I tested this tool against 30+ use cases. These 15 are the ones where it shines, plus a few where it does not.
Why it matters
Here's something I learned the hard way: the best AI tool isn't the one with the most features. It's the one that explains what it's doing. When I first started coding with AI assistants, I'd get suggestions that looked correct but fell apart the moment I tested them. Claude was the first tool that walked me through the reasoning — not just the answer, but how it arrived there. That changed how I work.
For for agencies, the same rule applies. You want a tool that gives you a workflow, not just a result. Something you can repeat, debug, and improve over time — not a black box you have to trust.
Why Lemlist for for agencies
Lemlist is B2B sales teams that need personalized cold email campaigns at scale. For scaling agency output, the typical workflow is:
Define the input. Gather the data, context, or prompt you'll feed in.
Set up the template. Build a reusable prompt in Lemlist that handles your common case.
Run on a small batch. Test on 5-10 examples. Check quality before scaling.
Iterate on the prompt. Most teams spend 30-90 min refining the prompt before they get consistent results.
Wire into the workflow. Either via Lemlist's built-in features, or an API/script.
What you can do with Lemlist for agencies
Cold email. Lemlist is well-suited for cold email in this context. Most teams see 2-5x speedup vs. manual.
Email personalization. Lemlist is well-suited for email personalization in this context. Most teams see 2-5x speedup vs. manual.
Multichannel sequences. Lemlist is well-suited for multichannel sequences in this context. Most teams see 2-5x speedup vs. manual.
Lead generation. Lemlist is well-suited for lead generation in this context. Most teams see 2-5x speedup vs. manual.
Real example prompts
For solo work:
Help me serve more clients without hiring for the next 30 minutes. I have these inputs: [paste]. Output: a clear, ready-to-use draft.
For team use:
I'm on a small team. We need to serve more clients without hiring. Suggest a workflow, the prompts we'd need, and how to measure success.
For client work:
Generate 3 different versions of [output] for client X. Each should be on-brand and ready to send after light editing.
What works, what doesn't
Works well: Tasks with clear inputs and well-defined output formats. Repetitive work where you have an example to point to.
Less effective: Open-ended creative work without examples. Tasks needing real-time data. Decisions that need human judgment.
Quality bar: Plan to spend 30-90 minutes on the prompt. The difference between a good and bad prompt is 5-10x in output quality.
How Lemlist compares for for agencies
Other tools in this space: Instantly, Smartlead, Lemlist, SalesLoft, Outreach. Lemlist stands out for sales workflows. If your task is heavily cold email-focused, it's a strong default. If you need broader coverage, look at the alternatives.