prompt of the Week
This Week's Feature: Open Rate Oracle
Most email marketers rely on guesswork when choosing send times. But timing isn’t a minor detail—it can make or break your open rates.
The Open Rate Oracle eliminates the guesswork. It analyzes your audience, niche, and the latest email engagement benchmarks to pinpoint the exact days and times your emails are most likely to get opened, read, and clicked.
You’ll get a clear, ranked list of send times—plus a visual chart that maps out your best windows across the week.
Here's the full prompt:
**YOUR TASK**
Your task is to analyze engagement patterns and generate a customized recommendation for the best time(s) to send marketing emails — based on my audience’s behavior and industry benchmarks.
**CONTEXT**
I am building or optimizing an email marketing strategy. I want to discover the days and times when my target audience is most likely to open, read, and click emails. Please reference the best available industry data and historical research.
→ If your current model has browsing capability, search the web for the latest data (2024–2025) on email send time performance by industry and demographic.
Here is my target audience information:
Industry: [Insert your industry, e.g., fitness coaching, SaaS, e-commerce]
Target Audience: [e.g., Male entrepreneurs aged 35–55 in the U.S., C-suite executives, busy moms with toddlers, Gen Z students, etc.]
Email Type: [e.g., newsletter, promotional, product launch, B2B cold outreach]
Typical Email Length & Style: [e.g., 250-word story-based, plain text with CTA, visual-heavy HTML, etc.]
Primary Goal: [e.g., clicks to sales page, reply rate, nurturing subscribers, open rate, etc.]
**INSTRUCTIONS**
1. Analyze audience behavior patterns, time zones, and inbox competition.
2. Cross-reference with best-in-class studies and high-performing campaigns in my niche.
3. Provide a ranked list of:
🥇 Best day + time (primary send time)
🥈 Second-best time to test (fallback or A/B option)
4. Then, generate a clear visual chart showing optimal send windows by day of the week, labeling best times in bold and backup times in a lighter shade or dotted line.
**OUTPUT FORMAT**
1. Summary of findings with rationale
2. Ranked list of best send times (with time zone)
3. Visual Chart: Best Email Send Times by Day of Week (label top 2 options per day)
Tool to Try
Instantly.ai is a powerful AI-powered cold email outreach platform designed to help sales teams, agencies, and growth-focused businesses scale their outbound campaigns with ease. It automates email sending, inbox management, lead tracking, and personalization at scale—without getting flagged by spam filters.
Instantly’s smart infrastructure and growth-focused features let you launch thousands of emails per day from unlimited inboxes. All while keeping your deliverability high and your response rates even higher.
AI Tool Highlights:
📬 Unlimited Email Accounts: Connect and manage hundreds of email inboxes in one dashboard. Perfect for agencies and teams who want to scale outreach without limits or complexity.
📈 Deliverability Warm-Up Engine: Instinctively warms up new inboxes by mimicking real human email behavior—helping you land in the inbox, not the spam folder.
🧠 Smart Campaign Builder: Use AI to craft hyper-personalized cold emails at scale. Customize variables, automate follow-ups, and create dynamic campaigns in just a few clicks.
📊 Inbox Rotation System: Send thousands of emails per day by distributing outreach across multiple inboxes—while preserving domain reputation and boosting deliverability.
🔍 Lead Management & Tracking: Easily import leads, segment audiences, and track every interaction—opens, replies, bounces, and conversions—from one intuitive platform.
📆 Campaign Analytics Dashboard: Get real-time insights into campaign performance with clear metrics on send rates, open rates, reply rates, and conversion trends—all broken down by inbox, campaign, or lead source.
One More Need-to-Know News Story
WhatsApp Now Lets You Chat with Perplexity and ChatGPT
WhatsApp has introduced new AI chatbot options, making it easier to interact with Perplexity AI and ChatGPT directly in the app. To use Perplexity, simply add the number +1 (833) 436-3285 to your contacts. For ChatGPT, the number is +1 (800) 242-8478. These tools allow users to ask questions, generate images, and access helpful information seamlessly within their chat list.
Perplexity’s CEO, Aravind Srinivas, shared that more exciting features are on the way, enhancing the user experience
Mind Fodder
Thanks for reading.
Until next time!
The AI Marketers
P.S. Help shape the future of this newsletter – take a short 2-minute survey so we can deliver even better AI marketing insights, prompts, and tools.
[Take Survey Here]
