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ProductJuly 9, 2026· 4 min read

PropFill Launch: Why We Built an AI That Writes 3 Proposals at Once

Every proposal team has lived the same frustrating cycle. You spend days writing one response to an RFP. You submit it, cross your fingers, and wait. When the rejection arrives, you wonder: would a different angle have won? Would a bolder opening have caught the evaluator's eye? Would more compliance language have scored higher?

That question — "what if we had tried a different strategy?" — is exactly why we built PropFill.

The Problem with One Draft

Traditional proposal writing forces a single strategic bet. Your team debates the approach, picks one direction, and commits dozens of hours to that path. If the evaluators wanted something different, you never know. The feedback you get — if you get any — is too vague to act on.

This is not a writing problem. It is a strategy problem. The best proposal teams in the world do not just write well. They think strategically about what will resonate with the specific evaluator reading their submission.

But running three separate strategies by hand? That would triple your timeline and your budget. Nobody has time for that.

Three Strategies, One Upload

PropFill is an AI proposal generator that takes your RFP and your proposal template — whether DOCX or PPTX — and fills every section with three strategically different versions.

Each version uses a different "Win Theme" to approach the same requirements:

  • Impact — Bold claims, decisive language, ROI-focused. Best for competitive pitches where you need to stand out.
  • Precision — Point-by-point compliance, systematic structure, technical depth. Best for government contracts and technical RFPs.
  • Story — Empathy-driven narrative, relationship building, collaborative tone. Best for consulting proposals and new client relationships.

You upload once. The AI reads your RFP requirements, understands your template structure, and generates all three versions. Then you compare them side by side and pick the one that fits — or mix sections from each.

Why Win Themes Matter

Win themes are not a new concept. Government proposal consultants have used them for decades. The idea is simple: every proposal should be organized around a central argument for why your team is the best choice.

What is new is making this accessible. Previously, developing multiple win themes meant hiring a proposal strategist at $200-400 per hour or having a senior team spend weeks on alternatives. PropFill democratizes this by letting any team — even a solo consultant — generate three professional strategic approaches in minutes.

Your Template, Your Format

Unlike other AI proposal tools that force you into their templates, PropFill preserves yours. Upload your company's branded DOCX template or your client's PPTX slide deck, and the AI fills it in. Your formatting, your fonts, your logo — all preserved. The output is your document, just filled with strategic content.

This matters because many RFPs require specific formatting. Government contracts often mandate page limits, font sizes, and section ordering. PropFill respects all of that because it works within your existing structure rather than replacing it.

No Subscription, No Lock-In

We deliberately chose a pay-per-use model. Most proposal software charges $75-125 per month whether you use it or not. If you respond to two RFPs per month, that might make sense. But most small firms and consultants respond to proposals irregularly — sometimes three in one week, then nothing for a month.

PropFill costs $19 per proposal for the Starter plan or $29 per proposal with the Professional plan. You get all three Win Theme versions included. Your first proposal is completely free — no credit card required.

Try PropFill today. Upload your next RFP and see three strategies you never would have written by hand.

Ready to write your best proposal?

Upload your RFP and template. Get three winning strategies in minutes.

Try PropFill Free →

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