Your 'Handmade' Proposals Are at a Disadvantage in AI Screeners

Last month, I sent out three client proposals and heard nothing back. I only realized why later.

As solopreneurs, when we send out proposals, resumes, or partnership pitches, we often just hit send after writing them, thinking good content is enough. But more and more companies are using AI systems for initial screening—it's not a person reading your stuff, it's a machine scoring it first. Your carefully crafted 'human-flavored' copy might actually seem insufficiently 'standard' to the algorithm.

I also got stuck here before. I thought: my content is solid, flashy stuff is useless. But nobody on the client side even saw my content; it got screened out by the machine in the first round.

What the Research Says + Who's Already Losing Out

This recently published study (arxiv 2509.00462) did a controlled experiment: the same batch of resumes, one group original, one group optimized by AI for wording and structure—not faked, just expressed more 'neatly.' Then they let mainstream AI screening systems score them.

Result: the AI-optimized version had a significantly higher pass rate. The researchers call this 'AI self-preferencing'—simply put, AI prefers AI-flavored stuff.

My friend Chen Xiaolin (a freelance brand designer in Shenzhen) applied to a big tech company's vendor pool last year. Her portfolio was clearly stronger than her peers, but she just couldn't get in. Later, she used GPT to restructure the same proposal and resubmitted—passed instantly. She laughed bitterly to me: 'I originally lost because it wasn't being read by a human.'

What this means for us: if your clients use AI for initial screening (many big companies and platforms already do), your purely handwritten proposals might get downscored right from the start. It's not that you're not good enough; it's that the format doesn't suit the machine's taste.

What You Can Do Today

Money: $0 (free version of ChatGPT or Claude works)

Time: 15-30 minutes to adjust a proposal

Technical barrier: If you can type and chat, you're good. Zero tech skills required.

First step: Paste your existing proposal into ChatGPT and say, 'Help me optimize the wording and structure of this business proposal. Don't change the facts, just make it clearer and more professional.'

Note: This isn't about faking things; it's about letting AI adjust your expression to a format the screener can more easily 'read.' The content is still yours; it's just repackaged.

Not everyone needs this tool—if your clients are all referrals you chat with directly, you can completely ignore this. It's fine if you don't try it right now.

Advice by Stage

Side-hustlers just starting out: If you mainly rely on your network for gigs and clients are all from DMs, this isn't urgent. Wait until you're pitching platforms or big companies; don't give yourself extra anxiety.

Folks with 1-2 clients: If you occasionally write proposals or quotes, I'd suggest spending 10 minutes letting AI polish your wording before sending it next time. You don't have to do it every time; just try it once to feel the difference.

Small teams scaling up: If you're batch-pitching clients or entering vendor pools, you absolutely must do this. Have AI optimize all your proposal templates and company intros, and make it a standard process. I messed this up—thinking good content was enough, I got screened out three rounds in a row before waking up, wasting two whole months.