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The AI Talent War Is for Plumbers and Electricians

https://www.wired.com/story/why-there-arent-enough-electricians-and-plumbers-to-build-ai-data-cen...
1•geox•2m ago•0 comments

Show HN: MimiClaw, OpenClaw(Clawdbot)on $5 Chips

https://github.com/memovai/mimiclaw
1•ssslvky1•2m ago•0 comments

I Maintain My Blog in the Age of Agents

https://www.jerpint.io/blog/2026-02-07-how-i-maintain-my-blog-in-the-age-of-agents/
1•jerpint•2m ago•0 comments

The Fall of the Nerds

https://www.noahpinion.blog/p/the-fall-of-the-nerds
1•otoolep•4m ago•0 comments

I'm 15 and built a free tool for reading Greek/Latin texts. Would love feedback

https://the-lexicon-project.netlify.app/
1•breadwithjam•7m ago•1 comments

How close is AI to taking my job?

https://epoch.ai/gradient-updates/how-close-is-ai-to-taking-my-job
1•cjbarber•7m ago•0 comments

You are the reason I am not reviewing this PR

https://github.com/NixOS/nixpkgs/pull/479442
2•midzer•9m ago•1 comments

Show HN: FamilyMemories.video – Turn static old photos into 5s AI videos

https://familymemories.video
1•tareq_•11m ago•0 comments

How Meta Made Linux a Planet-Scale Load Balancer

https://softwarefrontier.substack.com/p/how-meta-turned-the-linux-kernel
1•CortexFlow•11m ago•0 comments

A Turing Test for AI Coding

https://t-cadet.github.io/programming-wisdom/#2026-02-06-a-turing-test-for-ai-coding
2•phi-system•11m ago•0 comments

How to Identify and Eliminate Unused AWS Resources

https://medium.com/@vkelk/how-to-identify-and-eliminate-unused-aws-resources-b0e2040b4de8
2•vkelk•12m ago•0 comments

A2CDVI – HDMI output from from the Apple IIc's digital video output connector

https://github.com/MrTechGadget/A2C_DVI_SMD
2•mmoogle•12m ago•0 comments

CLI for Common Playwright Actions

https://github.com/microsoft/playwright-cli
3•saikatsg•13m ago•0 comments

Would you use an e-commerce platform that shares transaction fees with users?

https://moondala.one/
1•HamoodBahzar•15m ago•1 comments

Show HN: SafeClaw – a way to manage multiple Claude Code instances in containers

https://github.com/ykdojo/safeclaw
2•ykdojo•18m ago•0 comments

The Future of the Global Open-Source AI Ecosystem: From DeepSeek to AI+

https://huggingface.co/blog/huggingface/one-year-since-the-deepseek-moment-blog-3
3•gmays•18m ago•0 comments

The Evolution of the Interface

https://www.asktog.com/columns/038MacUITrends.html
2•dhruv3006•20m ago•1 comments

Azure: Virtual network routing appliance overview

https://learn.microsoft.com/en-us/azure/virtual-network/virtual-network-routing-appliance-overview
2•mariuz•20m ago•0 comments

Seedance2 – multi-shot AI video generation

https://www.genstory.app/story-template/seedance2-ai-story-generator
2•RyanMu•24m ago•1 comments

Πfs – The Data-Free Filesystem

https://github.com/philipl/pifs
2•ravenical•27m ago•0 comments

Go-busybox: A sandboxable port of busybox for AI agents

https://github.com/rcarmo/go-busybox
3•rcarmo•28m ago•0 comments

Quantization-Aware Distillation for NVFP4 Inference Accuracy Recovery [pdf]

https://research.nvidia.com/labs/nemotron/files/NVFP4-QAD-Report.pdf
2•gmays•29m ago•0 comments

xAI Merger Poses Bigger Threat to OpenAI, Anthropic

https://www.bloomberg.com/news/newsletters/2026-02-03/musk-s-xai-merger-poses-bigger-threat-to-op...
2•andsoitis•29m ago•0 comments

Atlas Airborne (Boston Dynamics and RAI Institute) [video]

https://www.youtube.com/watch?v=UNorxwlZlFk
2•lysace•30m ago•0 comments

Zen Tools

http://postmake.io/zen-list
2•Malfunction92•32m ago•0 comments

Is the Detachment in the Room? – Agents, Cruelty, and Empathy

https://hailey.at/posts/3mear2n7v3k2r
2•carnevalem•33m ago•1 comments

The purpose of Continuous Integration is to fail

https://blog.nix-ci.com/post/2026-02-05_the-purpose-of-ci-is-to-fail
1•zdw•35m ago•0 comments

Apfelstrudel: Live coding music environment with AI agent chat

https://github.com/rcarmo/apfelstrudel
2•rcarmo•36m ago•0 comments

What Is Stoicism?

https://stoacentral.com/guides/what-is-stoicism
3•0xmattf•36m ago•0 comments

What happens when a neighborhood is built around a farm

https://grist.org/cities/what-happens-when-a-neighborhood-is-built-around-a-farm/
1•Brajeshwar•36m ago•0 comments
Open in hackernews

Show HN: I added A/B testing to my cold email generator – does this add value?

https://coldcopy.xyz
2•ZeeeTH•7mo ago
I built ColdCopy (coldcopy.xyz) a few days ago to solve my own cold email writing struggles. Initially it just generated one personalized email, but I kept wondering "should this be more direct or more friendly?" So I added A/B testing - now it generates 3 versions (Professional, Friendly, Direct) side-by-side so you can compare and pick the best approach. Early users seem to like having options, but I'm curious if this is genuinely useful or just feature bloat. Does having multiple versions actually help with cold outreach, or does it create decision paralysis? The technical implementation was straightforward - same form data, three API calls with different prompt variations, display in a responsive grid. But I'm more interested in whether it solves a real problem. Built with Next.js 14 + OpenAI API. Currently free with daily limits. What do you think - is A/B testing for cold emails useful, or am I overthinking this?

Comments

cebert•7mo ago
I’m not a fan of cold emails in general so I would say no this does not provide value. I’m sure others have different opinions as it’s an important part of marketing.
ZeeeTH•7mo ago
I get that cold emails aren't ideal for everyone. The A/B testing has been helpful for me in understanding audience preferences, but I'm curious - what alternatives have you found more effective? I'm always open to trying different approaches.
cebert•7mo ago
I think what some sales people don’t understand is that some organizations are large. They reach out to me trying to sell a product or service, but I have minimal to no influence in what business arrangements the firm I work at makes. That’s all determined by the c-suite and divisional presidents.
ZeeeTH•7mo ago
Good insight about company size mattering. I think you're right that my approach probably works better for smaller orgs where there's less hierarchy. For larger companies, I imagine the relationship-building aspect becomes much more important. What's been your experience with breaking into those bigger accounts?
cebert•7mo ago
For larger firms (>4000 employees), if I were in a sales role, I’d try to get a sense of the org chart and try to make inroads with individuals in senior leadership positions first.
yamatokaneko•7mo ago
That’s exactly how I use ChatGPT, to rewrite my writing by asking for 3 variations instead of just one.

The issue with Gmail’s built-in writing assistant is that it only gives a single suggestion, and it’s always a binary yes/no. I usually end up declining it.

With multiple versions, there's a higher chance one will resonate. Plus, I can mix and match the best parts to suit my tone. So yes, I think offering variations is definitely the right move.