Warmer AI is an AI writing and personalization platform for cold emails designed for SDRs, sales teams, freelancers and B2B marketers wanting to increase replies, engagement and conversions through unique emails at scale.
This guide includes features, tutorials, pros/cons, pricing, alternatives and FAQs: ideal for lead generation and sales automation in 2025.
Automated cold email generation – Warmer AI creates highly personalized emails leveraging public data, LinkedIn, company websites, sector and prospect role.AI templates and variants – Choose from dozens of AI-generated templates, sector-specific prompts, and create unique variants for A/B testing and mass outreach.Advanced personalization – Each email is custom written citing real details (role, recent activities, news, sector), reducing “spammy” feel.Bulk outreach & sales workflows – Import prospect lists and automatically generate different emails for each, integrating with CRM and sales platforms (HubSpot, Salesforce, Outreach, Lemlist…)Analytics and tracking – Reports on open rates, replies, conversions, and AI-driven suggestions to improve campaign results over time.AI-powered follow-ups – Automate follow-ups and quick replies to increase response rate and prospect engagement.In summary: Warmer AI is the smart solution for anyone wanting to take cold email personalization to the next level without manual effort, leveraging the power of AI.
Step-by-step Guide: How to Use Warmer AI
Sign up and setup – Create an account at warmer.ai, choose your plan and connect your email/CRM platforms.Import or select prospects – Upload your prospect list (CSV, Google Sheets, CRM…) including details like name, company, role, LinkedIn, etc.Choose AI template or prompt – Select from cold email optimized templates or write a custom prompt; Warmer AI generates specific variants for each recipient.Generate and review emails – Warmer automatically creates personalized emails: review, edit or save the best as templates, or generate more variants with one click.Send directly or export – Send through integrated platforms (Outreach, Lemlist…) or export ready emails for use in any campaign tool.Analyze results and optimize – View reports on open, reply, conversion rates; AI suggests continuous improvements and helps test new approaches.This workflow lets you automate cold email writing, speed up personalization, and boost replies/conversions at scale.
Advantages and Disadvantages of Warmer AI
Advantages
Personalized emails at scale – Each recipient gets a truly unique email without manual work, increasing engagement and reply rates.Time saving – Automates entire campaign prep, eliminating repetitive tasks and freeing up time for strategic activities.Easy bulk outreach – Upload thousands of prospects and let Warmer AI generate personalized variants for each, avoiding spam and improving reputation.Workflow integration – Works with leading sales tools, CRM and email platforms for seamless end-to-end management.AI analytics and suggestions – Advanced reporting and practical advice on improving opens, replies, and conversions over time.
Disadvantages
Paid plans only – No permanent free plan, only limited trials. Base plans may be insufficient for large campaigns.Dependent on public data – Advanced personalization requires up-to-date public or CRM data on prospects.Manual review required – Despite powerful AI, it’s always recommended to review generated messages before sending.Less suitable for inbound emails – Focus is outbound/cold emails, not suited for newsletters or traditional email marketing.In summary: Warmer AI is perfect for SDRs, sales, freelancers and agencies wanting more effective outbound campaigns with AI-powered personalization. Less useful for those not doing large-scale cold outreach.
Pricing and Plans
Starter – $49/month. Up to 500 personalized emails/month, AI templates, variants, basic Gmail/Outlook integration.Growth – $99/month. Up to 2000 emails/month, advanced personalization, bulk processing, analytics.Scale – $199/month. Up to 10,000 emails/month, all advanced features, team access, API, full automation.Enterprise – Custom pricing. Advanced APIs, security, dedicated support and training, custom volumes.Prices updated June 2025; check official site for promotions or updates.
Alternatives to Warmer AI
Lavender AI – Great for coaching, writing, and email personalization with real-time sales feedback.Smartwriter.ai – Strong on automatic cold email personalization and LinkedIn outreach.Flowrite – AI writing plugin, faster for single email replies and templates, less bulk-focused.Lemlist – Email campaign automation with image and video personalization, great for sequences and follow-ups.Other tools – Instantly.ai, Outreach.io, Salesloft, Yesware: each with different focuses on automation, analytics, or CRM integration.
FAQ about Warmer AI
What is Warmer AI for?
Automatically generates and personalizes cold emails, increasing replies and conversions in outbound campaigns.
Bulk cold emails, AI variants, templates, advanced personalization, follow-ups, analytics.
Is Warmer AI GDPR compliant?
Yes, it complies with major European and international privacy regulations.
How much does Warmer AI cost?
Plans range from $49/month (Starter) to $199/month (Scale), with custom Enterprise options.
Is Warmer AI suitable for freelancers and agencies?
Yes, perfect for SDRs, sales teams, startups, freelancers, and agencies of all sizes.
Author
Nicolò Caiti
I made MarTech my career. I focus on artificial intelligence applied to digital marketing. In this blog, I analyze how AI is transforming the industry: improving web performance, optimizing digital strategies, and speeding up everyone's work. With years of experience in marketing automation and advanced customer journey management, I share practical insights, case studies, and best practices to help people maximize AI’s potential in their work.I hope you find the answers you are looking for!
