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A long-context reviewer that sits beside the existing system, reads what it already produces, and closes document review. Aimed at legal partners, built for one person, not a department.
In short: Document Reviewer for Legal, Run by Long context is a long-context reviewer aimed at legal partners, covering document review. It scores 78/100 on AltF Ideas, carried by timing (95) and held back by feasibility (55). Typical pricing is $2.7k–$54k per customer per year, with a first version reachable in six to twelve months for $30k–$85k.
Legal teams lose a 900-page document read by someone billing $300 an hour. It is the kind of task that is too small to fund and too costly to ignore. The backlog only surfaces when a customer or an auditor finds it first.
Document review handled by a long-context reviewer, with a human signing rather than writing. Revenue is usage-based, which suits a buyer who wants the cost to track the value rather than the seat count.
| Total addressable market | $1.4B |
|---|---|
| Category growth (CAGR) | 14% |
| Annual contract value | $2.7k – $54k |
| Pricing model | Usage-based |
| Time to first revenue | 46 days |
| Startup cost to MVP | $30k – $85k |
| Build effort | 6-12 months |
Million-token context windows made whole-document reasoning possible in one pass. Legal is growing at roughly 12% a year, and this job has not been re-tooled since it was designed around paper.
| Who | The gap |
|---|---|
| An offshore back office | Cheaper per hour, but does not scale down to the tail |
| An internal hire | Works until volume doubles, then breaks again |
| A spreadsheet | The real incumbent in most of the market, and it is free |
The incumbent is a person, and displacing a person is a change-management problem.
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