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A narrow long-context reviewer scoped to proposal writing alone — no platform, no migration, no six-month rollout. Aimed at construction project managers, proving value before anyone signs anything.
In short: Proposal Builder Built for Project Managers is a long-context reviewer aimed at construction project managers, covering proposal writing. It scores 71/100 on AltF Ideas, carried by timing (86) and held back by feasibility (33). Typical pricing is $1.1k–$21k per customer per year, with a first version reachable in six to twelve months for $36k–$111k.
Construction teams lose proposals rebuilt from scratch that are 80% identical. It is the kind of task that is too small to fund and too costly to ignore. Most operators assume this is simply the cost of doing business.
A long-context reviewer that handles proposal writing end to end and hands a human the exceptions rather than the queue. Revenue is seat saas, which suits a buyer who wants the cost to track the value rather than the seat count.
| Total addressable market | $777M |
|---|---|
| Category growth (CAGR) | 17% |
| Annual contract value | $1.1k – $21k |
| Pricing model | Seat SaaS |
| Time to first revenue | 46 days |
| Startup cost to MVP | $36k – $111k |
| Build effort | 6-12 months |
Million-token context windows made whole-document reasoning possible in one pass. Construction is growing at roughly 20% a year, and this job has not been re-tooled since it was designed around paper.
| Who | The gap |
|---|---|
| A vertical competitor | Priced and scoped for enterprise accounts, not this segment |
| An internal hire | Works until volume doubles, then breaks again |
| The incumbent suite | Sells a platform; this job is one neglected module inside it |
Accuracy is unforgiving here — one wrong output costs more than the subscription.
An idea you cannot act on is entertainment. Four concrete steps, wired to tools already running on AltFTool.
Score problem urgency, willingness to pay, and reachable audience size before writing any code.
→ AltF IdeaLabAsk how they handle this today and what it costs them. If nobody can quantify the pain, the demand score is optimistic.
→ Survey BuilderCheck availability, DNS, and email authentication in one pass so your first outreach lands in an inbox.
→ AltF DomainOpsStand up intake, the review queue, and billing before you build the clever part.
→ AltF Flow